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Title: Refrigeration system having standing wave compressor

Abstract

A compression-evaporation refrigeration system, wherein gaseous compression of the refrigerant is provided by a standing wave compressor. The standing wave compressor is modified so as to provide a separate subcooling system for the refrigerant, so that efficiency losses due to flashing are reduced. Subcooling occurs when heat exchange is provided between the refrigerant and a heat pumping surface, which is exposed to the standing acoustic wave within the standing wave compressor. A variable capacity and variable discharge pressure for the standing wave compressor is provided. A control circuit simultaneously varies the capacity and discharge pressure in response to changing operating conditions, thereby maintaining the minimum discharge pressure needed for condensation to occur at any time. Thus, the power consumption of the standing wave compressor is reduced and system efficiency is improved.

Inventors:
 [1]
  1. Glen Allen, VA
Issue Date:
OSTI Identifier:
868610
Patent Number(s):
5174130
Assignee:
Sonic Compressor Systems, Inc. (Glen Allen, VA)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02G - HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04B - POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
refrigeration; standing; wave; compressor; compression-evaporation; gaseous; compression; refrigerant; provided; modified; provide; separate; subcooling; efficiency; losses; due; flashing; reduced; occurs; heat; exchange; pumping; surface; exposed; acoustic; variable; capacity; discharge; pressure; control; circuit; simultaneously; varies; response; changing; operating; conditions; maintaining; minimum; condensation; occur; time; power; consumption; improved; standing acoustic; wave compressor; losses due; power consumption; acoustic wave; control circuit; operating conditions; heat pump; heat exchange; standing wave; operating condition; heat pumping; pumping surface; /62/417/

Citation Formats

Lucas, Timothy S. Refrigeration system having standing wave compressor. United States: N. p., 1992. Web.
Lucas, Timothy S. Refrigeration system having standing wave compressor. United States.
Lucas, Timothy S. Wed . "Refrigeration system having standing wave compressor". United States. https://www.osti.gov/servlets/purl/868610.
@article{osti_868610,
title = {Refrigeration system having standing wave compressor},
author = {Lucas, Timothy S},
abstractNote = {A compression-evaporation refrigeration system, wherein gaseous compression of the refrigerant is provided by a standing wave compressor. The standing wave compressor is modified so as to provide a separate subcooling system for the refrigerant, so that efficiency losses due to flashing are reduced. Subcooling occurs when heat exchange is provided between the refrigerant and a heat pumping surface, which is exposed to the standing acoustic wave within the standing wave compressor. A variable capacity and variable discharge pressure for the standing wave compressor is provided. A control circuit simultaneously varies the capacity and discharge pressure in response to changing operating conditions, thereby maintaining the minimum discharge pressure needed for condensation to occur at any time. Thus, the power consumption of the standing wave compressor is reduced and system efficiency is improved.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Works referenced in this record:

An intrinsically irreversible thermoacoustic heat engine
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Parametrically driven variable‚Äźreluctance generator
journal, August 1990


An Electromagnetic Sound Generator for Producing Intense High Frequency Sound
journal, May 1941


Understanding some simple phenomena in thermoacoustics with applications to acoustical heat engines
journal, February 1985


Thermoacoustic engines
journal, October 1988