This document provides calculations for kitchen ventilation requirements. It determines that a mobile hot cabinet appliance area requires 662.5 CFM of exhaust and additional makeup air is needed from the surrounding hood area, totaling 984 CFM required. A 1200 CFM kitchen exhaust fan and 960 CFM makeup fan are selected to meet the calculated needs. Technical specifications are also provided for the selected fans.
How to calculate cfm for commercial kitchen exhaust ventilation (1)Ahmad Affan
The volume is actually the capacity of the compressor in order to press the air over a unit of time and it is measured in CFM (Cubic Feet Minute) which is basically the same as PCM (Cubic Feet per Minute) or l/min (liters per minute). 1 CFM is the acronym for 1 ft³/min = 1 ft³/min. Correspondingly, in order to convert cubic feet per minute (ft³/min) to cubic meters per hour (m³/h), you will have to multiply it by: 1.699.
This document provides information about CKS Fang Yuan Industry Roof Blowers. It describes the key features of their RCU Series roof blowers including their aluminum alloy structure, advanced motor cooling, direct or belt drive options, anti-explosion certification, and quality control testing. Technical specifications and performance curves are provided for multiple RCU model sizes, showing airflow, static pressure, power requirements, and operating speeds. Typical applications for these roof blowers include factory exhaust, restaurant grease exhaust, and agricultural ventilation.
Duct systems are designed to properly distribute air throughout a building. The document discusses different types of ducts and materials used, such as galvanized iron and pre-insulated sheet metal. It also covers duct sizing methods like the constant velocity method and constant pressure loss method. Filters are described as being important to air quality, with different filter types and MERV ratings discussed. The roles of dampers and fans in HVAC systems are explained.
Objectives
- Introduction
Natural Ventilation
Mechanical Extract
- Traditional Systems
- Jet fan or induction systems
- Technology and material Jetfan
- Operation of JetFan
- Examples of Fans for induction systems
- A control system
- Installation of JetFans - Computational fluid dynamics (CFD)
- References
Fundamentals of HVAC Systems is a thorough introduction on how HVAC systems control temperature, air quality and air circulation in a conditioned space.
Ideal for recent engineering graduates working in the HVAC&R industry, experienced engineers entering HVAC&R from another engineering area, as well as architects, technicians, construction or building management professionals who need to increase their knowledge of HVAC systems.
This course reader can function as a stand-alone reference, or may accompany the eLearning course, Fundamentals of HVAC Systems, online modules.
This document provides an overview of HVAC (heating, ventilation, and air conditioning) systems. It defines HVAC as the control of air temperature, moisture content, and proper air movement to maintain acceptable air quality. It then describes common HVAC applications in buildings and industries. The document outlines the basic components and operating cycle of air conditioning systems. It also discusses factors to consider when selecting and designing HVAC systems, such as cooling load calculations, equipment types, ducting, and air distribution. Finally, it covers recent trends toward more energy efficient HVAC equipment and controls.
The document provides formulas and definitions for various HVAC concepts. Some key formulas include: the ton of refrigeration which is equal to 288,000 BTU/24 hr or 12,000 BTU/hr; one horsepower equals 33,000 ft-lb of work in one minute or 746 Watts; converting between BTUs, KWs and Watts for heating and cooling equipment. Common gas laws and formulas for area, perimeter, volume and capacitance are also listed.
How to calculate cfm for commercial kitchen exhaust ventilation (1)Ahmad Affan
The volume is actually the capacity of the compressor in order to press the air over a unit of time and it is measured in CFM (Cubic Feet Minute) which is basically the same as PCM (Cubic Feet per Minute) or l/min (liters per minute). 1 CFM is the acronym for 1 ft³/min = 1 ft³/min. Correspondingly, in order to convert cubic feet per minute (ft³/min) to cubic meters per hour (m³/h), you will have to multiply it by: 1.699.
This document provides information about CKS Fang Yuan Industry Roof Blowers. It describes the key features of their RCU Series roof blowers including their aluminum alloy structure, advanced motor cooling, direct or belt drive options, anti-explosion certification, and quality control testing. Technical specifications and performance curves are provided for multiple RCU model sizes, showing airflow, static pressure, power requirements, and operating speeds. Typical applications for these roof blowers include factory exhaust, restaurant grease exhaust, and agricultural ventilation.
Duct systems are designed to properly distribute air throughout a building. The document discusses different types of ducts and materials used, such as galvanized iron and pre-insulated sheet metal. It also covers duct sizing methods like the constant velocity method and constant pressure loss method. Filters are described as being important to air quality, with different filter types and MERV ratings discussed. The roles of dampers and fans in HVAC systems are explained.
Objectives
- Introduction
Natural Ventilation
Mechanical Extract
- Traditional Systems
- Jet fan or induction systems
- Technology and material Jetfan
- Operation of JetFan
- Examples of Fans for induction systems
- A control system
- Installation of JetFans - Computational fluid dynamics (CFD)
- References
Fundamentals of HVAC Systems is a thorough introduction on how HVAC systems control temperature, air quality and air circulation in a conditioned space.
Ideal for recent engineering graduates working in the HVAC&R industry, experienced engineers entering HVAC&R from another engineering area, as well as architects, technicians, construction or building management professionals who need to increase their knowledge of HVAC systems.
This course reader can function as a stand-alone reference, or may accompany the eLearning course, Fundamentals of HVAC Systems, online modules.
This document provides an overview of HVAC (heating, ventilation, and air conditioning) systems. It defines HVAC as the control of air temperature, moisture content, and proper air movement to maintain acceptable air quality. It then describes common HVAC applications in buildings and industries. The document outlines the basic components and operating cycle of air conditioning systems. It also discusses factors to consider when selecting and designing HVAC systems, such as cooling load calculations, equipment types, ducting, and air distribution. Finally, it covers recent trends toward more energy efficient HVAC equipment and controls.
