Research and review study of solar dish concentrators with different nanofluids and different shapes of cavity receiver: Experimental tests

Reyhaneh Loni, E. Askari Asli-Areh, B. Ghobadian, A.B. Kasaeian, Sh. Gorjian, G. Najafi and Evangelos Bellos

Renewable Energy, 2020, vol. 145, issue C, 783-804

Abstract: In this study, the thermal performance of a solar dish concentrator with different cavity receivers and nanofluids was experimentally studied. The first step in this work is a detailed literature review of the studies about the solar dish cavity receivers. The second step is the experimental investigation of a solar dish concentrator with a cubical cavity receiver using Al2O3/oil nanofluid and pure thermal oil. The last step of this work is the comparison of the found results with others from the literature in order to make an overall overview of cavity receivers. The finally presented results of the dish concentrator with different cavity receivers (including cubical, cylindrical, and hemispherical cavities) using different nanofluids (including Al2O3/oil, MWCNT/oil, and SiO2/oil nanofluids are reported based on a same experimental setup that was designed and built by authors of this research. The results reveal that the hemispherical and the cubical cavities are the most effective designs, while the cylindrical cavity presents lower performance. Moreover, it was found that the use of nanofluids always leads to thermal performance enhancement. More specifically, it was found that the mean thermal efficiency enhancement with the use of nanofluids is 12.90% with the hemispherical cavity, 5.84% with the cubical cavity and 1.44% with the cylindrical cavity.

Keywords: Al2O3/oil nanofluid; Cubical cavity receiver; Different cavity shapes; Different nanofluid application; Experimental investigation; Solar dish concentrator (search for similar items in EconPapers)
Date: 2020
References: Add references at CitEc
Citations: View citations in EconPapers (11)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148119308808
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:145:y:2020:i:c:p:783-804

DOI: 10.1016/j.renene.2019.06.056

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().