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Evaporative Air-Conditioning: Applications for by Gert Jan Bom, Robert Foster, Ebel Dijkstra, Marja Tummers PDF

By Gert Jan Bom, Robert Foster, Ebel Dijkstra, Marja Tummers

ISBN-10: 0821343343

ISBN-13: 9780821343340

'Under the perfect stipulations and functions, evaporative air-conditioning (EAC) applied sciences provides first-class cooling and air flow with minimum strength consumption.'

Evaporative air-conditioning applied sciences are getting used more and more in residential and advertisement functions world wide. EAC applied sciences, which depend on water as a coolant instead of on chemical refrigerants, are affordable to supply and use and feature vital environmental advantages. This paper introduces the technical facets of EAC, studies EAC's scope of software, and surveys the categorical weather conditions lower than which EAC can be utilized such a lot successfully in industrialized and constructing international locations.

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Additional info for Evaporative Air-Conditioning: Applications for Environmentally Friendly Cooling

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2. Typical Investment Costs for Evaporative Air-Conditioning in India 1,000800 Cei- 600 400 - i 2000 20 EAC 20AC 60 EAC 60 AC 100EAC 100AC Room size in sq m for EAC and AC Installation cost Cost cooler Source:R. Foster. 3. States Typical Life-Cycle Costs: Evaporative Air-Conditioning versus Air-Conditioningfor the United 6,000 ,5,000 m) 4,000 8 3,000 2,000 1,000 0 20 EAC 20 AC 60 EAC 60 AC 100EAC Room size in sq m for EAC and AC * Depreciation D Interest Source:R. Foster. 4. TypicalLife-CycleCosts:EvaporativeAir-Conditioningversus Air-ConditioningforIndia 6,000 -_ - 5,000- rA 4,000 8 3,000 2,000 1,000 0- , , 20 EAC 20 AC 60 EAC 60 AC 100EAC 100 AC Room size in sq m for EAC and AC * Depreciation D:Interest E Energy n Water Maintenance Source: R.

Saudi Arabia and Australia have some limited general test standards. However, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)standards committees on EAC have submitted a proposed test standard for testing indirect evaporative air conditioning equipment adopted by ASHRAE in 1996. When these standards are adopted, the industry worldwide will benefit from a proposed certification program for rating EACs based on the ASHRAE test standards by the Evaporative Cooling Institute.

However, the direct-indirect EAC's power consumption is only about 25 percent higher than direct EAC on an annual basis, and the total cost of electricity and maintenance for indirect-direct EAC systems amounts to only about 50 percent of that of conventional VACs of comparable performance. 1 compares typical total investment costs of EAC and VAC systems for different room sizes (20, 60 and lOOm2 ) for the United States. In all cases EAC is the cheaper option. 1. TypicalInvestment Costsfor EvaporativeAir-Conditioningin the United States 2,500 , 2,000- - 1,500 E 1,000, - _ 500- 20 EAC 20 AC 60 EAC 60 AC 100EAC 100 AC Room size in sq m for EAC and AC ES Installationcost Costcooler Source:R.

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