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Thermodynamic Analysis of Combined Vapor Compression and Vapor Absorption Refrigeration System.
Author(s):
1. AAMIR SHAIKH: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro,Pakistan
2. IKRAM KHURSHID: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan
3. Abdul Ghafoor Memon: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan
4. AAKASH DEEP: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan
5. TAHWER HUSSAIN: Department of Mechanical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan
Abstract:
Two of the popular refrigeration cycles, VC (Vapor Compression), and VA (VaporAbsorption) are used extensively for refrigeration purposes. In this paper, a system is proposed that works using both cycles powered by an IC (Internal Combustion) engine, where mechanical energy is used to run the VC cycle while exhaust gasses are used to operate the VA cycle. The VC cycle works on R12 refrigerant while LiBr-H2O combination is selected for operation of VA cycle. Firstly, the refrigeration system is modeled, followed by a parametric study to investigate the impacts of various operating parameters on the system performance. The results exhibit that for maximum chilling and overall performance, the condenser and evaporator pressures in the VC cycle are obtained as 710 and 340 kPa, respectively, whereas generator and absorber temperatures in VA cycle are 85 and 20oC, respectively.
Page(s): 733-744
DOI: DOI not available
Published: Journal: Mehran University Research Journal of Engineering and Technology, Volume: 36, Issue: 3, Year: 2017
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