Experimental study of a novel subcooling method based on liquid desiccant dehumidification for vapor-compression refrigeration systems

Abstract

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Polyurethane Aerogels Based on Cyclodextrins: High-Capacity Desiccants Regenerated at Room Temperature by Reducing the Relative Humidity of the Environment

“…Most familiar is the use of desiccants to keep foodstuffs, − pharmaceuticals, electronics, and other products dry during shipment and storage . Larger-scale applications of desiccants, mostly under consideration, include use as gas dryers, in heat pumps and refrigeration, , as energy-saving alternatives to heat-drying, and in atmospheric moisture capture, for, for example, air dehumidification, air-conditioning, and fresh water production. − Desiccants can be anhydrous metal salts, − zeolites, − and clays including silica gels, − activated carbons, − and polymers. − The latter are particularly desirable because of their processability and nontoxicity. The most established class of polymeric desiccants is based on polyelectrolytes, whereas one of the attractive features of those materials is the fact that their hydrophilicity can be modified with −OH and −COOH groups .…”

“…Most familiar is the use of desiccants to keep foodstuffs, 1−3 pharmaceuticals, 4 electronics, 5 and other products dry during shipment and storage. 6 Larger-scale applications of desiccants, mostly under consideration, include use as gas dryers, 7 in heat pumps and refrigeration, 8,9 as energy-saving alternatives to heat-drying, 10 and in atmospheric moisture capture, 11 for, for example, air dehumidification, 12 air-conditioning, 13 and fresh water production. 14−17 Desiccants can be anhydrous metal salts, 18−21 zeolites, 22−24 and clays including silica gels, 25−30 activated carbons, 31−36 and polymers.…”