Download e-book for kindle: Air Conditioning Principles and Systems An Energy Approach by Edward G. Pita P.E.

By Edward G. Pita P.E.

ISBN-10: 0130928720

ISBN-13: 9780130928726

Utilizing not less than arithmetic, this article explores the basic ideas of air-con and their program to structures, explaining all thoughts in a transparent, functional demeanour. makes a speciality of difficulties and examples quite often encountered at the task.

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8 Relations among temperature scales. 8 Fahrenheit There are also two absolute temperature scales. These take the value 0 for the lowest temperature that can exist. They are called the Rankine (R) and Kelvin (K) temperature scales. S. sysfem, with the difference in size between each degree the same as Fahrenheit. The Kelvin is used in the SI system with the difference between each degree equal to Celsius. lOd) Rankine Celsius Kelvin 212 F 672 R 100e 373 K 32 F 492 R OC 273 K OF 460 R Absolute zero -460 F O R - - 273 C OK PHYSICAL PRINCIPLES Potential energy is the stored energy a body has due to its position, or elevation.

What are the major components of a hydronic heating system and a hydronic cooling system" 6. Sketch a typical all-air air conditioning system and name each component. 7. What are the indoor environmental conditions that affect human comfort? IS 8. Using a sketch, describe the building design team's organization and responsibilities. 9. Using a sketch, describe the building construction team's organization and responsibilities. 10. What do the terms design-build and fast tracking mean? 1 Sketch an environmental control system that provides heating and ventilating, but not cooling or humidity control.

We will now examine what changes occur at different pressures. 7 psia. 9 psia. 17 represents the same heating process, or cooling if done in reverse. When the water reaches 212 F (e) and more heat is added, it does not boil, but the temperature continues to rise. When the"temperature reaches 240 F (d), however, the boiling process begins and the temperature remains constant until the liquid has completely evaporated. This shows that the temperature at which the water boils changes with pressure.

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Air Conditioning Principles and Systems An Energy Approach by Edward G. Pita P.E.


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