Tài liệu HVAC Systems Design Handbook part 17 pptx

... website.453Chapter 17 Engineering Fundamentals: Part 2Thermodynamics 17. 1 IntroductionThermodynamics is an aspect of physics which deals with the energycharacteristics of materials and with the behavior of systems ... the top of a hill has potentialenergy with respect to the bottom of the hill.Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... knowledgehelps an HVAC designer to identify reality among the often overstatedclaims of overenthusiastic inventors and salespeople. The mathemat-ical relationships of thermodynamics allow the designer...

Tài liệu HVAC Systems Design Handbook part 15 pptx

... value of the ﬁnal report will re-late strongly to the clarity of this deﬁnition.Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... of Use as given at the website.439Chapter15Technical Report Writing15.1 IntroductionAn HVAC designer is almost certain to be faced with the need to writereports. The ability to produce ... FifteenFigure 15.3Report organization. Note that ﬁgures and tables for each part of the reportgo behind the text for that part. techniques. Almost any binding system which delivers a neat and de-sirable...

Tài liệu HVAC Systems Design Handbook part 16 pdf

... nearly every aspect of HVAC sys-tems design. Pumps, fans, coils, heat exchangers, refrigeration sys-tems, process systems, boilers, deaerators, water softeners and treat-ment systems, water supply ... Bloodand catsup are nonnewtonian ﬂuids.Density␳: Mass per unit volume, lbm/ft3.Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... piping and duct systems. It requires attention to differences in elevation for pumping of ‘‘open’’ systems and teaches us to recognize static-pressure concerns in bothclosed and open systems. Static...

Tài liệu HVAC Systems Design Handbook part 18 docx

... is used, or for absolute temperatures the Rankine (ЊR) scale:ЊR ϭ ЊF ϩ 460Њ.Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... website.459Chapter18Engineering Fundamentals: Part 3Heat Transfer18.1 IntroductionThis chapter presents a basic overview of heat transfer fundamentals,particularly as they apply to HVAC. For a detailed, rigorous ... conduction between air particles. Convection may benatural or free convection, due to differences in density, or it may beforced by mechanical means such as fans or pumps.An HVAC process illustrating...

Tài liệu HVAC Systems Design Handbook part 19 doc

... very brief. The subject isvery important to the HVAC designer, and further study of Ref. 1 andother sources is recommended. Every set of HVAC design calculationsshould include one or more psychrometric ... water it canhold at a speciﬁed temperature and pressure. The properties of moistSource: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... wet-bulb temperatures and rela-tive humidity or dew point temperature.19.5 HVAC Processes on thePsychrometric ChartAny HVAC process may be plotted on the chart if the end state pointsare known...

Tài liệu HVAC Systems Design Handbook part 20 pdf

... from ASHRAE Hand-book, 1987 HVAC Systems and Applications; subsequent edi-tions are similar, i.e., 2001 Fundamentals, Chap. 7, Table 11.of the HVAC systems, the HVAC designer is not generally ... ASHRAE Handbook, 2001 Fundamentals, Chap. 7, ‘‘Sound and Vibration.’’2. ASHRAE Handbook, 1999 HVAC Applications, Chap. 46, ‘‘Sound and Vibration Con-trol.’’Engineering Fundamentals: Part 5Downloaded ... website.485Chapter20Engineering Fundamentals: Part 5Sound and Vibration20.1 IntroductionThe HVAC designer cannot neglect consideration of the sound andvibration generated by HVAC equipment. This chapter brieﬂy...

Tài liệu HVAC Systems Design Handbook part 21 doc

... responsibilityof the architect, but the HVAC designer must be aware of conditionsthat might lead to problems, such as mold, which might be aggravatedor alleviated by HVAC design. 21.2 Negative Effects ... responsibility resides with the designer. This book has dis-cussed all of the facets of designing a good HVAC system, but we havenot talked about the other inﬂuences on air quality. As designers, wemust ... smoke detection, orirradiation systems. 21.5.1 CommissioningAll 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...

Tài liệu HVAC Systems Design Handbook part 1 pdf

... objective. What is the end result desired? For HVAC the objective usually is to provide an HVAC system which will controlSource: 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 HVAC system designer ... pursestrings.A word of caution. Energy conservation is important in HVAC de-sign, but it is not the purpose or function of the HVAC system. HVAC systems are intended to provide comfort, or a controlled...

Tài liệu HVAC Systems Design Handbook part 2 ppt

... given at the website. HVAC Engineering Fundamentals: Part 2 192.7 Conceptual Design The problem-solving process of Chap. 1 should be a prelude to estab-lishing any HVAC design concept. In most ... HVAC systems shouldbe considered, to allow zoning. These criteria extend to apartmentsand hotel or motel guest rooms. First cost and operating cost are con- HVAC Engineering Fundamentals: Part ... level.2.4 HVAC CyclesFigure 2.1 is a schematic representation of an elementary mechanicalcooling cycle. While dehumidiﬁcation is not an essential part of the HVAC Engineering Fundamentals: Part...

Tài liệu HVAC Systems Design Handbook part 3 docx

... Engineers,Inc., www.ashrae.org. Abstracted by permission from ASHRAE Handbook, 1985 Fundamentals, Chap.27, Table 13, Part A. Design Procedures: Part 1Downloaded from Digital Engineering Library @ McGraw-Hill ... complexity andaccuracy. Most can be run on small personal computers while someSource: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... Engineers,Inc., www.ashrae.org. Reprinted by permission from ASHRAE Handbook, 1997 Fundamentals, Chap.29, Table 29. Design Procedures: Part 1Downloaded from Digital Engineering Library @ McGraw-Hill...

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