The document provides formulas and definitions for various HVAC concepts. Some key formulas include: the ton of refrigeration which is equal to 288,000 BTU/24 hr or 12,000 BTU/hr; one horsepower equals 33,000 ft-lb of work in one minute or 746 Watts; converting between BTUs, KWs and Watts for heating and cooling equipment. Common gas laws and formulas for area, perimeter, volume and capacitance are also listed.
This document discusses principles and methods for estimating cooling loads on buildings. It covers heat transfer mechanisms like conduction, convection and radiation. It explains factors that affect human comfort and methods to estimate different components of a cooling load, including conduction through surfaces, solar heat gain through windows, internal heat gains from occupants, lights, equipment and infiltration. An example calculation is provided to estimate the sensible and latent cooling loads on an office space from these various components. The purpose is to understand and quantify all sources of heat gain on a building to properly size air conditioning equipment.
This document discusses heating, ventilation, and air conditioning (HVAC) systems and their importance in manufacturing quality pharmaceutical products. It addresses how HVAC systems control factors like temperature, humidity, air particles, and microbes. Contamination can originate from the environment, operators, or equipment and cross-contamination needs to be minimized. Proper HVAC design, maintenance, and procedures are critical to maintaining clean manufacturing conditions. The document also defines humidity measurement and different HVAC system types like central air conditioning. Dehumidification is important for operations in humid climates. In conclusion, air handling systems are critical systems that must be properly designed and treated as such.
1) Air handling units (AHUs) are devices used to regulate and circulate air as part of HVAC systems. They contain components like fans, filters, coils, and dampers.
2) AHUs can be classified based on fan location as draw-through or blow-through units. Draw-through units have fans after coils while blow-through units have fans before coils.
3) Other classifications include vertical, horizontal, ceiling-suspended, and packaged AHUs. Packaged AHUs have components in a single casing and are commonly used in smaller buildings.
The document provides a cooling load calculation report for a warehouse building with two floors. It includes input data on the building specifications, outdoor and indoor design conditions, external and internal loads, and ventilation requirements. Calculations were performed using HAP software to determine the cooling loads on a space-by-space and system-by-system basis. The report summarizes the input data, output cooling loads, and compares the results to design values.
This document provides information about a seminar on heating, ventilation, and air conditioning (HVAC). It defines HVAC and describes what it does to improve indoor air quality and regulate temperature and humidity. The document outlines the need for HVAC systems and discusses the basic components and processes involved, including heating, ventilation, air conditioning, and different installation types. It highlights advantages like energy conservation and air quality improvement, as well as disadvantages such as high initial costs. The document also lists applications of HVAC systems.
This document is ANSI/ASHRAE Standard 62.1-2019, which provides requirements and procedures for ventilation and acceptable indoor air quality in buildings. It supersedes the 2016 version and includes additional approved addenda. The standard is maintained through continuous revisions and provides procedures for submitting change requests. Copies can be purchased from ASHRAE. It was developed by the ASHRAE Standing Standard Project Committee 62.1 and sets non-mandatory guidelines for indoor air quality.
The document provides an overview of heating, ventilation, and air conditioning (HVAC) systems. It defines HVAC and its purpose to condition air and maintain temperature, humidity, and air quality. It then describes the basic refrigeration cycle and various HVAC system types, including window units, split systems, packaged units, and central air conditioning. Key HVAC components like compressors, condensers, evaporators, and ductwork are also outlined. Finally, the document discusses HVAC goals, potentials, challenges, and maintenance.
This document discusses cooling load, which is the thermal energy that must be removed from a space to maintain comfort conditions. It outlines various components that contribute to cooling load, including heat gains from enclosure elements, internal loads, and outdoor air. Key terms are defined, such as cooling load temperature difference (CLTD) and cooling load factor (CLF), which are used to account for time delays in radiation and conduction gains. Methods for calculating cooling loads from walls, roofs, glazing, lighting, people and other internal sources are presented.
This document is a Victaulic general catalog that provides information on Victaulic's grooved mechanical pipe joining systems and products. It lists Victaulic's worldwide locations and contact information. It also outlines the regulatory compliance certifications that Victaulic has obtained for its fire protection, potable water, maritime, HVAC, plumbing, pressure equipment, chemical safety, and other product lines. Finally, it provides a table of contents that outlines the products covered in the catalog, including couplings, fittings, expansion joints, and other grooved components.
This document provides an overview of calculating heating loads for buildings. It discusses determining heat loss through building envelope components like walls, windows, floors, and infiltration. The heat loss equation and assumptions are explained. Methods for calculating U-factors and R-values of walls, floors, windows, and doors are given. Corrections for factors like framing, metal studs, and cavity depth are also covered. Sample heating load calculations are worked through as examples.
The document discusses heating, ventilation, and air conditioning (HVAC) systems. It defines HVAC and describes its main functions of temperature control, humidity control, pressure regulation, and air circulation. It outlines the major components of HVAC systems including air handling units, ducting systems, and air diffusers/grilles. Air handling units have components like filters, heating/cooling coils, humidifiers/dehumidifiers, and fans. Ducting systems distribute conditioned air through ducts in various shapes and materials. Diffusers/registers release supply air into a space in a regulated fashion.
Design, Installation and Testing of the VRF SystemSocheat Veng
The document provides details about the design, installation, and testing of a VRF air conditioning system at the TK Royal One building in Cambodia.
[1] It describes the components of a Panasonic VRF system, including outdoor units, indoor units, and compressor types. Load calculations were performed using estimation and manual methods to determine a total cooling load of 109.8kW was required.
[2] An outdoor unit model U-40ME2R8 with 113kW maximum cooling capacity was selected. Four indoor ducted units were chosen for the conference hall.
[3] The installation process for air ducts, copper pipes, drain pipes, and outdoor/indoor units is
Introduction to Air Distribution Systems, Fluid Mechanics—A Brief Review, Air Duct Sizing—Special Design Considerations, Minor Head Loss in a Run of Pipe or Duct , Minor Losses in the Design of Air Duct Systems—Equal Friction Method, Fans—Brief Overview and Selection Procedures
This document provides an overview of HVAC systems, including the different types of HVAC systems and their components. It discusses air conditioning chillers, air handling systems, fans and pumps, HVAC piping, instrumentation and controls, and the HVAC commissioning process. The primary purpose of HVAC systems is to provide healthy and comfortable interior conditions for occupants using minimal energy and reducing pollutant emissions. Key components include chillers, air handling units, fans, ducts, coils, filters and controls. Proper commissioning ensures systems are installed correctly and perform as intended.
