THERMAL SCIENCE

International Scientific Journal

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Alla Ibrahim

,

Muhammet Kayfeci

COMPARATIVE ANALYSIS OF A SOLAR TRIGENERATION SYSTEM BASED ON PARABOLIC TROUGH COLLECTORS USING GRAPHENE AND FERROFLUID NANOPARTICLES

ABSTRACT
In this comparative study, the thermodynamic analysis of a trigeneration system driven by a parabolic through solar collector based on two different types of nanofluid is performed. A standard trigeneration system consists of two subsystems, including an absorption heat pump and the organic Rankine cycle. Two types of nanoparticles (graphene and ferrofluid) that possess excellent and diverse physical properties within a base fluid (Syltherm 800) were selected to be the absorption fluids in the solar cycle. Four organic fluids, namely R123, R401a, R601, and R601a, for the organic Rankine cycle are examined. The results clearly depicted improvement in the system performance. It was found that graphene nanoparticles performed better as compared to the ferrofluid nanoparticles. The largest temperature of the collector outlet was obtained at 257.4℃ with Syltherm 800/graphene. The highest net power produced by the system was 134.1 kW and the maximum overall energy and exergy efficiencies of the system were 160.5% and 21.84%, respectively. The highest net power produced by the system was 134.1 kW and the maximum overall energy and exergy efficiencies of the system were 160.5% and 21.84%, respectively. The solar collectors are the main source of the exergy destruction and the highest value was recorded about 683 kW.
KEYWORDS
solar collector, trigeneration, nanofluids, energy, exergy
PAPER SUBMITTED: 2019-11-03
PAPER REVISED: 2020-02-23
PAPER ACCEPTED: 2020-03-27
PUBLISHED ONLINE: 2020-05-02
DOI REFERENCE: https://doi.org/10.2298/TSCI191103164I
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 4, PAGES [2549 - 2563]
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Comparative analysis of a solar trigeneration system based on parabolic trough collectors using graphene and ferrofluid nanoparticles

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence