Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger
Abstract
A refrigeration system having a vapor compression cycle utilizing a liquid over-feeding operation with an integrated accumulator-expander-heat exchanger. Hot, high-pressure liquid refrigerant from the condenser passes through one or more lengths of capillary tubing substantially immersed in a pool liquid refrigerant in the accumulator-expander-heat exchanger for simultaneously sub-cooling and expanding the liquid refrigerant while vaporizing liquid refrigerant from the pool for the return thereof to the compressor as saturated vapor. The sub-cooling of the expanded liquid provides for the flow of liquid refrigerant into the evaporator for liquid over-feeding the evaporator and thereby increasing the efficiency of the evaporation cycle.
- Inventors:
-
- Oak Ridge, TN
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 870906
- Patent Number(s):
- 5622055
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- liquid; over-feeding; refrigeration; method; integrated; accumulator-expander-heat; exchanger; vapor; compression; cycle; utilizing; operation; hot; high-pressure; refrigerant; condenser; passes; lengths; capillary; tubing; substantially; immersed; pool; simultaneously; sub-cooling; expanding; vaporizing; return; compressor; saturated; expanded; provides; flow; evaporator; increasing; efficiency; evaporation; liquid over-feeding; heat exchange; heat exchanger; liquid refrigerant; pressure liquid; saturated vapor; accumulator-expander-heat exchanger; over-feeding operation; compression cycle; vapor compression; vaporizing liquid; integrated accumulator-expander-heat; /62/
Citation Formats
Mei, Viung C, and Chen, Fang C. Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger. United States: N. p., 1997.
Web.
Mei, Viung C, & Chen, Fang C. Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger. United States.
Mei, Viung C, and Chen, Fang C. Wed .
"Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger". United States. https://www.osti.gov/servlets/purl/870906.
@article{osti_870906,
title = {Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger},
author = {Mei, Viung C and Chen, Fang C},
abstractNote = {A refrigeration system having a vapor compression cycle utilizing a liquid over-feeding operation with an integrated accumulator-expander-heat exchanger. Hot, high-pressure liquid refrigerant from the condenser passes through one or more lengths of capillary tubing substantially immersed in a pool liquid refrigerant in the accumulator-expander-heat exchanger for simultaneously sub-cooling and expanding the liquid refrigerant while vaporizing liquid refrigerant from the pool for the return thereof to the compressor as saturated vapor. The sub-cooling of the expanded liquid provides for the flow of liquid refrigerant into the evaporator for liquid over-feeding the evaporator and thereby increasing the efficiency of the evaporation cycle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
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