This is a presentation regarding the introduction to the heating and cooling system technology called variable refrigerant flow systems. (non-commercial)
HVAC System Analysis of two-storey hospital buildingAsifAkram18
Conduction of a heat load and cooling load analysis and design of a HVAC system of a two-storey hospital building to determine the cooling and heating loads, and representation of the system using Camel software.
This document provides information on hourly analysis programs for air systems, including:
1. Descriptions of common air system types like single zone constant volume, VAV, dual duct, etc.
2. Details on outdoor air options, economizer operation, ventilation and reheat coils for different system types.
3. Explanations of zone components like assignment, diversity factors, and two methods for calculating zone and space airflows.
4. Overviews of the system sizing process and generation of design reports.
5. Information on plant systems that provide cooling and heating to air handler coils, including examples of chiller plants, hot water boiler plants, and load profiles.
This document provides information about packaged air conditioners. It begins by defining a ton of refrigeration and providing an example calculation for selecting the appropriate size for a room. It then explains that packaged air conditioners are used for cooling capacities between 5-20 tons. The main components of packaged air conditioners, including the compressor, cooling coil, and air handling unit, are enclosed in a single casing. There are two main types - water cooled and air cooled - which only differ in their condenser type. Water cooled units use a shell and tube condenser cooled by water, while air cooled units use an outdoor condenser cooled by atmospheric air. The document concludes by listing some benefits of packaged air conditioners like space efficiency and quick
Pressure relieving valves like safety valves and safety relief valves are used in thermal power plants to prevent overpressure in pressurized systems. There are different types including safety valves, safety relief valves, and power operated relief valves. Safety valves open fully at a set pressure while safety relief valves can open proportionally. Standards like ASME Section I provide requirements for safety valve installation, capacity, materials, and settings to ensure systems are properly protected from overpressure. Safety valves are part of defense-in-depth protection schemes used in power plants to prevent accidents.
Ever since your elementary school days, doing your homework has been the key factor in making the grade. Years later, it still counts. This time, your kitchen is the test... and you need to pass to keep people safe. Who’s giving the crash course to help you pass test? That would be the National Fire Prevention Association (NFPA). Educate yourself and your team on best ways to prevent Kitchen Exhaust Fires with the tips and tricks from our Certified Exhaust Cleaning Specialist.
This document provides information about kitchen ventilation systems. It discusses the types of buildings that require kitchen ventilation such as hotels, restaurants, hospitals, etc. It covers the design of kitchen ventilation systems including components like exhaust hoods, exhaust fans, ductwork, filters and makeup air systems. The document provides guidelines for calculating exhaust air flow rates based on the type of cooking equipment. It also discusses best practices for installation and maintenance of kitchen ventilation systems for effective capture and removal of heat, effluents and grease from commercial kitchens.
This document discusses principles and methods for estimating cooling loads on buildings. It covers heat transfer mechanisms like conduction, convection and radiation. It explains factors that affect human comfort and methods to estimate different components of a cooling load, including conduction through surfaces, solar heat gain through windows, internal heat gains from occupants, lights, equipment and infiltration. An example calculation is provided to estimate the sensible and latent cooling loads on an office space from these various components. The purpose is to understand and quantify all sources of heat gain on a building to properly size air conditioning equipment.
This document discusses heating, ventilation, and air conditioning (HVAC) systems and their importance in manufacturing quality pharmaceutical products. It addresses how HVAC systems control factors like temperature, humidity, air particles, and microbes. Contamination can originate from the environment, operators, or equipment and cross-contamination needs to be minimized. Proper HVAC design, maintenance, and procedures are critical to maintaining clean manufacturing conditions. The document also defines humidity measurement and different HVAC system types like central air conditioning. Dehumidification is important for operations in humid climates. In conclusion, air handling systems are critical systems that must be properly designed and treated as such.
1) Air handling units (AHUs) are devices used to regulate and circulate air as part of HVAC systems. They contain components like fans, filters, coils, and dampers.
2) AHUs can be classified based on fan location as draw-through or blow-through units. Draw-through units have fans after coils while blow-through units have fans before coils.
3) Other classifications include vertical, horizontal, ceiling-suspended, and packaged AHUs. Packaged AHUs have components in a single casing and are commonly used in smaller buildings.
The document provides a cooling load calculation report for a warehouse building with two floors. It includes input data on the building specifications, outdoor and indoor design conditions, external and internal loads, and ventilation requirements. Calculations were performed using HAP software to determine the cooling loads on a space-by-space and system-by-system basis. The report summarizes the input data, output cooling loads, and compares the results to design values.
This document provides information about a seminar on heating, ventilation, and air conditioning (HVAC). It defines HVAC and describes what it does to improve indoor air quality and regulate temperature and humidity. The document outlines the need for HVAC systems and discusses the basic components and processes involved, including heating, ventilation, air conditioning, and different installation types. It highlights advantages like energy conservation and air quality improvement, as well as disadvantages such as high initial costs. The document also lists applications of HVAC systems.
This document is ANSI/ASHRAE Standard 62.1-2019, which provides requirements and procedures for ventilation and acceptable indoor air quality in buildings. It supersedes the 2016 version and includes additional approved addenda. The standard is maintained through continuous revisions and provides procedures for submitting change requests. Copies can be purchased from ASHRAE. It was developed by the ASHRAE Standing Standard Project Committee 62.1 and sets non-mandatory guidelines for indoor air quality.
The document provides an overview of heating, ventilation, and air conditioning (HVAC) systems. It defines HVAC and its purpose to condition air and maintain temperature, humidity, and air quality. It then describes the basic refrigeration cycle and various HVAC system types, including window units, split systems, packaged units, and central air conditioning. Key HVAC components like compressors, condensers, evaporators, and ductwork are also outlined. Finally, the document discusses HVAC goals, potentials, challenges, and maintenance.
