... 1lb w ⌬w ϭ 30,000 Btu/h ϫϫ ϫϫ 3 5555 ft 0.075 lb 60 min 1059 Btu a ϭ 0.0 011 lb /lb (11. 2) wa Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) ... 367 Chapter 11 Equipment: Part 3 Air-Handling Systems 11. 1 Introduction By definition, air conditioning involves control of the air ... (Fig. 11. 8)...
... the HVAC designer is enthalpy, particularly the enthalpy of evaporation, or the latent heat of vaporization h fg . This is the amount of heat, in Btu per pound, which Design Procedures: Part ... pressures allow smaller piping but create piping expansion and support problems. In- Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.d...
... 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 sy...
... Design Procedures: Part 5 Central Plants 7.1 Introduction The design and construction of central plants for heating and cooling is one of the most challenging and interesting aspects of the HVAC ... plant, traffic, noise, and emis- sions from the more densely populated areas. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.dig...
... 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) ... 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 h...
... Equipment: Part 2 Heating 10.1 Introduction Heating is the first word in the acronym HVAC. It is the most impor- tant part because without heating mankind would have difficulty in surviving. Proper design ... other source, such as a process, an incinerator, or re- frigeration equipment Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill...
... over into plant
design considerations.
12 .11 Lighting Systems
Lighting design ranges from following a cookbook to a high-level art
form. It is not the responsibility of the HVAC designer, but lighting
imposes ... website.
406 Chapter Twelve
1. UPS systems may be a useful, even required component of a critical
HVAC service and will be included in the HVAC and electric system
d...
... 411
Chapter
13
Design Documentation:
Drawings and Specifications
13.1 Introduction
Design documents evolve from and include the designer’s calculations,
equipment ... identified as 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)...
... 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 ... during 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 Handboo...
... 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 ... 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 produc...