Cargando…

Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation

Parabolic trough collectors (PTC) are one of the most established solar concentrating systems which have been used in a wide variety of applications. Enhancing their performance is critical to establish them as a viable technology. Internal obstacles are an intriguing way for improving the collector...

Descripción completa

Detalles Bibliográficos
Autores principales: Fahim, Tayeb, Laouedj, Samir, Abderrahmane, Aissa, Alotaibi, Sorour, Younis, Obai, Ali, Hafiz Muhammad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839491/
https://www.ncbi.nlm.nih.gov/pubmed/35159764
http://dx.doi.org/10.3390/nano12030419
_version_ 1784650382482341888
author Fahim, Tayeb
Laouedj, Samir
Abderrahmane, Aissa
Alotaibi, Sorour
Younis, Obai
Ali, Hafiz Muhammad
author_facet Fahim, Tayeb
Laouedj, Samir
Abderrahmane, Aissa
Alotaibi, Sorour
Younis, Obai
Ali, Hafiz Muhammad
author_sort Fahim, Tayeb
collection PubMed
description Parabolic trough collectors (PTC) are one of the most established solar concentrating systems which have been used in a wide variety of applications. Enhancing their performance is critical to establish them as a viable technology. Internal obstacles are an intriguing way for improving the collector’s performance. However, the usage of obstacles results in increasing pressure loss. The purpose of this research is to numerically explore the impact of introducing obstacles to the receiver tube of a parabolic trough collector on heat transmission in PTCs and its overall thermal performance. The first part analyzed the effects of geometrical parameters, orientation angle (α = 45°, 90° or 135°), and spacing of obstacles (P/D = 1, 2, or 3) on the fluid motion, heat transfer, and performance. Then, a non-uniform heat flow was applied to the absorber’s outer surface. The effects of nanoparticles type, temperature profile, and heat transfer performance of three different nanofluids (Cu/thermal oil, Al(2)O(3)/thermal oil, andTiO(2)/thermal oil) were studied in the second part. The simulation results show that, the friction factor increased when P/D decreases, and that the absorber tube with obstacles discs (α = 90°) and P/D = 2 achieved the best thermal performance. Additionally, increasing the concentration of solid nanoparticles in thermal oil improves heat transmission, and the Cu nanofluid has the greatest Nusselt number.
format Online
Article
Text
id pubmed-8839491
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-88394912022-02-13 Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation Fahim, Tayeb Laouedj, Samir Abderrahmane, Aissa Alotaibi, Sorour Younis, Obai Ali, Hafiz Muhammad Nanomaterials (Basel) Article Parabolic trough collectors (PTC) are one of the most established solar concentrating systems which have been used in a wide variety of applications. Enhancing their performance is critical to establish them as a viable technology. Internal obstacles are an intriguing way for improving the collector’s performance. However, the usage of obstacles results in increasing pressure loss. The purpose of this research is to numerically explore the impact of introducing obstacles to the receiver tube of a parabolic trough collector on heat transmission in PTCs and its overall thermal performance. The first part analyzed the effects of geometrical parameters, orientation angle (α = 45°, 90° or 135°), and spacing of obstacles (P/D = 1, 2, or 3) on the fluid motion, heat transfer, and performance. Then, a non-uniform heat flow was applied to the absorber’s outer surface. The effects of nanoparticles type, temperature profile, and heat transfer performance of three different nanofluids (Cu/thermal oil, Al(2)O(3)/thermal oil, andTiO(2)/thermal oil) were studied in the second part. The simulation results show that, the friction factor increased when P/D decreases, and that the absorber tube with obstacles discs (α = 90°) and P/D = 2 achieved the best thermal performance. Additionally, increasing the concentration of solid nanoparticles in thermal oil improves heat transmission, and the Cu nanofluid has the greatest Nusselt number. MDPI 2022-01-27 /pmc/articles/PMC8839491/ /pubmed/35159764 http://dx.doi.org/10.3390/nano12030419 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fahim, Tayeb
Laouedj, Samir
Abderrahmane, Aissa
Alotaibi, Sorour
Younis, Obai
Ali, Hafiz Muhammad
Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation
title Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation
title_full Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation
title_fullStr Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation
title_full_unstemmed Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation
title_short Heat Transfer Enhancement in Parabolic through Solar Receiver: A Three-Dimensional Numerical Investigation
title_sort heat transfer enhancement in parabolic through solar receiver: a three-dimensional numerical investigation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839491/
https://www.ncbi.nlm.nih.gov/pubmed/35159764
http://dx.doi.org/10.3390/nano12030419
work_keys_str_mv AT fahimtayeb heattransferenhancementinparabolicthroughsolarreceiverathreedimensionalnumericalinvestigation
AT laouedjsamir heattransferenhancementinparabolicthroughsolarreceiverathreedimensionalnumericalinvestigation
AT abderrahmaneaissa heattransferenhancementinparabolicthroughsolarreceiverathreedimensionalnumericalinvestigation
AT alotaibisorour heattransferenhancementinparabolicthroughsolarreceiverathreedimensionalnumericalinvestigation
AT younisobai heattransferenhancementinparabolicthroughsolarreceiverathreedimensionalnumericalinvestigation
AT alihafizmuhammad heattransferenhancementinparabolicthroughsolarreceiverathreedimensionalnumericalinvestigation