Tài liệu HVAC Systems Design Handbook part 1 pdf

... reserved. Any use is subject to the Terms of Use as given at the website. 1 Chapter 1 HVAC Engineering Fundamentals: Part 1 1 .1 Introduction This chapter is devoted to ‘‘fundamental’’ fundamentals—certain ... found useful: 1. Define the objective. What is the end result desired? For HVAC the objective usually is to provide an HVAC system which will control Source: HVAC Syst...

Ngày tải lên: 26/01/2014, 14:20

... 447 Chapter 16 Engineering Fundamentals: Part 1 Fluid Mechanics 16 .1 Introduction Fluid mechanics is a fundamental branch of civil, chemical, ... it cannot be destroyed, that it can be ac- counted for. See Fig. 16 .2. 22 V Ϫ V 1 12 ϩ g(h Ϫ h ) ϩ (P Ϫ P ) ϭ work ϩ Q 2 1 2 1 in in 2 ␳ where V ϭ velocity, g ϭ gravitational constant, h ϭ elevation, ... for a pipe ␮ Reynolds number...

Ngày tải lên: 15/12/2013, 03:15

... from ASHRAE Hand- book, 19 87 HVAC Systems and Applications; subsequent edi- tions are similar, i.e., 20 01 Fundamentals, Chap. 7, Table 11 . of the HVAC systems, the HVAC designer is not generally ... ASHRAE Handbook, 20 01 Fundamentals, Chap. 7, ‘‘Sound and Vibration.’’ 2. ASHRAE Handbook, 19 99 HVAC Applications, Chap. 46, ‘‘Sound and Vibration Con- trol.’’ Engineering Fu...

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... the website. 81 Chapter 4 Design Procedures: Part 2 General Concepts for Equipment Selection 4 .1 Introduction The purpose of this chapter is to outline the criteria used in the HVAC system and ... difficult and require a thorough inquiry by the HVAC de- signer into the process and its needs. Until the process is fully under- Source: HVAC Systems Design Handbook Downloaded f...

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... 439 Chapter 15 Technical Report Writing 15 .1 Introduction An HVAC designer is almost certain to be faced with the need to write reports. ... in Sec. 1. 2 applies. 15 .2 Organization of a Report Figure 15 .1 shows a typical report outline. There may be additional topics, but these are the essential items in any report. Section 1 is sometimes ... value of the final report will re- l...

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... 453 Chapter 17 Engineering Fundamentals: Part 2 Thermodynamics 17 .1 Introduction Thermodynamics is an aspect of physics which deals with the energy characteristics of materials and with the behavior of systems ... those who want greater detail, Chap. 1 of the ASHRAE Handbook Fundamentals is one presentation writ- ten at a college upper-division or graduate-student level. 1, 2 1...

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... equation is 1 ϭ R ϩ R ϩ R ϩ ⅐⅐⅐ϩ R (18 .4) 12 3 n U Because resistance is the reciprocal of conductance or conductivity, a more specific form of the equation is 11 xx 111 1 n ϭϩ ϩ⅐⅐⅐ϩϩ ϩ⅐⅐⅐ϩϩ (18 .5) Uf ... 459 Chapter 18 Engineering Fundamentals: Part 3 Heat Transfer 18 .1 Introduction This chapter presents a basic overview of heat transfer fundamentals, particularly as they apply...

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... examples in Secs. 10 .19 .2 and 10 .19 .3. 19 .5.6 Chemical dehumidification This process is described in Sec. 11 .7.2. 19 .6 The Protractor on the ASHRAE Psychrometric Chart Figure 19 .1 includes a protractor ... the website. 480 Chapter Nineteen Figure 19 .6 Adiabatic saturation process. Figure 19 .7 Adiabatic saturation. t Ϫ t db db 12 Eff ϭ (19 .4) t Ϫ t db wb 11 The evaporati...

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... or irradiation systems. 21. 5 .1 Commissioning All of our design efforts are of no value if the IAQ system is not con- structed and commissioned as designed. See the section on commis- sioning in Chap. 14 . ... gaseous, particulate, bacterial and allergen contaminants; as well as air movement within occupied spaces in order to provide a comfortable and healthy environment. Source: HVA...

Ngày tải lên: 15/12/2013, 03:15

... the HVAC system: to provide a suitable environment for comfort or for a process. References 1. ASHRAE Handbook, 20 01 Fundamentals, p. 8 .12 . 2. Ibid., p. 8 .19 . 3. Ibid., Chap. 6. 4. ASHRAE Handbook, ... given at the website. HVAC Engineering Fundamentals: Part 2 19 2.7 Conceptual Design The problem-solving process of Chap. 1 should be a prelude to estab- lishing any HVAC...

Ngày tải lên: 26/01/2014, 14:20