Exergy efficiency analysis of a flat plate solar collector using graphene based nanofluid

Z. Said, M. A. Alim, Isam Janajreh

Research output: Contribution to journalConference articlepeer-review

17 Scopus citations

Abstract

The thermal efficiency of a flat plate solar thermal collector is largely affected by the thermal conductivity of the fluid used. In this paper, we theoretically analyzed the heat transfer performance, the entropy generation rate, and the exergy efficiency of the two different graphene based nanofluids (graphene/Acetone and graphene/water). From the analyses, it is revealed that by inserting a small amount of graphene nanoparticles in water, exergy efficiency could be enhanced by 21%, comparing to conventional fluids and entropy generation is decreased by 4%. However, the graphene/water nanofluid shows a lower entropy generation. This characteristic suggests that graphene/water nanofluid is a better candidate for flat solar thermal application.

Original languageBritish English
Article number012015
JournalIOP Conference Series: Materials Science and Engineering
Volume92
Issue number1
DOIs
StatePublished - 12 Oct 2015
EventInternational Conference on Advanced Materials, ICAM 2015 - Irbid, Jordan
Duration: 27 Apr 201529 Apr 2015

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