This document discusses cooling load, which is the thermal energy that must be removed from a space to maintain comfort conditions. It outlines various components that contribute to cooling load, including heat gains from enclosure elements, internal loads, and outdoor air. Key terms are defined, such as cooling load temperature difference (CLTD) and cooling load factor (CLF), which are used to account for time delays in radiation and conduction gains. Methods for calculating cooling loads from walls, roofs, glazing, lighting, people and other internal sources are presented.
This document is a Victaulic general catalog that provides information on Victaulic's grooved mechanical pipe joining systems and products. It lists Victaulic's worldwide locations and contact information. It also outlines the regulatory compliance certifications that Victaulic has obtained for its fire protection, potable water, maritime, HVAC, plumbing, pressure equipment, chemical safety, and other product lines. Finally, it provides a table of contents that outlines the products covered in the catalog, including couplings, fittings, expansion joints, and other grooved components.
This document provides an overview of calculating heating loads for buildings. It discusses determining heat loss through building envelope components like walls, windows, floors, and infiltration. The heat loss equation and assumptions are explained. Methods for calculating U-factors and R-values of walls, floors, windows, and doors are given. Corrections for factors like framing, metal studs, and cavity depth are also covered. Sample heating load calculations are worked through as examples.
The document discusses heating, ventilation, and air conditioning (HVAC) systems. It defines HVAC and describes its main functions of temperature control, humidity control, pressure regulation, and air circulation. It outlines the major components of HVAC systems including air handling units, ducting systems, and air diffusers/grilles. Air handling units have components like filters, heating/cooling coils, humidifiers/dehumidifiers, and fans. Ducting systems distribute conditioned air through ducts in various shapes and materials. Diffusers/registers release supply air into a space in a regulated fashion.
Design, Installation and Testing of the VRF SystemSocheat Veng
The document provides details about the design, installation, and testing of a VRF air conditioning system at the TK Royal One building in Cambodia.
[1] It describes the components of a Panasonic VRF system, including outdoor units, indoor units, and compressor types. Load calculations were performed using estimation and manual methods to determine a total cooling load of 109.8kW was required.
[2] An outdoor unit model U-40ME2R8 with 113kW maximum cooling capacity was selected. Four indoor ducted units were chosen for the conference hall.
[3] The installation process for air ducts, copper pipes, drain pipes, and outdoor/indoor units is
Introduction to Air Distribution Systems, Fluid Mechanics—A Brief Review, Air Duct Sizing—Special Design Considerations, Minor Head Loss in a Run of Pipe or Duct , Minor Losses in the Design of Air Duct Systems—Equal Friction Method, Fans—Brief Overview and Selection Procedures
This document provides an overview of HVAC systems, including the different types of HVAC systems and their components. It discusses air conditioning chillers, air handling systems, fans and pumps, HVAC piping, instrumentation and controls, and the HVAC commissioning process. The primary purpose of HVAC systems is to provide healthy and comfortable interior conditions for occupants using minimal energy and reducing pollutant emissions. Key components include chillers, air handling units, fans, ducts, coils, filters and controls. Proper commissioning ensures systems are installed correctly and perform as intended.
This is a presentation regarding the introduction to the heating and cooling system technology called variable refrigerant flow systems. (non-commercial)
HVAC System Analysis of two-storey hospital buildingAsifAkram18
Conduction of a heat load and cooling load analysis and design of a HVAC system of a two-storey hospital building to determine the cooling and heating loads, and representation of the system using Camel software.
This document provides information on hourly analysis programs for air systems, including:
1. Descriptions of common air system types like single zone constant volume, VAV, dual duct, etc.
2. Details on outdoor air options, economizer operation, ventilation and reheat coils for different system types.
3. Explanations of zone components like assignment, diversity factors, and two methods for calculating zone and space airflows.
4. Overviews of the system sizing process and generation of design reports.
5. Information on plant systems that provide cooling and heating to air handler coils, including examples of chiller plants, hot water boiler plants, and load profiles.
This document provides information about packaged air conditioners. It begins by defining a ton of refrigeration and providing an example calculation for selecting the appropriate size for a room. It then explains that packaged air conditioners are used for cooling capacities between 5-20 tons. The main components of packaged air conditioners, including the compressor, cooling coil, and air handling unit, are enclosed in a single casing. There are two main types - water cooled and air cooled - which only differ in their condenser type. Water cooled units use a shell and tube condenser cooled by water, while air cooled units use an outdoor condenser cooled by atmospheric air. The document concludes by listing some benefits of packaged air conditioners like space efficiency and quick
Pressure relieving valves like safety valves and safety relief valves are used in thermal power plants to prevent overpressure in pressurized systems. There are different types including safety valves, safety relief valves, and power operated relief valves. Safety valves open fully at a set pressure while safety relief valves can open proportionally. Standards like ASME Section I provide requirements for safety valve installation, capacity, materials, and settings to ensure systems are properly protected from overpressure. Safety valves are part of defense-in-depth protection schemes used in power plants to prevent accidents.
Ever since your elementary school days, doing your homework has been the key factor in making the grade. Years later, it still counts. This time, your kitchen is the test... and you need to pass to keep people safe. Who’s giving the crash course to help you pass test? That would be the National Fire Prevention Association (NFPA). Educate yourself and your team on best ways to prevent Kitchen Exhaust Fires with the tips and tricks from our Certified Exhaust Cleaning Specialist.
This document provides information about kitchen ventilation systems. It discusses the types of buildings that require kitchen ventilation such as hotels, restaurants, hospitals, etc. It covers the design of kitchen ventilation systems including components like exhaust hoods, exhaust fans, ductwork, filters and makeup air systems. The document provides guidelines for calculating exhaust air flow rates based on the type of cooking equipment. It also discusses best practices for installation and maintenance of kitchen ventilation systems for effective capture and removal of heat, effluents and grease from commercial kitchens.
