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Title: Heat pump with freeze-up prevention

Abstract

What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid prevents freeze up of the second heat exchanger by keeping the temperature above the dew point; and, optionally, provides heat for efficient operation.

Inventors:
 [1]
  1. (Dallas, TX)
Issue Date:
Research Org.:
NORTHRUP INDUSTRIES
OSTI Identifier:
864084
Patent Number(s):
4308042
Assignee:
Atlantic Richfield Company (Los Angeles, CA) OSTI
DOE Contract Number:  
AC03-78CS31718
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
heat; pump; freeze-up; prevention; disclosed; apparatus; conditioning; fluid; characterized; handler; path; circulating; exchange; relationship; refrigerant; exchangers; effecting; ambient; air; compressor; efficiently; compressing; throttling; valve; liquid; circuit; source; device; valves; switches; selecting; direction; flow; therethrough; particular; mode; operation; prevents; freeze; exchanger; keeping; temperature; dew; optionally; provides; efficient; effecting heat; refrigerant circuit; pump apparatus; ambient air; heat pump; heat exchange; heat exchanger; heat exchangers; exchange relationship; liquid refrigerant; exchange fluid; refrigerant fluid; exchange relation; fluid circuit; refrigerant therethrough; provides heat; particular mode; circulating device; refrigerant heat; throttling valve; fluid handler; fluid characterized; fluid circulating; efficient operation; /62/126/165/

Citation Formats

Ecker, Amir L. Heat pump with freeze-up prevention. United States: N. p., 1981. Web.
Ecker, Amir L. Heat pump with freeze-up prevention. United States.
Ecker, Amir L. Thu . "Heat pump with freeze-up prevention". United States. https://www.osti.gov/servlets/purl/864084.
@article{osti_864084,
title = {Heat pump with freeze-up prevention},
author = {Ecker, Amir L.},
abstractNote = {What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid prevents freeze up of the second heat exchanger by keeping the temperature above the dew point; and, optionally, provides heat for efficient operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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