Experimental Investigation of Ejector-Assisted Vapor Compression System-Reference-Cited by-同舟云学术

Experimental Investigation of Ejector-Assisted Vapor Compression System

Published:2019-09 Issue:03 Volume:27 Page:1950029
ISSN:2010-1325
Container-title:International Journal of Air-Conditioning and Refrigeration
language:en
Short-container-title:Int. J. Air-Cond. Ref.

Author:

Kumar Vikas¹^ORCID,Sachdeva Gulshan²

Affiliation:

1. Department of Mechanical Engineering, Krishna Engineering College, Ghaziabad, UP, India

2. Department of Mechanical Engineering, National Institute of Technology, Kurukshetra, Haryana, India

Abstract

The performance of an ejector as an expansion device rather than the conventional expansion valve or capillary tube in a vapor compression system is experimentally analyzed. Experiments have been conducted using 28 ejectors of different dimensions at the same condenser and evaporator temperatures, and it has been observed that for utmost performance, an optimum area ratio of the ejector is required. One of the ejector geometry has been experimented further for a wide range of condenser and evaporator temperatures. The coefficient of performance is found to be enhanced by at least 10% in comparison to the conventional vapor compression system for the considered range of condenser and evaporator temperatures and the maximum improvement in COP obtained is 12.83% at 14.3∘C evaporator temperature and 32.4∘C condenser temperature with 17.9211 ejector area ratio. The refrigerant R134a has been used as the working substance.

Funder

Department of Science and Technology, Government of India

Publisher

Springer Science and Business Media LLC

Subject

Fluid Flow and Transfer Processes,Renewable Energy, Sustainability and the Environment,Control and Systems Engineering

Link

https://www.worldscientific.com/doi/pdf/10.1142/S2010132519500299

Reference13 articles.

1. Experimental investigation on the performance of the refrigeration cycle using a two-phase ejector as an expansion device

2. Performance of the two-phase ejector expansion refrigeration cycle

3. Effect of throat diameters of the ejector on the performance of the refrigeration cycle using a two-phase ejector as an expansion device

4. Experimental study on R-134a refrigeration system using a two-phase ejector as an expansion device

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