TR19 Regulations - B&ES Guide to Good Practice - London & Midland Cleaning C...The Pathway Group
TR19 Regulations - B&ES Guide to Good Practice - London & Midland Cleaning Company - see the regulations in regards to TR19 covering ventilation to cleaning to testing. It is a guide to good practice in your working environment.
For further information visit: www.londonandmidland.co.uk
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This document discusses various topics related to earthing design including:
1. Calculating the necessary cross-sectional area of conductors to carry grid fault current and prevent dangerous surface potentials.
2. Factors that influence surface current density such as soil resistivity, time to clear faults, and temperature limits.
3. Formulas to evaluate the cross-section of conductors based on mechanical and electrical requirements.
4. Techniques for measuring soil resistivity like taking readings in multiple directions to generate a polar curve and account for variability.
Gary August has over 30 years of experience in operations management, business development, and technical installation roles. He is looking for a permanent position that offers job security and longevity. He prides himself on his leadership, problem-solving skills, and ability to improve productivity and reduce costs. His references are available upon request.
Exhaust Hood Depot offers top of the line Captive Aire commercial exhaust hoods and exhaust fans as well as fire suppression systems. We have been selling restaurant hood systems and installing hood systems for over 30 years. Our goal is to be the total value leader in the industry.
Capital Cleaning is a specialist cleaning company that provides professional cleaning services for commercial kitchens and extraction systems. They clean in accordance with HVCA, BSRIA, CIBSE and NHS guidelines. As part of their services, they conduct risk assessments of kitchen extraction systems to identify fire hazards as required by health and safety law. They also provide certification of cleaning to help businesses manage fire risks associated with their extraction systems.
Erico Eritech Lightning Protection - IEC62305 Earthing Design Guide.
ERICO’s proven experience in providing grounding and bonding systems, including ground rods, ground enhancement material and signal reference grids, provides for the safe dissipation of energy.
Erico System 1000 - ESE Standard System
The ERITECH® SI Series encompasses three air terminal models and accessories that are designed to comply with the requirements of the French NFC17-102 and Spanish UNE-21186 Standards.
Erico System 2000 - Conventional Protection
ERICO offers the System 2000 series of air terminals, downconductors and fittings in accordance with Australian-AS1768, British-BS6651, Singaporean-CP33, European-IEC and USA-NFPA780 Standards.
Erico System 3000 - Enhanced Protection System
ERICO's System 3000 is a technically advanced lightning protection system. The unique features of this system allow optimum performance, flexibility of design, and overall cost-effective installation.
Vent-A-Hood is a 4th generation family business founded in 1933 that manufactures range hoods in the US. They have several advantages over competitors including better grease extraction, quieter operation, more efficient design, easier cleaning, greater fire safety, and a longer warranty. Vent-A-Hood uses a patented centrifugal "Magic Lung" technology that extracts 99% of grease compared to competitors that only extract 5-70%. Independent testing showed Vent-A-Hood produces less noise and is more efficient than other major brands like Best, Viking, Wolf, and Zephyr.
The document describes different types of fire protection systems in a building:
1) A sprinkler system with 4 zones and an alarm valve station.
2) A standpipe system with Class III hose stations for occupants and the fire department.
3) A pre-action system for the electrical substation with smoke detectors, a manual pull station, and components like a deluge valve and air compressor.
This is a great guide to surge protection from Hager and if you would like Hager Surge Protection fitted to your Bypass Switches Input for mains one or two please call us on 0800 978 8988 or email sales@criticalpowersupplies.co.uk
Critical Power Supplies provide a range of surge protection kits that can be fitted to any of our bypass switches or consumer units to meet Amendment 1 of the 17th Edition.
The surge protection devices in the kit offer type 2 protection to the BS EN 61643 standard, to ensure conformity with the current edition of BS 7671.
Amendment 1 of the 17th Edition requires electricians to conduct a risk assessment of properties to see if they require surge protection.
When you consider that many homes have a lot of sensitive electronic equipment, such as TVs, Hi-Fis, PCs and printers that would be adversely affected by a voltage surge, then the need for such devices increases.
Transient overvoltages are not just caused by a direct lightning strike, a nearby strike, within a kilometre, can cause substantial damage. Other causes can be fluctuations in the power supply or from equipment such as microwaves or showers being switched.
Our surge protection kit can prevent the spread of overvoltages in electrical installations and protect the equipment connected to it. It is characterised by an 8/20us current wave.
To gain a greateer understanding of Surge Protection and our Surge Protection Kit & Devices download a copy of our Guide to Surge Protection Devices.
The document discusses fire and life safety systems. It covers the purpose of these systems which is to protect occupants and property. It describes the main components which include detection, notification, suppression, means of egress, and compartmentalization. It also discusses passive fire protection like fire-rated assemblies and active fire protection such as sprinklers and alarms. Key standards and codes are identified. Maintenance and testing of these systems is emphasized.
This document discusses fire suppression systems for commercial kitchens. It outlines that 59% of restaurant fires are caused by cooking equipment and that inadequate fire protection poses catastrophic risks. Kitchen fire suppression systems are designed to protect all grease-producing appliances and exhaust ducts from ignition and spread. Wet chemical systems effectively extinguish grease fires by interrupting combustion and creating a foam blanket to isolate flames from oxygen. Proper inspection, testing, and maintenance of suppression systems according to NFPA standards is important for fire safety compliance.
The document summarizes major changes in the 2015 edition of NFPA 70E: Standard for Electrical Safety in the Workplace. Key changes include replacing terms like "harm" and "probablility" with more accurate terms, expanding definitions of terms like "qualified person" and "risk assessment", strengthening electrical safety program requirements, expanding training requirements, and modifying shock and arc flash risk assessment procedures and PPE categories. Changes aim to improve safety for electrical work by providing clearer guidance and better alignment with other safety standards.
This document summarizes different types of automatic fire sprinkler systems. It describes wet pipe, dry pipe, pre-action, and deluge systems, explaining their components, design concepts, and applications. The document emphasizes that sprinkler systems are effective for both property protection and life safety when fires occur. Regular inspection, testing and maintenance are required to ensure systems function properly.
