Comparing the performance of passive and active double and single slope solar stills incorporated with parabolic trough collector via energy, exergy and productivity

Hamdy Hassan

Renewable Energy, 2020, vol. 148, issue C, 437-450

Abstract: An experimental work is presented on comparing the performance of passive and active single slope (SS) and double slope (DS) solar stills without and coupled with parabolic trough collector (PTC). The comparison is based on still freshwater productivity, and energy and exergy efficiencies. This work is performed at hot (summer) and cold (winter) climate conditions under meteorological conditions of upper Egypt. Results illustrate that the freshwater productivity and efficiency of the solar stills with or without PTC in summer is greater than winter. Moreover, DS still has greater freshwater productivity, energy and exergy efficiencies than SS. The maximum freshwater productivity increases by about 6% in case of using DS still with PTC (DS + PTC) instead of SS with PTC (SS + PTC). Coupling PTC with SS still rises its daily yield by 115% and 85% and its average daily energy efficiency by 38.3% and 49.1% in summer and winter, respectively. The maximum average daily energy efficiency of the DS + PTC system is 49.09% and its total efficiency is 22.96% with an increase of 16.5% and 5%, respectively compared to SS + PTC. The average daily exergy efficiency of the DS only and DS + PTC in summer increases by 3.3% and 2.6%, respectively compared to the corresponding SS.

Keywords: Single and double slope still; PTC; Performance; Freshwater; Energy and exergy efficiencies; Productivity (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148119315411
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:148:y:2020:i:c:p:437-450

DOI: 10.1016/j.renene.2019.10.050

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 ().