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Advanced Chemical Heat Pumps Using Liquid-Vapor Reactions
L. Kirol
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Abstract
Chemical heat pumps utilizing liquid-vapor \nreactions can be configured in forms analogous \nto electric drive vapor-compression heat pumps \nand heat activated absorption heat pumps. Basic \nthermodynamic considerations eliminate some heat \npumps and place restrictive working fluid \nrequirements on others, but two thermodynamically \nfeasible systems have significant \npotential advantage over conventional technology. \nAn electric drive reactive heat pump \ncan use smaller heat exchangers and compressor \nthan a vapor-compression machine, and have more \nflexible operating characteristics. A waste \nheat driven heat pump (temperature amplifier) \nusing liquid-vapor chemical reactions- can operate \nwith higher coefficient of performance and \nsmaller heat exchangers than an absorption temperature \namplifying heat pump. Higher temperatures \nand larger temperature lifts should also \nbe possible.