- Electrical earthing provides a safe path for lightning and fault currents to protect humans and equipment.
- There are different types of earthing for different applications like LV systems, lighting, telecoms, and computers.
- Earthing can provide either Class I or Class II protection against electric shock.
- Factors that affect earth impedance include soil type and moisture, weather, electrode type and size, nearby utilities, and distance between electrodes.
- Common earthing arrangements include TN, TT, and IT systems. Measurement methods like Wenner and Schlumberger are used to determine soil resistivity which impacts earth impedance.
The document provides guidance on programming and designing commercial kitchen spaces. It emphasizes gathering information from clients about their menu, storage needs, staffing, and equipment requirements. Key components of kitchen design include clean/wash, food preparation, cooking, storage, service, and delivery areas. Designs must comply with international, federal, state and local codes regarding safety, accessibility and food handling. Floor plans should thoughtfully arrange these areas to support efficient food production flow.
The key considerations for designing a commercial kitchen are the service requirements, available space, and budget. A good design follows the workflow of delivery, storage, preparation, cooking, holding, serving, washing up, and waste disposal. It is important to assess risks, ensure proper equipment and space for each area, and consider environmental factors like ventilation and energy efficiency.
Electrical fires require a different approach than ordinary fires. Call the fire department immediately and turn off the appliance and unplug it. Smother the fire with a blanket or type C extinguisher. Bicarbonate of soda can also dampen a small electrical fire. Major causes of electrical fires are cooking appliances, wiring/cables, washing machines/dryers, lighting, and dishwashers. Regular PAT testing can help protect businesses from electrical fire risks.
This document discusses electrical grounding and earthing systems. It begins by introducing grounding and earthing, and distinguishing between ground and neutral conductors. It then describes different types of earthing systems according to the IEC standard, including TN, TT, and IT networks. The document also covers different types of grounding used in radio communications, AC power installations, and lightning protection. It discusses the concept of virtual ground and multipoint grounding. Overall, the document provides an overview of electrical grounding and earthing systems, their uses, and important concepts.
The Rosenberg Group produces axial and centrifugal fans for applications such as transformer cooling. They have 350 employees in Germany and 1400 worldwide. Their centrifugal fans come in sizes from 250-630mm and feature aluminum impellers and external rotor motors. Their axial fans range from 450-800mm and have sickle-shaped aluminum blades and external rotor motors. Both fan types are suited for transformer cooling applications as they help dissipate heat and cool the transformer, allowing for higher loads, improved efficiency, and longer life.
Fans for Compressor Cooling.
Gas compression for the generation of compressed air produces heat, which must be dissipated to protect the unit.
In sound-insulated screw compressors, energy-efficient radial fans from Rosenberg ensure the necessary cooling air. Normally, the waste heat is discharged into the open air via ducts.
Alternatively, it can be integrated into a recirculation or heat recovery system, especially in cold weather.
2005 ASME Power Conference Analysis of Turbine Cycle Performance Losses Using...Komandur Sunder Raj, P.E.
This document describes the application of entropy balance to evaluate losses in a sample turbine cycle. It discusses calculating performance based on the first law of thermodynamics and using entropy to determine the effectiveness of energy utilization and quantify losses. A sample turbine cycle is presented and sources of losses are examined, including in the boiler, turbine, feedwater heaters, piping, and boiler feed pump. Entropy increases are used to measure irreversibilities and losses at each component.
This document provides technical information about HERA® high-efficiency right angle drives. It begins with an overview of HERA® benefits such as up to 90% efficiency and energy savings compared to standard worm gear drives.
It then provides detailed selection information in 4 steps: 1) Use the power rating chart to select the appropriate basic HERA® model and ratio based on application horsepower, service factor, and output torque requirements. 2) Select the desired input type - C-face, coupled, or shaft input. 3) Select the required frame size. 4) Includes dimensional drawings and specifications for each HERA® model.
2005 ASME Power Conference Performance Considerations in Replacement of Low P...Komandur Sunder Raj, P.E.
The document discusses performance considerations for replacing low pressure turbine rotors in gas turbine power plants. It examines the original design of LP turbines, including annulus area, exhaust flow rates, and end loading levels. Charts show the original turbine data and design heat balance for a Westinghouse 44-inch LP turbine. The objectives are to evaluate performance gains from replacement programs and ensure objectives are met.
Waterfall Turbine Development Primer - UpdatedJason Rota
This document provides an overview of hydropower basics and Hydro Holdings LLC's water turbine system. It discusses the basic formula for hydropower production and key system components. Hydro Holdings has developed a modular cross-flow turbine design that has been piloted at two wastewater treatment plants. The design aims to be reasonably easy to manufacture and have components that can be swapped out. Charts and equations show how turbine output is determined by flow rate and head, with overall efficiencies around 80% at design flow rates.
Analysis and design of 15 storey office andMasroor Alam
This project involves the analysis and design of a 15-story office and commercial building using ETABS software. Key aspects of the project include modeling the building geometrically and with materials, running various load combinations and analysis types, designing structural elements like beams, columns, slabs, and shear walls, and evaluating serviceability requirements. The project demonstrates the modeling, analysis, and design process according to applicable codes.
Analysis and design of 15 storey office andMasroor Alam
This project involves the analysis and design of a 15-story office and commercial building using ETABS software. Key aspects of the project include modeling the building geometrically and with materials, running various load combinations and analysis types, designing structural elements like beams, columns, slabs, and shear walls, and evaluating serviceability requirements. The results presented include deflections, story drifts, reinforcement details for representative columns, beams, slabs, and shear walls that meet design code specifications.
The document discusses various hydraulic components including motors, gearboxes, winches, and track undercarriages. It provides specifications for multiple models of hydraulic motors, gearboxes, and winches. The models listed include the GN, NAM, LA2FE, and LA2FM series of hydraulic motors, the BFT series of track drives, KFB series of swing drives, and BFT-W series of winch drives.
