Nanofluids for improved efficiency in cooling solar collectors - A review

Ali Najah Al-Shamani, Mohammad H. Yazdi, M. A. Alghoul, Azher M. Abed, Mohd Hafidz Ruslan, Sohif Mat, Kamaruzzaman Sopian

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

The use of nanofluids for cooling is an attracting considerable attention in various industrial applications. Compared with conventional fluids, nanofluids improve the heat transfer rate, as well as the optical properties, thermal properties, efficiency, and transmission and extinction coefficients of solar systems. The effects of different nanofluids on the cooling rate and hence the efficiency of solar systems can be experimentally investigated. Accordingly, this review paper presents the effects of nanofluids on the performance of solar collectors from the considerations of efficiency and environmental benefits. A review of literature shows that many studies have evaluated the potential of nanofluids for cooling different thermal systems. The second part of this paper presents an overview of the research, performance, and development of photovoltaic/thermal (PV/T) collector systems. Descriptions are made on water PV/T collector types, analytical and numerical models, and simulation and experimental works. The parameters affecting PV/T performance such as covered versus uncovered PV/T collectors, absorber plate parameters, and absorber configuration design types are extensively discussed. Exergy analysis shows that the coverless PV/T collector produces the largest total (electrical+thermal) exergy. Furthermore, PV/T collectors are observed to be very promising devices, and further work should be carried out to improve their efficiency and reduce their cost. Therefore, using nanofluids for cooling PV/T systems may be reasonable.

Original languageEnglish
Pages (from-to)348-367
Number of pages20
JournalRenewable and Sustainable Energy Reviews
Volume38
DOIs
Publication statusPublished - 2014

Fingerprint

Solar collectors
Cooling
Solar system
Exergy
Hot Temperature
Industrial applications
Numerical models
Analytical models
Thermodynamic properties
Optical properties
Heat transfer
Fluids
Computer simulation

Keywords

  • Absorber collector
  • Exergy
  • Nanofluids
  • Performance
  • Photovoltaic/thermal (PV/T)
  • Thermal and electrical efficiency

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Nanofluids for improved efficiency in cooling solar collectors - A review. / Al-Shamani, Ali Najah; Yazdi, Mohammad H.; Alghoul, M. A.; Abed, Azher M.; Ruslan, Mohd Hafidz; Mat, Sohif; Sopian, Kamaruzzaman.

In: Renewable and Sustainable Energy Reviews, Vol. 38, 2014, p. 348-367.

Research output: Contribution to journalArticle

Al-Shamani, Ali Najah ; Yazdi, Mohammad H. ; Alghoul, M. A. ; Abed, Azher M. ; Ruslan, Mohd Hafidz ; Mat, Sohif ; Sopian, Kamaruzzaman. / Nanofluids for improved efficiency in cooling solar collectors - A review. In: Renewable and Sustainable Energy Reviews. 2014 ; Vol. 38. pp. 348-367.
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