hvac systems design handbook free download pdf

... catsup are nonnewtonian fluids. Density ␳ : Mass per unit volume, lbm/ft 3 . Source: HVAC Systems Design 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 both closed and open systems. Static...

Ngày tải lên: 15/12/2013, 03:15

... 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 ... masking unwanted sound, is ran- dom sound in the speech interference range. Source: HVAC Systems Design 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 5 Downloaded...

Ngày tải lên: 15/12/2013, 03:15

Ngày tải lên: 26/01/2014, 14:20

Ngày tải lên: 26/01/2014, 14:20

... general, in-line pumps are used in small systems or secondary systems, such as freeze prevention loops. Base-mounted pumps are Design Procedures: Part 4 Downloaded from Digital Engineering Library ... ASHRAE Handbook, 2000 HVAC Systems and Applications, Chap. 14, ‘‘Medium- and High-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 4 189 3. ASME, Power Piping Code, ANSI / ASME B31.1-1995. 4. ASHRAE Handbook, 2000 HVAC Systems and Applications, Chap. 11, ‘‘District...

Ngày tải lên: 17/10/2013, 22:15

... website. 223 Chapter 8 Design Procedures: Part 6 Automatic Controls 8.1 Introduction HVAC systems are sized to satisfy a set of design conditions, which are selected to generate a maximum load. Because these design ... properly designed, operated, and maintained automatic control system is accurate and will provide economical operation of the HVAC system. Unfortunately, not all con- trol systems are properly designed, ... criteria have been satisfied can a suitable control system be implemented. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright...

Ngày tải lên: 20/10/2013, 16:15

... another discussion. The HVAC systems designer will recognize plants as po- tential areas of specialty experience as assignments and interest allow. References 1. ASHRAE Handbook, 2000 HVAC Systems and Equipment, ... ‘‘Medium and High Temperature Water Heating Systems. ’’ 2. ASHRAE Handbook, 1999 HVAC Applications, Chap. 33, ‘‘Thermal Storage.’’ Design Procedures: Part 5 Downloaded 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 5 Downloaded from Digital Engineering Library...

Ngày tải lên: 20/10/2013, 16:15

... aircraft where light weight and simplicity are important. Thermoelectric re- Source: HVAC Systems Design 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 ensure that they, and not the manufacturer, control the final system design. References 1. F. Beseler, ‘‘Scroll ... Air Conditioning Engineers, Inc., www.ashrae.org. Reprinted by permission from ASHRAE Handbook, 2000 HVAC Systems and Equipment, Chap. 34, Fig. 4.) Sizes range up to as high as 200 tons or more...

Ngày tải lên: 24/10/2013, 15:15

... ASHRAE Handbook, 2000 HVAC Systems and Equipment, Chap. 6, ‘‘Panel Heating and Cooling.’’ 6. ASHRAE Handbook, 1999 HVAC Applications, Chap. 32, ‘‘Solar Energy Use.’’ Equipment: Part 2 Downloaded ... other source, such as a process, an incinerator, or re- frigeration equipment Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... 10.15 Control of steam coil to prevent freezing. low freezing, the steam condensate or water in the preheating coil may freeze instantly if proper precautions are not taken. Freezing usually results in...

Ngày tải lên: 24/10/2013, 15:15

... Btu/h ϫϫ ϫϫ 3 5555 ft 0.075 lb 60 min 1059 Btu a ϭ 0.0011 lb /lb (11.2) wa Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... collection hoods and exhaust systems. Laboratory and industrial fume hoods require large exhaust air quantities. Sev- eral standards cover the design of some types of exhaust systems. 1,2 11.11 Smoke ... environmental air-handling systems for primary or supple- mentary smoke control is neither simple nor economical. There is a lack of good data on the design of adequate smoke control systems, and code...

Ngày tải lên: 28/10/2013, 22:15

... the primary service is interrupted. UPS systems are of interest and concern to the HVAC systems 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 Summary In building construction, HVAC design is interwoven ... website. 397 Chapter 12 Electrical Features of HVAC Systems 12.1 Introduction While most HVAC designers will have the support of a competent elec- trical design staff, it is important to understand...

Ngày tải lên: 07/11/2013, 19:15

... being of paramount importance to the relationship between owner and con- Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... Institute, MasterFormat. 4. ASHRAE Handbook, 2000 HVAC Systems and Equipment, Chap. 48, ‘‘Codes and Standards.’’ Design Documentation: Drawings and Specifications Downloaded from Digital Engineering ... product, which is the design. Early in the development of computer-aided design (CAD) techniques, it was felt that computer- Design Documentation: Drawings and Specifications Downloaded from Digital...

Ngày tải lên: 07/11/2013, 19:15

... construction, relieving the design office of any possible in- volvement, except to clarify a conflict in documents or a design error. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering ... building and its systems. 14.3.3 Observation of operation Many specifications require the HVAC contractor to certify in writing that the HVAC systems and controls are operating as designed and specified. ... project designer. 14.2 Participation during Construction Designer participation during construction and beyond varies greatly with design office practice and with the owner’s desires. Some design offices...

Ngày tải lên: 07/11/2013, 19:15

... 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. 439 Chapter 15 Technical Report Writing 15.1 Introduction An HVAC designer is almost certain to be faced with the need to write reports. The ability to produce ... available, ranging from three-ring looseleaf styles to mechanical clip systems to standard bound-book Technical Report Writing Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright...

Ngày tải lên: 15/12/2013, 03:15

... top of a hill has potential energy with respect to the bottom of the hill. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... knowledge helps an HVAC designer to identify reality among the often overstated claims of overenthusiastic inventors and salespeople. The mathemat- ical relationships of thermodynamics allow the designer ... energy input becomes a benefit. Q ϩ Q evap in COP ϭϭCOP ϩ 1 heat cool Q in In heat pump systems, the system designer should again try to work with the smallest possible thermal lift to get maximum...

Ngày tải lên: 15/12/2013, 03:15

... 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 ... is useful in determin- ing the location where moisture condensation or freezing will take Engineering Fundamentals: Part 3 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.) A 1 ϭ face area of smaller surface, ft 2 T 1 , T 2 ϭ...

Ngày tải lên: 15/12/2013, 03:15

... can hold at a specified temperature and pressure. The properties of moist Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... very brief. The subject is very important to the HVAC designer, and further study of Ref. 1 and other sources is recommended. Every set of HVAC design calculations should include one or more psychrometric ... wet-bulb temperatures and rela- tive humidity or dew point temperature. 19.5 HVAC Processes on the Psychrometric Chart Any HVAC process may be plotted on the chart if the end state points are known...

Ngày tải lên: 15/12/2013, 03:15

Ngày tải lên: 15/12/2013, 03:15

Ngày tải lên: 26/01/2014, 14:20

Ngày tải lên: 26/01/2014, 14:20