Dynamic simulation and exergetic analysis of a solar thermal collector installation

Solar collectors are active solar devices which help reducing the energy consumption in buildings. In this paper, a real installation of solar collectors is analysed under different collector array configurations. Also, both energetic and exergetic analyses have been developed, for both general bala...

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Autores principales:	David García-Menéndez, Juan Carlos Ríos-Fernández, Ana María Blanco-Marigorta, María José Suárez-López
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Solar thermal collector Exergetic analysis TRNSYS dynamic model Exergetic efficiency Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/946b54526d5e4286a0bfbe87f7244958
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spelling	oai:doaj.org-article:946b54526d5e4286a0bfbe87f72449582021-11-18T04:45:45ZDynamic simulation and exergetic analysis of a solar thermal collector installation1110-016810.1016/j.aej.2021.06.075https://doaj.org/article/946b54526d5e4286a0bfbe87f72449582022-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S111001682100435Xhttps://doaj.org/toc/1110-0168Solar collectors are active solar devices which help reducing the energy consumption in buildings. In this paper, a real installation of solar collectors is analysed under different collector array configurations. Also, both energetic and exergetic analyses have been developed, for both general balance and specific variables. To apply these analyses, a TRNSYS dynamic model has been built and validated with experimental data obtained in the real installation. The values of the representative variables have been examined in different points of the installation, resulting in a description of the installation operation and parameters influencing the exergetic efficiency. Although parallel connections of the collectors are commonly used, in this work, simulations and experiments have been carried out with both parallel and series connections. As a result, no significant differences regarding the array configurations have been found. The values of the exergetic efficiency of the collectors are always very low (within 1% and 4.6%), no matter the configuration nor the irradiance. Its maximum value was reached after about 5 h of operation, for all configurations. The values obtained for the whole installation are in the range of 20–50% for the energetic efficiency, whereas the exergetic efficiency is always lower than 1.5%.David García-MenéndezJuan Carlos Ríos-FernándezAna María Blanco-MarigortaMaría José Suárez-LópezElsevierarticleSolar thermal collectorExergetic analysisTRNSYS dynamic modelExergetic efficiencyEngineering (General). Civil engineering (General)TA1-2040ENAlexandria Engineering Journal, Vol 61, Iss 2, Pp 1665-1677 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Solar thermal collector Exergetic analysis TRNSYS dynamic model Exergetic efficiency Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Solar thermal collector Exergetic analysis TRNSYS dynamic model Exergetic efficiency Engineering (General). Civil engineering (General) TA1-2040 David García-Menéndez Juan Carlos Ríos-Fernández Ana María Blanco-Marigorta María José Suárez-López Dynamic simulation and exergetic analysis of a solar thermal collector installation
description	Solar collectors are active solar devices which help reducing the energy consumption in buildings. In this paper, a real installation of solar collectors is analysed under different collector array configurations. Also, both energetic and exergetic analyses have been developed, for both general balance and specific variables. To apply these analyses, a TRNSYS dynamic model has been built and validated with experimental data obtained in the real installation. The values of the representative variables have been examined in different points of the installation, resulting in a description of the installation operation and parameters influencing the exergetic efficiency. Although parallel connections of the collectors are commonly used, in this work, simulations and experiments have been carried out with both parallel and series connections. As a result, no significant differences regarding the array configurations have been found. The values of the exergetic efficiency of the collectors are always very low (within 1% and 4.6%), no matter the configuration nor the irradiance. Its maximum value was reached after about 5 h of operation, for all configurations. The values obtained for the whole installation are in the range of 20–50% for the energetic efficiency, whereas the exergetic efficiency is always lower than 1.5%.
format	article
author	David García-Menéndez Juan Carlos Ríos-Fernández Ana María Blanco-Marigorta María José Suárez-López
author_facet	David García-Menéndez Juan Carlos Ríos-Fernández Ana María Blanco-Marigorta María José Suárez-López
author_sort	David García-Menéndez
title	Dynamic simulation and exergetic analysis of a solar thermal collector installation
title_short	Dynamic simulation and exergetic analysis of a solar thermal collector installation
title_full	Dynamic simulation and exergetic analysis of a solar thermal collector installation
title_fullStr	Dynamic simulation and exergetic analysis of a solar thermal collector installation
title_full_unstemmed	Dynamic simulation and exergetic analysis of a solar thermal collector installation
title_sort	dynamic simulation and exergetic analysis of a solar thermal collector installation
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/946b54526d5e4286a0bfbe87f7244958
work_keys_str_mv	AT davidgarciamenendez dynamicsimulationandexergeticanalysisofasolarthermalcollectorinstallation AT juancarlosriosfernandez dynamicsimulationandexergeticanalysisofasolarthermalcollectorinstallation AT anamariablancomarigorta dynamicsimulationandexergeticanalysisofasolarthermalcollectorinstallation AT mariajosesuarezlopez dynamicsimulationandexergeticanalysisofasolarthermalcollectorinstallation
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Dynamic simulation and exergetic analysis of a solar thermal collector installation

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