Performance analysis of a two stage vapor compression refrigeration cycle offering two cold temperatures

Author

Halfaoui, Mbarek Wafa ; Tahar, Khir ; Ammar, Ben Brahim

Author_Institution

Nat. Eng. Sch. of Gabes, Univ. of Gabes, Gabes, Tunisia

fYear

2014

fDate

25-27 March 2014

Firstpage

1

Lastpage

6

Abstract

In this paper, a new two stage vapor compression refrigeration cycle is investigated. At this cycle, both the vapor compression and expansion processes are done at two stages. This system, designed to offer two cold temperatures in order to store two categories of food, works with R134a as a refrigerant. To enhance its performance, a heat exchanger and a flash separator are integrated in this cycle. The aim of this study is to find the optimal operating point corresponding to the best performance by studying several design and operating parameters. So that, a simulation program based on the first and second laws of thermodynamics was developed and a coefficient of performance of 3.5 was obtained.

Keywords

energy conservation; entropy; heat exchangers; refrigerants; refrigeration; R134a refrigerant; expansion process; first law of thermodynamics; flash separator; heat exchanger; optimal operating point; performance analysis; second law of thermodynamics; two cold temperatures; two stage vapor compression refrigeration cycle; Educational institutions; Electronic mail; Heating; Mathematical model; Particle separators; Refrigerants; R134a; configuration; performance; refrigeration; simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Renewable Energy Congress (IREC), 2014 5th International

Conference_Location

Hammamet

Print_ISBN

978-1-4799-2196-6

Type

conf

DOI

10.1109/IREC.2014.6826955

Filename

6826955