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Title: REFRIGERATION ESPECIALLY FOR VERY LOW TEMPERATURES

Abstract

A refrigeration system for producing very low temperatures is described. The system of the invention employs a binary mixture refrigerant in a closed constant volume, e.g., Freon and ethylene. Such mixture is compressed in the gaseous state and is then separated in a fractionating column element of the system. Thenceforth, the first liquid to separate is employed stagewise to cool and liq uefy successive portions of the refrigerant at successively lower temperatures by means of heat exchangers coupled between the successive stages. When shut down, all of the volumes of the system are interconnected and a portion of the refrigerant remains liquid at ambient temperatures so that no dangerous overpressures develop. The system is therefore rugged, simple and dependable in operation.

Inventors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4103519
Patent Number(s):
US 2952139
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-15-007483
NSA Number:
NSA-15-007483
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; COOLING; ETHYLENE; FREONS; GASES; HEAT EXCHANGERS; LIQUIDS; LOW TEMPERATURE; MIXING; TEMPERATURE; VOLUME

Citation Formats

Kennedy, P.B., and Smith, H.R. Jr. REFRIGERATION ESPECIALLY FOR VERY LOW TEMPERATURES. United States: N. p., 1960. Web.
Kennedy, P.B., & Smith, H.R. Jr. REFRIGERATION ESPECIALLY FOR VERY LOW TEMPERATURES. United States.
Kennedy, P.B., and Smith, H.R. Jr. Tue . "REFRIGERATION ESPECIALLY FOR VERY LOW TEMPERATURES". United States.
@article{osti_4103519,
title = {REFRIGERATION ESPECIALLY FOR VERY LOW TEMPERATURES},
author = {Kennedy, P.B. and Smith, H.R. Jr.},
abstractNote = {A refrigeration system for producing very low temperatures is described. The system of the invention employs a binary mixture refrigerant in a closed constant volume, e.g., Freon and ethylene. Such mixture is compressed in the gaseous state and is then separated in a fractionating column element of the system. Thenceforth, the first liquid to separate is employed stagewise to cool and liq uefy successive portions of the refrigerant at successively lower temperatures by means of heat exchangers coupled between the successive stages. When shut down, all of the volumes of the system are interconnected and a portion of the refrigerant remains liquid at ambient temperatures so that no dangerous overpressures develop. The system is therefore rugged, simple and dependable in operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 13 00:00:00 EDT 1960},
month = {Tue Sep 13 00:00:00 EDT 1960}
}