By Gert Jan Bom, Robert Foster, Ebel Dijkstra, Marja Tummers
'Under the best stipulations and purposes, evaporative air-conditioning (EAC) applied sciences offers first-class cooling and air flow with minimum power consumption.'
Evaporative air-conditioning applied sciences are getting used more and more in residential and advertisement functions around the globe. EAC applied sciences, which depend upon water as a coolant instead of on chemical refrigerants, are reasonably-priced to supply and use and feature vital environmental merits. This paper introduces the technical points of EAC, reports EAC's scope of program, and surveys the categorical weather conditions below 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
Contract. The regular maintenance consists of preparing the unit at the beginning of the cooling season by fitting new pads and lubricating the bearings. At the end of the season, the sump should be cleaned out by removing the scaling and repainting the inside. The following paragraphs set out the maintenance requirements for each component and type of problem affecting EACs: Maintenance of Pads Pads typically require regular maintenance or replacement, the frequency depending on the materials, construction, and conditions of use of the unit.
An accurate method is to calculate the heat load of the structure by the same engineering principles used for refrigerated cooling. With heat loads determined, the cooling system is designed to remove them. 6°C. 2, it is shown that the heat gain falls within the recommended operating zone and that the useful sensible room cooling is then about 65 percent. e. amount of heat to be removed from the room per unit of time and the specific heat of the washed air. 1E are sometimes used which contain algorithms for EAC for more precise sizing and an evaluation of overall system performance based on TMY or TRYclimatological data.
Companies supplying these devices apparently aim for other markets, such as developing countries where grid electricity is not yet common. 1 that only a very few sources are suppliers of solar EAC. 1. A Solar-Powered Evaporative Air-Conditioner Solar (PV)panel array Evaporatingpad media Air distribution baffle Ambient air in Water storage with recirculating pump Axial fan t Supply air out Source: ECI. 1. Available Packaged Solar Evaporative Air-Conditioning Equipment Supplier Jade Mountain Jade Mountain Solar Energie Technik Type Rated capacity Window Home Portable 25 m3/mnin 75 m3/min 10 m3/min Required solar Approximate cost capacity including PV modules 60 Wp 300 Wp 110Wp US$1,400 US$4,500 US$2,500 Source:Authors.
Evaporative Air-Conditioning: Applications for Environmentally Friendly Cooling by Gert Jan Bom, Robert Foster, Ebel Dijkstra, Marja Tummers