The document discusses a proposed water supply project by V V Water Company. It outlines that the project would involve developing water resources from a well field with infrastructure to transport water via pipeline. It evaluates the project based on three criteria: deliverability, feasibility, and affordability. For deliverability, it indicates the water could be produced in large volumes continuously from the well field. For feasibility, it describes the infrastructure plan to transport water from the well field to the point of storage and sale. For affordability, it finds the cost of water from this project would be lower than competing systems and available regardless of conditions like drought.
This document provides an overview of the key information needed to perform a satellite link budget analysis. It discusses the various parameters that must be accounted for, such as location, frequency, antenna characteristics, rain attenuation levels, coupling and mispointing losses. Tables of rain attenuation values for different frequency bands and climatic zones are also presented. The document aims to explain all of the relevant factors that impact satellite communication links and must be considered in a link budget calculation.
Rosenberg Canada: Fans for Clean Rooms (Cleanrooms)Rosenberg Canada
The structural change, which is caused by the ever-increasing pace of technical progress, gives rise to more and more electronics-oriented companies. Dust and other contaminants in the air are increasingly becoming a problem for products that are more and more sensitive in these sectors. Companies with filling plants and the pharmaceutical industry are faced with the same complication due to hygiene regulations.
Filtering with the help of fans as a component or complete air handling units can eliminate these dust particles and debris in the air.
As a component for these requirements, free-running impellers with EC technology, in particular, are primarily distinguished by their capacity and their quiet and efficient operation - and all this in a confined space.
This document provides technical specifications for rooftop packaged air conditioning units with nominal cooling capacities ranging from 8.9 kW to 105.1 kW. It includes key performance data for each model such as cooling/heating capacities, power consumption, current draw, efficiency ratings, component details, dimensions, sound levels and other specifications. The units utilize R410a refrigerant and have centrifugal fans, direct or belt driven depending on size. Control systems include microprocessor controllers and thermal expansion valves.
The document summarizes the application of Six Sigma's DMAIC approach to improve the process capability of PVC pipe extrusion. It analyzes critical process parameters like feeder RPM, barrel zone temperatures, die zone temperatures, and haul off RPM using tools like correlation, regression, ANOVA, and t-tests. Significant parameters identified are feeder RPM, BZ3T, DZ2T, and DZ3T. The document proposes using Taguchi's method of parametric optimization to improve the process by setting control factor levels for the significant parameters.
2014 EPRI Conference Impact of Developments in HEI Correction Factors on Cond...Komandur Sunder Raj, P.E.
This document contains test results for different tube materials used in heat exchangers. It provides heat transfer coefficients and generator output values for Admiralty steel tubes, stainless steel, titanium, and other materials at varying circulation water inlet temperatures. Simulation results show that below 70°F there is virtually no change in generator output between materials, but above 70°F stainless steel and titanium perform better than Admiralty steel, with up to a 2 MW lower output for Admiralty steel between 80-90°F.
This document provides technical specifications for various types of bucket elevator chains and components. It includes details on central chains for centrifugal discharging bucket elevators such as chain type, pitch, dimensions, attachments, and average breaking load. Double strand chains are also specified with roller type, pitch, plate and pin dimensions, and average breaking load. Technical data is provided for buckets, sprockets, and other attachments. Installation and maintenance manuals are also referenced.
This document provides an analysis of energy usage at a power plant and recommendations for improving energy efficiency. It analyzes key performance metrics like turbine heat rate and auxiliary power consumption. It then provides several recommendations in areas like standardizing maintenance practices, improving boiler efficiency, reducing steam leakages, adopting new technologies like VFDs, managing reactive power, and reducing lighting consumption. Specific examples estimate energy and cost savings from installing VFDs on fans and replacing lighting with more efficient bulbs. The goal is to standardize operations and maintenance to maximize the efficiency and output of existing equipment.
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Cricket management system ptoject report.pdfKamal Acharya
The aim of this project is to provide the complete information of the National and
International statistics. The information is available country wise and player wise. By
entering the data of eachmatch, we can get all type of reports instantly, which will be
useful to call back history of each player. Also the team performance in each match can
be obtained. We can get a report on number of matches, wins and lost.
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Online train ticket booking system project.pdfKamal Acharya
Rail transport is one of the important modes of transport in India. Now a days we
see that there are railways that are present for the long as well as short distance
travelling which makes the life of the people easier. When compared to other
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of the railway database also plays a major role in the smooth running of this
system. The Online Train Ticket Management System will help in reserving the
tickets of the railways to travel from a particular source to the destination.
