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Title: Analysis of a domestic refrigerator cycle with an ejector

Abstract

In this paper, an improved cooling cycle for a conventional domestic refrigerator-freezer utilizing an ejector for vapor precompression is analyzed using an idealized model Its energy efficiency is compared to that of the conventional refrigerator-freezer system. Emphasis is placed on off-design conditions. The ejector-enhanced refrigeration cycle consists of two evaporators that operate at different pressure and temperature levels. The ejector combines the vapor flows exiting the two evaporators into one at an intermediate pressure level The ejector cycle gives an increase of up to 12.4% in the coefficient of performance (COP) compared to that of a standard refrigerator-freezer refrigeration cycle. The analysis includes calculations on the optimum throat diameters of the ejector. The investigation on the off-design performance of the ejector cycle shows little dependency of energy consumption on constant ejector throat diameters.

Authors:
;  [1]
  1. Univ. of Maryland, College Park, MD (United States)
Publication Date:
OSTI Identifier:
87489
Report Number(s):
CONF-950104-
TRN: IM9535%%120
Resource Type:
Conference
Resource Relation:
Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) winter meeting and exhibition, Chicago, IL (United States), 28 Jan - 1 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of ASHRAE transactions 1995. Volume 101, Part 1; PB: 1517 p.
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; REFRIGERATORS; PERFORMANCE; VAPOR COMPRESSION REFRIGERATION CYCLE; AUGMENTATION; MODIFICATIONS

Citation Formats

Tomasek, M.L., and Radermacher, R. Analysis of a domestic refrigerator cycle with an ejector. United States: N. p., 1995. Web.
Tomasek, M.L., & Radermacher, R. Analysis of a domestic refrigerator cycle with an ejector. United States.
Tomasek, M.L., and Radermacher, R. Tue . "Analysis of a domestic refrigerator cycle with an ejector". United States.
@article{osti_87489,
title = {Analysis of a domestic refrigerator cycle with an ejector},
author = {Tomasek, M.L. and Radermacher, R.},
abstractNote = {In this paper, an improved cooling cycle for a conventional domestic refrigerator-freezer utilizing an ejector for vapor precompression is analyzed using an idealized model Its energy efficiency is compared to that of the conventional refrigerator-freezer system. Emphasis is placed on off-design conditions. The ejector-enhanced refrigeration cycle consists of two evaporators that operate at different pressure and temperature levels. The ejector combines the vapor flows exiting the two evaporators into one at an intermediate pressure level The ejector cycle gives an increase of up to 12.4% in the coefficient of performance (COP) compared to that of a standard refrigerator-freezer refrigeration cycle. The analysis includes calculations on the optimum throat diameters of the ejector. The investigation on the off-design performance of the ejector cycle shows little dependency of energy consumption on constant ejector throat diameters.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 1995},
month = {Tue Aug 01 00:00:00 EDT 1995}
}

Conference:
Other availability
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