19 Dec '12, 7pm

New AC System May Help Cool Global Warming - Green Building, Hvac, Indoor Air Quality - EcoHome Magazine

It’s a mouthful, but desiccant-enhanced evaporative (DEVap) air conditioning may soon provide you with a superior climate control system consuming a small fraction of the electricity used by today’s most efficient, conventional air-conditioning equipment, releasing far less carbon dioxide in the process, and cutting costly peak electrical demand by an estimated 80% to boot. As the name implies DEVap air conditioning combines two apparently contradictory technologies: dehumidification and evaporative cooling. The system pulls moisture out of the air by blowing it across a liquid desiccant--a water-absorbing material (diluted lithium chloride)--that draws vapor out of the airstream, dehumidifying it. In the second stage, this dry air is tempered by an advanced, indirect evaporative cooling system. Unlike a conventional evaporative system that cools air by evaporating water i...

Full article: http://www.ecohomemagazine.com/green-building/new-ac-syst...

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