Thermal energy storage device and method for making the same

Details Thermal energy storage device and method for making the same Thermal energy storage device and method for making the same

1979-09-17

1981-11-10

Davis, Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Solid fluent heat exchange material

126400, 252 70, 220362, 220363, 425394, 425392, F28D 2100

Patent

active

042992745

ABSTRACT:
A thermal energy storage device and method for making the same. The thermal energy storage device is in the form of a sealed tube-like container such as a tube-like cylinder or other geometrical configuration partially filled with a phase change material such as calcium chloride hexahydrate. The cylinder is made of tubular high density polyethylene and more particularly an ultra high molecular weight high density polyethylene having a molecular weight of about 500,000 to 700,000 which is tough, chemically resistant, withstands low and high temperatures, acts as a moisture vapor barrier and can be fused and sealed. The calcium hexahydrate is filled in an open top cylinder, closed at the bottom by dissolving two parts of calcium chloride dihydrate with one part of water to provide calcium chloride hexahydrate in liquid form. The cylinder is filled to about 90% by volume and a cap of the same material is then preheated to about fusion temperature. The open top of the cylinder is then brought up to fusion temperature and the cap is fused to it under pressure.

REFERENCES:
patent: 2846421 (1958-08-01), Pollock
patent: 2974367 (1961-03-01), Doering et al.
patent: 3532856 (1970-10-01), Collins
patent: 3825393 (1974-07-01), Bittner et al.
patent: 4062347 (1977-12-01), Jensen
patent: 4114600 (1978-09-01), Newton

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