Tài liệu HVAC Systems Design Handbook part 2 ppt

... level. 2. 4 HVAC Cycles Figure 2. 1 is a schematic representation of an elementary mechanical cooling cycle. While dehumidification is not an essential part of the HVAC Engineering Fundamentals: Part 2 Downloaded ... 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- lis...

Ngày tải lên: 26/01/2014, 14:20

... clarity of this definition. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 20 04 The McGraw-Hill Companies. ... problem and its possible solutions. Thus, the problem-solving pattern outlined in Sec. 1 .2 applies. 15 .2 Organization of a Report Figure 15.1 shows a typical report outline. T...

Ngày tải lên: 15/12/2013, 03:15

... bottom of the hill. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 20 04 The McGraw-Hill Companies. ... 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 17 .2 Thermodynamics Terms One p...

Ngày tải lên: 15/12/2013, 03:15

... 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, ... unit volume, lbm/ft 3 . Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 20 04 T...

Ngày tải lên: 15/12/2013, 03:15

... scale: ЊR ϭ ЊF ϩ 460Њ. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 20 04 The McGraw-Hill Companies. ... Inc., www.ashrae.org. Reprinted by permission from ASHRAE Handbook, 1999 HVAC Ap- plications, Chap. 32, Fig. 3.) A 1 ϭ face area of smaller surface, ft 2 T 1 , T 2 ϭ absolute (...

Ngày tải lên: 15/12/2013, 03:15

... properties of moist Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 20 04 The McGraw-Hill Companies. ... 29 . 92 inHg. The partial pressure of water vapor is Engineering Fundamentals: Part 4 Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Co...

Ngày tải lên: 15/12/2013, 03:15

... from ASHRAE Hand- book, 1987 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 ... 485 Chapter 20 Engineering Fundamentals: Part 5 Sound and Vibration 20 .1 Introduction The HVAC designer cannot neglect consideration of the sound and vibration generated by HVA...

Ngày tải lên: 15/12/2013, 03:15

... the architect, but the HVAC designer must be aware of conditions that might lead to problems, such as mold, which might be aggravated or alleviated by HVAC design. 21 .2 Negative Effects of Poor ... gaseous, particulate, bacterial and allergen contaminants; as well as air movement within occupied spaces in order to provide a comfortable and healthy environment. Source: HVAC Systems...

Ngày tải lên: 15/12/2013, 03:15

... objective. What is the end result desired? For HVAC the objective usually is to provide an HVAC system which will control Source: HVAC Systems Design Handbook Downloaded from Digital Engineering ... impact on the design of HVAC systems. Particular codes are sufficiently diverse in their adoption and im- plementation that it is unwise for this book to list any specifics. The H...

Ngày tải lên: 26/01/2014, 14:20

... diffuse: Summer: 45–75 Btu/h/ft 2 Winter: 10–30 Btu/h/ft 2 Ⅲ East and west walls—all north latitudes fall in a range of 21 5 24 5 Btu/h/ft 2 Design Procedures: Part 1 Downloaded from Digital Engineering ... website. 55 TABLE 3 .22 Shading Coefficients for Single Glass with Indoor Shading by Venetian Blinds or Roller Shades 3 32 1 4 1 4 1 2 1 2 1 8 1 8 3 16, 7 32 3 16, 1 4 3...

Ngày tải lên: 26/01/2014, 14:20