Heat transfer device and method of manufacture

Details Heat transfer device and method of manufacture Heat transfer device and method of manufacture

1982-01-22

1985-04-09

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

291573H, 16510432, 165DIG24, F28D 1500

Patent

active

045095906

ABSTRACT:
In order to prevent collapse and stress cracking of heat transfer devices, such as those devices utilized in solar energy systems, a container, particularly one made of plastic, is partially filled with a solid or liquid heat transfer medium which evaporates and condenses over the working temperature range of the device, in an amount sufficient to leave a void space in the device at the highest temperature to which the device is subjected, an inert, solidifiable or liquifiable pressurizing material, such as solid carbon dioxide, which undergoes phase transition to a gaseous state at a temperature at least as high as the lowest temperature to which the device is subjected, in an amount sufficient to create a positive pressure within the void space at the lowest temperature to which the device is subjected, is added and the container is sealed to produce a gas and vapor impervious device. A heat transfer device manufactured in this manner is also disclosed.

REFERENCES:
patent: 4033130 (1977-07-01), Hermans
patent: 4299274 (1981-11-01), Campbell

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