State-of-the-art heat transfer fluids for parabolic trough collector

Krishna, Y. and Faizal, M. and Saidur, R. and Ng, K.C. and Aslfattahi, N. (2020) State-of-the-art heat transfer fluids for parabolic trough collector. International Journal of Heat and Mass Transfer, 152. ISSN 0017-9310

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Abstract

Solar thermal energy conversion is gaining more attention among researchers due to the recent development in nanofluids and molten salt technology. Among various solar collectors, parabolic trough collector has received significant attention from researchers due to their operating temperature range (150-800 °C) feasible for power generation. Parabolic trough collector is currently having a higher number of installations compared to other concentrated solar power technology around the globe. Most of the conventional heat transfer fluid used in PTC have poor heat transfer and light to heat conversion properties. Therefore, it is advantageous to enhance the thermophysical properties of heat transfer fluid to improve the overall efficiency of the system. Well-engineered nano-enhanced heat transfer fluid is advantageous because a very low mass fraction of nanoparticles brings considerable enhancement in thermophysical properties. This paper focuses on the most recent advancement in heat transfer fluids, their preparation and stability issues when doped with nanoparticles. Various heat transfer fluids currently used in parabolic trough collectors and the nano-enhanced heat transfer fluids having the properties better than conventional heat transfer fluids are compared and their preparation methods and properties are discussed. Enhancement of thermophysical properties of molten salts by doping nanoparticles and their enhancement in thermal stability at high temperature, the possibility of using mono and hybrid nanofluid, ionic liquids, gaseous heat transfer fluid and vegetable oil as the heat transfer fluid in parabolic trough collectors are the key highlights of this review.

Item Type:
Journal Article
Journal or Publication Title:
International Journal of Heat and Mass Transfer
Additional Information:
This is the author’s version of a work that was accepted for publication in International Journal of Heat and Mass Transfer. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Heat and Mass Transfer, 152, 2020 DOI: 10.1016/j.ijheatmasstransfer.2020.119541
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
142543
Deposited By:
Deposited On:
11 Jun 2020 08:47
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Sep 2020 05:55