Upper limits for the work extraction by nanofluid-filled selective flat-plate solar collectors

Shamshirgaran, S.R. and Khalaji Assadi, M. and Badescu, V. and Al-Kayiem, H.H. (2018) Upper limits for the work extraction by nanofluid-filled selective flat-plate solar collectors. Energy, 160. pp. 875-885. ISSN 03605442

Full text not available from this repository.
Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

The objective of this paper is to investigate the effect of simultaneous using of nanofluid and selective absorber on the improvement of work extraction by a solar flat-plate collector (FPC). Applying a precise model for the exergy factor of solar incident, it is found that the maximum power generation is higher and lower than that by the Petela-Landesberg-Press (PLP) and Carnot model, respectively. Results showed that the influence of temperature ratio (a) and geometry factor (f) on the exergy efficiency is not such significant when a FPC is working on the Earth's surface. It is also revealed that the key role of the ratio of the absorber plate's emittance to its absorptance must be given attention since only the values lower than 0.174 are allowed by the second law requirements. Furthermore, the exergy efficiency and energy efficiency would experience 10.5 and near 8 enhancement for a 7.5 increase in collector's optical efficiency. Boosting the exergy efficiency by almost 4.1 at 4 volume concentration, demonstrated that nanofluid exploitation instead of plain water would be capable of improving the power generation by the collector. © 2018

Item Type: Article
Additional Information: cited By 17
Uncontrolled Keywords: Chemical equipment; Dust collectors; Energy efficiency; Exergy; Extraction; Nanofluidics, Exergy efficiencies; Flat-plate collector; Flat-plate solar collectors; Nanofluids; Optical efficiency; Selective absorber; Volume concentration; Work extraction, Collector efficiency, efficiency measurement; energy efficiency; equipment; exergy; exploitation; extraction method; numerical model; performance assessment; power generation; temperature effect
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 16:36
Last Modified: 09 Nov 2023 16:36
URI: https://khub.utp.edu.my/scholars/id/eprint/9905

Actions (login required)

View Item
View Item