2. COMPUTATION:
1. Appliance Area (Mobile Hot Cabinet) = 5.75 ft x 2.3 ft
= 13.25 ft²
2. Qc = Area (ft²) x Thermal Updraft Vel. (fpm)
Mobile Hot Cabinet ; Qc = 13.25 ft² x 50 fpm = 662.5 Cfm
3. QSD = (Total Area of Hood – Total Area of Appliances) x 50 fpm
QSD = ( 6 ft x 3.28 ft ) – (13.25 ft² ) x 50 fpm
= 321.5 Cfm
4. QE = QC + QSD = 662.5 Cfm + 321.5 Cfm = 984 Cfm
5. QCF = QE x Hood Factor
From Table Hood Factor :
Single Island Hood, HF = 1.2
QCF = 984 Cfm x 1.2 = 1180 Cfm, Say use: 1200 Cfm
A. KITCHEN EXHAUST AIR FLOWRATE; (KEF-01)
KEF-01 = 1200 Cfm
B. KITCHEN MAKE-UP FAN AIR FLOWRATE; (KMF-01)
KMF-01 = 1200 Cfm x .80
KMF-01 = 960 Cfm
3. Inlet
Airflow
119/16 (294)
211/16
(535)
11/2 (38)
133/8
(340)
91/4
(235)
25
(635)
22
(559)
81/4 (210)
30
(762)
30
(762)
7
SAF-110
Do not select t
o
theleftofthissystem
curve
cfm
Model
Number
Fan
CFM
Static Pressure in inches wg
0.125 0.25 0.375 0.5 0.625 0.75 1 1.125 1.25 1.5
SAF-110
820
RPM 432 549
BHP 0.05 0.08
Sones 11.4 11.9
1000
RPM 476 579 672 755
BHP 0.07 0.11 0.14 0.17
Sones 10.0 11.7 11.3 10.5
1180
RPM 525 616 701 780 850
BHP 0.11 0.14 0.18 0.22 0.26
Sones 10.5 11.2 11.5 11.2 11.2
1360
RPM 577 660 736 809 878 941
BHP 0.15 0.19 0.23 0.28 0.32 0.37
Sones 11.2 11.0 11.4 11.4 11.8 12.7
1540
RPM 632 707 777 844 908 969 1082 1134 1192
BHP 0.21 0.25 0.30 0.35 0.40 0.45 0.55 0.60 0.66
Sones 12.0 11.7 11.7 11.8 12.7 13.7 15.2 18.3 19.5
1720
RPM 688 757 822 883 943 1001 1110 1162 1210 1307
BHP 0.28 0.33 0.38 0.43 0.48 0.54 0.65 0.71 0.77 0.89
Sones 13.1 12.8 12.4 12.8 13.9 14.9 17.9 18.9 19.9 22
1900
RPM 745 809 870 927 982 1036 1140 1189 1238 1328
BHP 0.37 0.42 0.48 0.53 0.59 0.65 0.77 0.83 0.90 1.02
Sones 14.2 14.1 13.7 14.5 15.4 16.4 18.6 19.5 20 23
2080
RPM 802 864 920 974 1026 1075 1174 1221 1266
BHP 0.47 0.53 0.59 0.65 0.71 0.77 0.90 0.97 1.04
Sones 15.5 15.7 15.9 16.5 17.3 18.2 20 21 21
2260
RPM 859 920 971 1023 1071 1119 1210
BHP 0.59 0.66 0.71 0.78 0.85 0.92 1.05
Sones 16.9 17.6 18.1 18.6 19.4 21 22
2440
RPM 918 976 1025 1073 1120
BHP 0.72 0.80 0.87 0.94 1.01
Sones 18.8 19.6 20 21 22
2620
RPM 977 1032 1080
BHP 0.88 0.97 1.04
Sones 21 22 23
MAXIMUM RPM = 1400
TIP SPEED = RPM x 2.91
MAXIMUM MOTOR FRAME SIZE = 145T
AVERAGE OUTLET VELOCITY = CFM/1.07
Damper Size = 14 x 14 (355 x 355)
Roof Opening = 161
/2 x 161
/2 (419 x 419)
Curb Cap Thickness = 0.052 (1)
^Approximate Unit Weight = 181 lb. (82 kg)
All dimensions in inches (millimeters).
^Weight shown is largest cataloged Open Drip Proof motor.
Performance certified is for installation type B: free inlet, ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a filter.
The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type B:
free inlet hemispherical sone levels.
4. Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings do not include the effects
of appurtenances (accessories). The sound ratings shown are loudness values in fan sones at 5 ft (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: Free inlet hemispherical sone levels. The AMCA Certified Ratings Seal applies to sone ratings only.
11
193
⁄8
(492)
287
⁄8
(733)
293
⁄4*
(756)
26
(660)
13
⁄4
(44)
USGF-140HP - Belt Drive
Model
Number
Motor
hp
Fan
rpm
CFM / Static Pressure in inches wg
0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75
USGF-140HP-4 1/4
895
CFM 331
BHP 0.06
Sones 6.1
1037
CFM 566
BHP 0.10
Sones 6.7
1179
CFM 733 563
BHP 0.13 0.14
Sones 8.9 9.2
1321
CFM 878 756 591
BHP 0.18 0.19 0.19
Sones 12.1 11.6 13.6
1465
CFM 1016 920 798 642
BHP 0.24 0.26 0.26 0.26
Sones 14.2 13.5 13.2 15.5
USGF-140HP-3 1/3
1605
CFM 1146 1063 965 846 704
BHP 0.31 0.33 0.34 0.34 0.34
Sones 15.2 14.4 14.2 14.0 15.2
USGF-140HP-5 1/2
1725
CFM 1256 1178 1098 999 879 747
BHP 0.38 0.40 0.42 0.43 0.43 0.42
Sones 16.1 15.4 15.0 14.9 14.7 15.7
1845
CFM 1363 1292 1219 1137 1042 924 800
BHP 0.46 0.48 0.50 0.52 0.52 0.52 0.51
Sones 17.0 16.6 16.2 16.0 15.9 15.6 16.1
USGF-140HP-7 3/4
1960
CFM 1463 1399 1330 1260 1176 1086 970 854
BHP 0.54 0.57 0.59 0.61 0.62 0.63 0.62 0.62
Sones 18.1 17.7 17.4 17.2 17.1 17.0 16.8 16.9
2035
CFM 1528 1468 1402 1335 1261 1175 1077 965 826
BHP 0.60 0.63 0.66 0.68 0.69 0.70 0.70 0.69 0.67
Sones 18.9 18.5 18.2 18.0 18.0 17.8 17.7 17.5 17.8
2110
CFM 1592 1536 1473 1409 1341 1262 1178 1073 965 804
BHP 0.67 0.70 0.72 0.75 0.77 0.78 0.78 0.78 0.77 0.73
Sones 19.8 19.3 19.1 19.0 18.9 18.8 18.6 18.5 18.3 20
Do
notselecttotheleftofthissystemcurve
H-
W.G.
MAXIMUM BHP AT A GIVEN RPM = (RPM/2285)3
MAXIMUM RPM = 2110
TIP SPEED (ft/min.) = RPM x 3.829
MAXIMUM MOTOR FRAME SIZE = 145T
AVERAGE DISCHARGE VELOCITY (FPM) = CFM/1.72
Roof Opening = 181/2 x 181/2 (470 x 470)
Windband Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 125 lb. (57 kg)
All dimensions in inches (millimeters).
*May be greater depending on motor.
^Weight shown is largest cataloged Open Drip Proof motor.
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