Title: Performance of locomotive air conditioning using heat recovery by exhaust gas of CI engine

Authors: Subhash Kumar; V.N. Raibhole

Addresses: Department of Mechanical Engineering, G.H. Raisoni College of Engineering and Management, Pune, India ' Department of Mechanical Engineering, Modern Education Society College of Engineering, Pune, India

Abstract: This paper focuses on the working of a two fluid gas absorption refrigeration unit, intended to operate in an atmospheric environment, with a compartment temperature of 15°C. Gas absorption systems, unlike vapour-compression systems, use a waste heat source from multi-cylinder CI engine to facilitate refrigeration. Two fluid gas absorption refrigerators use electric based heater installed generator and no moving parts, such as pumps and compressors, and operate at a single system pressure. Unlike the vapour-compression cycle, which utilises pressure gains and drops to produce refrigeration, the three fluid gas absorption cycles uses the principle of partial pressure between two fluids to create the cooling effect. This paper compares the performance of absorption refrigeration cycles that are used for refrigeration temperatures under atmospheric temperature. The corresponding results can look as if the coefficient of performance (COP) is directly proportional to the growing generator and evaporator temperatures however reductions with increasing condenser and absorbent temperatures, the COP of the system varied between 0.6 to 0.86.

Keywords: coefficient of performance; COP; vapour compression refrigeration system; VCRS; vapour absorption refrigeration system; VARS; NH₃-H₂O; Tg; Tc; Te.

DOI: 10.1504/IJEE.2021.118455

International Journal of Environmental Engineering, 2021 Vol.11 No.2, pp.106 - 117

Received: 25 Apr 2020
Accepted: 19 Sep 2020
Published online: 26 Oct 2021 *

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