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Small Scale Heat Circulation System for the Megacalorie Range

IP.com Disclosure Number: IPCOM000083737D
Original Publication Date: 1975-Jul-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 20K

Publishing Venue

IBM

Related People

Vielsack, W: AUTHOR

Abstract

This system consists of a freezing agent evaporating part 1 and a freezing agent condensing part 2, connected by liquid line 3 and gas line 4. The system relates to equipment in which the freezing agent is evaporated in the horizontal heat exchanger coils 1, which may comprise several horizontal or vertical turns. (Condensation in or around the coils.)

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Small Scale Heat Circulation System for the Megacalorie Range

This system consists of a freezing agent evaporating part 1 and a freezing agent condensing part 2, connected by liquid line 3 and gas line 4. The system relates to equipment in which the freezing agent is evaporated in the horizontal heat exchanger coils 1, which may comprise several horizontal or vertical turns. (Condensation in or around the coils.)

Previously, it was felt that equipment of this kind functions satisfactorily and provides economically acceptable heat exchanger surfaces only when evaporation takes place around the coils, or at relatively great differences of height between the condenser 2 and the evaporator 1 (about 2 m, depending upon the cooling area and the pressure loss).

This minimum height ensured that the pressure loss in the coils and the heat exchanger 1 was compensated by the liquid level in the fluid line 3.

Contrary to this opinion, it is now possible to build a satisfactorily operating system, in which this minimum height can be reduced down to about 1/10th. At a higher cooling load resulting in pulsation the characteristics are different from those in the stationary state, which permits reducing the distance between condenser 2 and evaporator 1 and pressure losses in the evaporator coil.

The load is best controlled by a regulating valve in the fluid line 3.

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