Thermal performance of diesel engine exhaust heat recovery system using concentric tube heat exchanger inserts with different porous materials. Issue 6 (1st November 2016)

• Record Type: Journal Article
• Authors: Senthilkumar, K.; Palanisamy, P.
• Is Part Of: International journal of ambient energy. Volume 37:Issue 6(2016)
• Page Start: 645
• Page End: 651
• Publication Date: 2016-11-01
• Subjects: internal combustion engine -- heat exchanger -- porous materials -- heat recovery -- boiler; Power resources -- Periodicals; Renewable energy sources -- Periodicals; 621.04205
• DOI: 10.1080/01430750.2015.1023843
• Languages: English
• ISSNs: 0143-0750

Abstract

Abstract : This paper aims to analyse and improve the thermal performance of a concentric tube heat exchanger using porous material inserts. In this method, two different types of porous materials such as cast iron and mild steel were introduced on the outer surface of the inner tube wall of a concentric tube exchanger. The porous particle improves the convective heat transfer co-efficient between the tube wall and fluid flow surface. Experimentally, it was found that the inserted porous material enhances the heat exchanger effectiveness by 76% for cast iron and 77% for mild steel. The effect of inserting porous particles on the waste heat recovered from the engine exhaust was also investigated in the present study.