... ASHRAE Handbook, 2000 HVACSystems and Applications, Chap. 14, ‘‘Medium- andHigh-Temperature Water-Heating Systems. ’’6. Ingersoll-Rand, Cameron Hydraulic Data, Woodcliff Lake, N.J., 1988. Design ... the Terms of Use as given at the website. Design Procedures: Part 4 1893. ASME, Power Piping Code, ANSI / ASME B31.1-1995.4. ASHRAE Handbook, 2000 HVACSystems and Applications, Chap. 11, ‘‘District ... general, in-line pumps are used in small systems or secondary systems, such as freeze prevention loops. Base-mounted pumps are Design Procedures: Part 4Downloaded from Digital Engineering Library...
... website.223Chapter8 Design Procedures: Part 6Automatic Controls8.1 Introduction HVAC systems are sized to satisfy a set of design conditions, whichare selected to generate a maximum load. Because these design ... properly designed, operated,and maintained automatic control system is accurate and will provideeconomical operation of the HVAC system. Unfortunately, not all con-trol systems are properly designed, ... criteria have been satisfied can asuitable control system be implemented.Source: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright...
... anotherdiscussion. The HVACsystems designer will recognize plants as po-tential areas of specialty experience as assignments and interest allow.References1. ASHRAE Handbook, 2000 HVACSystems and Equipment, ... ‘‘Medium and High TemperatureWater Heating Systems. ’’2. ASHRAE Handbook, 1999 HVAC Applications, Chap. 33, ‘‘Thermal Storage.’’ Design Procedures: Part 5Downloaded from Digital Engineering Library ... Systems and Equipment, Chap. 7, ‘‘Cogeneration Systems ’; Chap. 8, ‘‘Applied Heat Pump and Heat Recovery Systems ’; Chap. 10, Design Procedures: Part 5Downloaded from Digital Engineering Library...
... aircraftwhere light weight and simplicity are important. Thermoelectric re-Source: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... detailed and helpful informa-tion to assist designers. However, designers must take care to ensurethat they, and not the manufacturer, control the final system design. References1. F. Beseler, ‘‘Scroll ... Air Conditioning Engineers,Inc., www.ashrae.org. Reprintedby permission from ASHRAE Handbook, 2000 HVAC Systems and Equipment, Chap. 34, Fig.4.)Sizes range up to as high as 200 tons or more...
... ASHRAE Handbook, 2000 HVACSystems and Equipment, Chap. 6, ‘‘Panel Heatingand Cooling.’’6. ASHRAE Handbook, 1999 HVAC Applications, Chap. 32, ‘‘Solar Energy Use.’’Equipment: Part 2Downloaded ... other source, such as a process, an incinerator, or re-frigeration equipmentSource: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... heating systems. For a full discussionof solar heating design, see the chapter on solar energy in theASHRAE Handbook. 6Do not take this brief paragraph as understatedEquipment: Part 2Downloaded...
... Btu/h ϫϫ ϫϫ35555 ft 0.075 lb 60 min 1059 Btuaϭ 0.0011 lb /lb (11.2)waSource: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... collection hoods and exhaust systems. Laboratoryand industrial fume hoods require large exhaust air quantities. Sev-eral standards cover the design of some types of exhaust systems. 1,211.11 Smoke ... environmental air-handling systems for primary or supple-mentary smoke control is neither simple nor economical. There is alack of good data on the design of adequate smoke control systems, and code...
... the primary service is interrupted.UPS systems are of interest and concern to the HVACsystems de-signer in two ways:Electrical Features of HVAC Systems Downloaded from Digital Engineering Library ... of remote origin. The HVAC designer must work closely with the electrical designer to sat-isfy the needs of both disciplines.12.13 SummaryIn building construction, HVACdesign is interwoven ... website.397Chapter12Electrical Featuresof HVAC Systems 12.1 IntroductionWhile most HVAC designers will have the support of a competent elec-trical design staff, it is important to understand...
... being ofparamount importance to the relationship between owner and con-Source: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... Institute, MasterFormat.4. ASHRAE Handbook, 2000 HVACSystems and Equipment, Chap. 48, ‘‘Codes andStandards.’’ Design Documentation: Drawings and SpecificationsDownloaded from Digital Engineering ... product, which is the design. Early in the development ofcomputer-aided design (CAD) techniques, it was felt that computer- Design Documentation: Drawings and SpecificationsDownloaded from Digital...
... construction, relieving the design office of any possible in-volvement, except to clarify a conflict in documents or a design error.Source: HVACSystemsDesign Handbook Downloaded from Digital Engineering ... building and its systems. 14.3.3 Observation of operationMany specifications require the HVAC contractor to certify in writingthat the HVACsystems and controls are operating as designed andspecified. ... project designer.14.2 Participation during ConstructionDesigner participation during construction and beyond varies greatlywith design office practice and with the owner’s desires. Some design offices...
... the final report will re-late strongly to the clarity of this definition.Source: HVACSystemsDesign 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 ... available, ranging from three-ringlooseleaf styles to mechanical clip systems to standard bound-bookTechnical Report WritingDownloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright...
... catsup are nonnewtonian fluids.Density: Mass per unit volume, lbm/ft3.Source: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... 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 ... 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...
... top of a hill has potentialenergy with respect to the bottom of the hill.Source: HVACSystemsDesign 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 ... energy input becomes a benefit.Q ϩ Qevap inCOP ϭϭCOP ϩ 1heat coolQinIn heat pump systems, the system designer should again try to workwith the smallest possible thermal lift to get maximum...
... used, or for absolute temperatures the Rankine (ЊR) scale:ЊR ϭ ЊF ϩ 460Њ.Source: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... and Air Conditioning Engineers, Inc.,www.ashrae.org. Reprinted by permission from ASHRAE Handbook, 1999 HVAC Ap-plications, Chap. 32, Fig. 3.)A1ϭ face area of smaller surface, ft2T1, T2ϭ ... fundamentals,particularly as they apply to HVAC. For a detailed, rigorous treat-ment, the reader should refer to a good college-level text on heat trans-fer or to the ASHRAE Handbook. 118.2 Heat Transfer...
... canhold at a specified temperature and pressure. The properties of moistSource: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... very brief. The subject isvery important to the HVAC designer, and further study of Ref. 1 andother sources is recommended. Every set of HVACdesign calculationsshould include one or more psychrometric ... 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...
... from ASHRAE Hand-book, 1987 HVACSystems 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 ... masking unwanted sound, is ran-dom sound in the speech interference range.Source: HVACSystemsDesign Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright ... 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...