Energy storage apparatus and method

Details Energy storage apparatus and method Energy storage apparatus and method

F - Mech Eng,Light,Heat,Weapons

25

B

62/23

F25B 1/00 (2006.01) F25B 41/00 (2006.01) F25D 16/00 (2006.01)

Patent

CA 2002751

ABSTRACT OF DISCLOSURE There is provided a method and apparatus for storing energy and for utilizing the stored energy. The apparatus includes a storage container which holds a phase change energy storage material such as water. A plurality of coils are disposed in the storage container and carry a refrigerant material. At least one evaporator is connected to the coils. A self pumping apparatus is connected to a condensing unit, to the evaporator and to the coils, and is operated by the adiabatic conversion of refrigerant from its liquid state to a vapor plus liquid state. The self pumping apparatus thus moves the refrigerant fluid to the evaporator without the need for additional energy input. The self pumping apparatus includes a pair of tanks each of which alternately operate as a pumper and as an accumulator during ice melting. During ice freezing, both containers operate as accumulators.

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