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A Joule Thompson Heat Exchanger

IP.com Disclosure Number: IPCOM000095459D
Original Publication Date: 1964-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Jones, RE: AUTHOR [+2]

Abstract

Precooling of a high pressure helium gas stream occurs in a Joule Thompson counter current heat exchanger. Such is by using the gas from the Sterling cycle engine to effect heat transfer from the high pressure stream to the cool low pressure stream. In this way, the over-all efficiency of a helium refrigeration system is improved.

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A Joule Thompson Heat Exchanger

Precooling of a high pressure helium gas stream occurs in a Joule Thompson counter current heat exchanger. Such is by using the gas from the Sterling cycle engine to effect heat transfer from the high pressure stream to the cool low pressure stream. In this way, the over-all efficiency of a helium refrigeration system is improved.

The heat exchanger is an integral part of a Sterling cycle engine. The engine comprises a cylinder having a displacer in it, two pressure reservoirs connected as P1 and P2, and a regenerator. The regenerator forms a sleeve around the cylinder and contains, in addition to its normal contents of a fine solid material such as lead shot, pipes containing both the high pressure and low pressure Joule Thompson streams.

The gas used by the Sterling cycle engine flows around the Joule Thompson pipes. This gas is cooled by the low pressure stream which has undergone Joule Thompson cooling and acts in the exchanger to cool the high pressure Joule Thompson stream.

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