Clathrate forming medium and its use in thermal energy storage s

Details Clathrate forming medium and its use in thermal energy storage s Clathrate forming medium and its use in thermal energy storage s

1998-06-25

2000-06-27

Atkinson, Christopher

Heat exchange

Regenerator

Heat collector

252 70, F28D 1700

Patent

active

060794828

ABSTRACT:
An improved thermal energy storage system and a process for thermal energy storage and transfer are disclosed. The cooling medium, a clathrate forming mixture, comprises water, and a hydrofluorocarbon having at least three carbon atoms and a molecular diameter less than about 7 .ANG.. Preferably the hydrofluorocarbon is selected from hydrofluoropropanes and more preferably is selected from the group consisting of CHF.sub.2 CHFCHF.sub.2, CF.sub.2 HCF.sub.2 CH.sub.2 F, CF.sub.3 CHFCH.sub.2 F, CF.sub.3 CH.sub.2 CF.sub.2 H, CF.sub.3 CF.sub.2 CH.sub.3, CF.sub.3 CHFCF.sub.2 H, CF.sub.3 CH.sub.2 CF.sub.3, CF.sub.3 CF.sub.2 CF.sub.2 H, CH.sub.2 FCF.sub.2 CF.sub.3, CHF.sub.2 CF.sub.2 CH.sub.3, CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.3, CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 H, and CF.sub.3 CFHCFHCF.sub.3.

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