Exergy analysis of a vapour compression–absorption cascaded refrigeration system using modified Gouy–Stodola equation. (2014)

• Record Type: Journal Article
• Authors: Jain, Vaibhav; Kachhwaha, Surendra Singh; Sachdeva, Gulshan
• Is Part Of: International journal of exergy. Volume 15:Number 1(2014)
• Page Start: 1
• Page End: 23
• Publication Date: 2014
• Subjects: vapour compression -- absorption -- cascaded refrigeration system -- modified Gouy–Stodola law.; Exergy -- Periodicals; 621.402105
• Languages: English
• ISSNs: 1742-8297

Abstract

In the present study, the performance of vapour compression–absorption cascaded refrigeration system (VCACRS) is studied with modified Gouy–Stodola equation and the results are compared with the classical approach of exergy evaluation. The quantitative difference in two approaches is presented which necessitates the need to employ modified approach. The expressions are formulated for effective temperature and real irreversible loss for different components of VCACRS. The overall performance of system can be improved by increasing the evaporator and generator temperature and by decreasing the absorber, cascade condenser and condenser temperature. Coefficient of structural bonds (CSB) analysis shows evaporator is relatively more sensitive to change in its temperature as compared with the other components.