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Open AccessReview

Thermal Performance Enhancement in Flat Plate Solar Collector Solar Water Heater: A Review

Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
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Author to whom correspondence should be addressed.
Processes 2020, 8(7), 756; https://doi.org/10.3390/pr8070756
Received: 8 May 2020 / Revised: 11 June 2020 / Accepted: 23 June 2020 / Published: 29 June 2020
Various studies to improve the thermal performance of flat plate solar collector (FPSC) solar water heater have been conducted, and more are currently in progress. This study aims to review existing methods on thermal performance enhancement for FPSC and discuss on heat-transfer enhancement using vibration and its potential application for FPSC. Ten methods for improving thermal performance are identified, which include applications of nanofluids, absorber coatings, phase change materials (PCM), thermal performance enhancers, FPSC design modifications, polymer materials, heat loss reduction, mini and micro channel and heat-transfer enhancement using vibration. An examination of heat-transfer enhancement using vibration in low frequency ranges for an evacuated-tube solar collector (ETSC) solar water heater system showed that it can potentially achieve heat-transfer enhancement of up to 78%. Nevertheless, there is still a lack of research on the applications of heat-transfer enhancement using vibration on FPSC to date. View Full-Text
Keywords: flat-plate collector; solar water heater; heat-transfer enhancement using vibration; thermal performance; infrasound flat-plate collector; solar water heater; heat-transfer enhancement using vibration; thermal performance; infrasound
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Shamsul Azha, N.I.; Hussin, H.; Nasif, M.S.; Hussain, T. Thermal Performance Enhancement in Flat Plate Solar Collector Solar Water Heater: A Review. Processes 2020, 8, 756.

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