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Patent application: PCM-based enhancement for reversed-cycle defrosting

Ben Welter - Thursday, July 25, 2019

U.S. patent application 20190226735 (applicant Sunamp Ltd., Lothian, Great Britain):

"A thermal energy storage system in the form of a reverse-cycle defrosting vapour compression system suitable for use with systems adapted to transfer heat from at least one heat source to at least one heat sink (heat transfer system), wherein said thermal energy storage system comprises: at least two thermal energy storage units; said thermal energy storage units comprise a thermal store comprising a heat exchanger with the storage units comprising a primary coil and a secondary coil; the primary coil is dedicated for use with refrigerant fluids and is adapted for inter-connection to both a condenser and a pressure-lowering device for use with a heat transfer system; the secondary coil is dedicated for use with heat transfer fluids and wherein said secondary coils are adapted to exchange heat with the phase change material in each thermal storage unit; said primary and secondary coils are surrounded by a suitable phase change material."

http://www.freepatentsonline.com/20190226735.pdf

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