Study of a Solar Booster Assisted Ejector Refrigeration System With R134a-Reference-Cited by-同舟云学术

Study of a Solar Booster Assisted Ejector Refrigeration System With R134a

Published:2005-02-01 Issue:1 Volume:127 Page:53-59
ISSN:0199-6231
Container-title:Journal of Solar Energy Engineering
language:en
Short-container-title:

Author:

Herna´ndez Jorge I.¹,Best Roberto¹,Dorantes Rube´n J.²,Estrada Claudio A.¹

Affiliation:

1. Centro de Investigacio´n en Energı´a UNAM Apdo. Postal 34, Temixco, Morelos 62580, Me´xico

2. Departamento de Energı´a, UAM Azcapotzalco Av. San Pablo 180, Me´xico D. F. 02200, Me´xico

Abstract

The studies of ejector refrigeration systems employing refrigerant R134a for air conditioning are scarce and nonexistent for ice making when its potential application in developing countries will lessen their refrigeration needs. So, a parametric study for an ice making solar booster assisted ejector refrigeration system operating with R134a is carried out. System energy and exergy efficiencies as well as ejector efficiency are presented as a function of generator and condenser temperatures and booster discharge pressure. A discussion on maximum ejector efficiency and its effect in system behavior is also carried out. With results indicating that for an evaporator temperature of −10°C, the system can operate at a generator temperature of 85°C with average energy efficiencies between 0.21 and 0.58, depending on the condenser temperature. Consequently, these systems could be a solution for solar refrigeration using off-the-shelf components.

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Link

http://asmedigitalcollection.asme.org/solarenergyengineering/article-pdf/127/1/53/5685534/53_1.pdf

Reference6 articles.

1. Sokolov, M., and Hershgal, D., 1990, “Enhanced Ejector Refrigeration Cycles Powered by Low Grade Heat-Part 1: System characterization,” Int. J. Refrig., 13 (November), pp. 351–356.

2. Dorantes, R., Estrada, C. A., and Pilatowsky, I., 1996, “Mathematical Simulation of a Solar Ejector-compression Refrigeration System,” Appl. Therm. Eng., 16(8/9), pp. 669–675.

3. Lu, L.-T., 1984, “Etudes The´orique et Expe´rimtale de la Production de Froid Par Machine Tritherme a Ejecteur de Fluide Frigorige`ne,” Ph.D. thesis, Laboratoire d’Energe´tique et d’Automatique, de I’INSA de Lyon, France.

4. Sokolov, M., and Hershgal, D., 1990, “Enhanced Ejector Refrigeration Cycles Powered by Low Grade Heat-Part 2: Design Procedures,” Int. J. Refrig., 13 (November), pp. 357–363.

5. Mooney, D. A., 1955, Introduction to Thermodynamics and Heat Transfer, Prentice Hall, Englewood Cliffs, USA, pp. 279 and 302.

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