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Indoor air quality and heating, ventilation & air conditioning systemsin office buildingsLeung, Wai-yip., 梁偉業. January 1997 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
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Evaluation of indoor air quality in Hong KongLeung, Ho-yin, Henry., 梁浩賢. January 2000 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
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Natural space conditioning for a tall residential structureDevol, Jamie Ann January 1980 (has links)
Thesis (M.Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1980. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Bibliography: leaves 174-175. / by Jamie Devol. / M.Arch.
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Air distribution from ventilation ductsMacKinnon, Ian R. (Ian Roderick), 1964- January 1990 (has links)
A wooden, perforated, uniform cross-section duct was examined to determine the optimum levels of aperture ratio and fan speed with respect to uniformity of discharge. The optimum aperture ratio for the 8.54 m long duct was 1.0 with a uniformity coefficient of 90.28%. The fan speed had little effect on the uniformity of discharge. The friction factor was experimentally determined to be 0.048 for a non-perforated duct and this value was assumed to be the same for a perforated duct of similar construction. A kinetic energy correction factor was used to analyze the flow in the duct. Values for this correction factor were determined from experimental data. Values of the coefficient of discharge and the total duct energy were calculated. A mathematical model was proposed based on the conservation of momentum and the Bernoulli's equation. The model responded favourably and predicted the duct velocity nearly perfectly and slightly underestimated the total duct energy.
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Modelling of ducted ventilation system in agricultural structuresFu, Yan January 1991 (has links)
Air distribution ducts are used in the environmental control of livestock and poultry building as well as the conditioning of most agricultural produce. / In order to simplify the approach to the design of ventilation ducts, a mathematical equation has been derived to describe the average air velocity of a duct. / The primary objective of the research work was to test goodness of fit of an equation describing the average air velocity of perforated ventilation ducts, under balanced as well as unbalanced air distribution: $V = H sb{o}{X over L} + (V sb{L}-H sb{o}) {X sp2 over L sp2}$. / This equation was successfully tested using data measured from 14 ducts of constant cross-sectional area, built of wood or polyethylene with outlets of various shapes and aperture ratios. Results indicated that aperture ratio and distance along the duct are the two most significant factors influencing the average duct air velocity values, but material and outlet shape had little effect.
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Air distribution from ventilation ductsMacKinnon, Ian R. (Ian Roderick), 1964- January 1990 (has links)
No description available.
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Modelling of ducted ventilation system in agricultural structuresFu, Yan January 1991 (has links)
No description available.
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Systems engineering applied to the Terraset SchoolO'Neil, William John January 1979 (has links)
Systems Engineering was applied to Terraset, a school underground, heated and cooled via the sun. The Systems Engineering process (since it occurred after design) consisted of Needs Analysis, Functional Analysis, Test Requirements Analysis and System Life Cycle Cost Analysis. The school had never been Systems Engineered and the processes revealed a long list of requirements still lacking. The results of the thesis are applicable to a new design taking place at the Burke Center Elementary School. / M.S.
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Indoor air pathogens and HVAC systems in office buildingsLee, Kai-Yip, 李繼業 January 2004 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
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Indoor air quality management: a case study in Hong Kong office buildingsLam, Pui-fong, Kat., 林珮芳. January 2004 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
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