Xem 1-7 trên 7 kết quả Cooling coil
  • The Trane indoor make-up air handler product line is a packaged air, heating and cooling system, suitable for heating, cooling, ventilating and make-up air applications. These units are designed for indoor use only. Unit sizes range from 900 to 9,800 cfm (0.4-4.6 cu m/s) with 1/2 to 15 hp motor capabilities. These units are available with inputs from 100,000 Btu/h to 1,200,000 Btu/h (29.3 to 351.4 kW). Duct furnaces are AGA and CGA certified for safety and performance with a range of 100,000 Btu/h input to 400,000 Btu/h (29.3 to 117.1 kW) input per duct furnace.

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  • The energy crisis of the mid 1970’s gave birth to a movement to conserve energy. Over the ensuing years much has been done to reduce the energy consumption of new and existing buildings. Lighting efficiency has improved so much that today we use ½ the wattage without sacrificing lumens. Improved construction methods, better insulation and high efficiency windows have also helped reduce energy consumption. However, all of these measures have resulted in a reduction of Sensible heat gains while Latent heat gains have increased.

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  • Often practitioners of testing, accelerated testing, reliability testing, computer modeling and other validation tools focus on the science and math of the tool: what is innovative and cutting edge (which means “cool and fun to work on”), instead of the reason for using the tools. In this sense, testing and computer modeling engineers are a lot like kids—if you give a kid a hammer, everything will need pounding; give an engineer some neat new test method, math algorithm, or computer tool and every project will need it....

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 11 HEAT TRANSFER AND HEAT EXCHANGE Selecting Type of Heat Exchanger for a Specific Application 11.1 Shell-and-Tube Heat Exchanger Size 11.4 Boiler-Tube Steam-Generating Capacity 11.20 Heat Exchanger Actual Temperature Difference 11.6 Fouling Factors in Heat-Exchanger Sizing and Selection 11.8 Heat Transfer in Barometric and Jet Condensers 11.10 Selection of a Finned-Tube Heat Exchanger 11.12 Spiral-Type Heating-Coil Selection 11.15 Shell-and-Tube Heat Exchanger Design Analysis 11.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 16 HEATING, VENTILATING, AND AIR CONDITIONING ECONOMICS OF INTERIOR CLIMATE CONTROL 16.2 Equations for Heating, Ventilation, and Air-Conditioning Calculations 16.2 Required Capacity of a Unit Heater 16.58 Determining Cooling-Tower Fan Horsepower Requirements 16.12 Choosing an Ice Storage System for Facility Cooling 16.13 Annual Heating and Cooling Energy Loads and Costs 16.22 Heat Recovery Using a Run-Around System of Energy Transfer 16.24 Rotary Heat Exchanger Energy Savings 16.

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  • When the peak cooling load and latent heat requirements are appropriate, this less expensive type of equipment is used. In this case the air quantity is determined in a different way. The peak cooling load is first computed as 1.3 times the peak sensible cooling load for the structure to match the coil SHF. The equipment is then selected to match the peak cooling load as closely as possible. The air quantity is specified by the manufacturer for each unit and is about 400 cfm/ton or 0.0537 m 3 /sec • kW. The total air quantity is then divided among...

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  • This equipment usually has a capacity of less than 10 tons or 35 kW. When the peak cooling load and latent heat requirements are appropriate, this less expensive type of equipment is used. In this case the air quantity is determined in a different way. The peak cooling load is first computed as 1.3 times the peak sensible cooling load for the structure to match the coil SHF. The equipment is then selected to match the peak cooling load as closely as possible.

    pdf19p liemthanh 16-12-2009 38 4   Download

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