By ASHRAE Press
The air con guide was once written to help entry-level engineers within the layout of air-conditioning structures. it's also suable - in conjuction with basic HVAC&R resourcee fabric - as a senior- or graduate-level textual content for a college path in HVAC process layout. The handbook was once written to fill the void among concept and perform - to bridge the space among real-world layout practices and the theoretical caluclations and analytical approaches or at the layout of parts.
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Additional info for Air Conditioning System Design Manual, Second Edition
NFPA. 2006b. NFPA Standard 92A-2006, Recommended Practice for Smoke-Control Systems. Quincy, MA: National Fire Protection Association. NFPA. 2006c. NFPA Standard 101-2006, Life Safety Code. Quincy, MA: National Fire Protection Association. NIST. 1996. Handbook 135, Life-Cycle Costing Manual for the Federal Energy Management Program. Gaithersburg, MD: National Institute of Standards and Technology. USAF. 1988. AFM 88-29, Engineering Weather Data. S. Government Printing Office. USGBC. 2005. LEED-NC (Leadership in Energy and Environmental Design—New Construction).
Although MRT conditions usually result from architectural decisions (such as glazing type or wall/roof R-values), MRT can drastically impact occupant comfort and must be considered during the design of HVAC systems. 3 Zoning Considerations Even when appropriate design conditions (primarily temperatures) are selected, they are achievable only through the actions of appropriate space control instrumentation and then only within variations determined by the control band of that instrumentation (see Chapter 10).
Minute concentrations of certain fungi and other impurities can cause serious discomfort and impairment in sensitive individuals while not affecting most occupants. Standards for vapors specify a quantity of pollutant per unit volume of air, in parts per million (ppm). Standards for particles often specify the mass concentration of particles expressed in micrograms per cubic meter (µg/m3). The standards typically include all particle sizes—the total suspended particulate concentration (TSP). Large particles are filtered by the nasal passages and generally cause no adverse physiological response unless they are allergenic or pathogenic.