Chapter hvac engineering Fundamentals: Part 1 Introduction

Design Procedures: Part 1
79
3.9
Other Loads
There are some additional factors which contribute to the cooling and
heating loads. Among these are fan and pump work as well as duct
and piping losses. These are discussed in subsequent chapters.
In any case, the first law of thermodynamics prevails. Energy is
neither created or destroyed. If energy moves into or out of the build-
ing, it must be accounted for and managed.
3.10
Summary
In this chapter, cooling and heating loads have been discussed, with
emphasis on manual procedures and the elements of the loads. The
principal source of information on this subject is the ASHRAE Hand-
book
Fundamentals,
to which the interested reader is referred for a
more detailed discussion. All load calculations, whether manual or
computerized, should be carefully checked for consistency and reason-
ableness. This requires the application of judgment, common sense,
and experience.
References
1. ASHRAE Handbook,
2001 Fundamentals,
Chap. 27, ‘‘Climatic Design Information.’’
2. Ibid., Chap. 29 ‘‘Non Residential Air Conditioning, Cooling, and Heating Load.’’
3. Ibid., Chap. 29 ‘‘Non Residential Air Conditioning, Cooling, and Heating Load.’’
4. Ibid., Chap. 30 ‘‘Fenestration.’’
5. T. C. Min, ‘‘Winter Infiltration through Swinging Door Entrances in Multistory Build-
ings,’’
ASHRAE Transactions,
vol. 64, 1958, p. 421.
6. R. W. Haines, ‘‘Selecting a Delta
T
for an AHU,’’
Heating / Piping / Air Conditioning,
Nov. 1968, p. 210.
7. ASHRAE Standard 62-2001,
Ventilation for Acceptable Indoor Air Quality
.
Design Procedures: Part 1
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)
Copyright © 2004 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.

---

Design Procedures: Part 1
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)
Copyright © 2004 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.

---