CFD modelling and performance evaluation of multi-pass solar air heaters

Moustafa Al-Damook, Zainalabdeen H. Obaid, Mansour Al Qubeissi, Darron Dixon-Hardy, Joshua Cottom, Peter J. Heggs

Research output: Contribution to journalArticle

Abstract

This paper investigates the impacts of flow configurations on the thermal performance of solar heater system. Recycled aluminium cans (RAC) have been utilised as turbulators with a double pass single duct solar air collector. CFD software of COMSOL Multiphysics V5.3a is used to model three designs: co-current (model A), counter-current (model B), and U-shape (model C). The numerical results show that the U-shape design offers 5.4% and 6.5%, respectively, greater thermal performance compared with the co-current and counter-current flow models. An outdoor experiment is performed based on the numerical modelling of flow configurations. The experimental setup is examined for three configurations of model C, namely, solar air heater (SAH) without RAC model C-I (plain model), SAH with in-line RAC layout (model C-II), and SAH with staggered RAC layout (model C-III). Furthermore, the double pass single duct solar air collector (model C) design is in a good agreement with the experimental data. The experimental study reveals that model C-III has a better thermal efficiency of 60.2%, compared to those of model C-II, 53.1%, and model C-I, 49.4%.
LanguageEnglish
Pages(In-press)
Number of pages40
JournalNumerical Heat Transfer; Part A: Applications
Volume(In-press)
DOIs
Publication statusAccepted/In press - 23 May 2019

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charge flow devices
heaters
Performance Evaluation
Computational fluid dynamics
evaluation
air
Air
Modeling
Aluminum
Model
aluminum
ducts
layouts
Ducts
accumulators
Configuration
Layout
counters
configurations
Shape Design

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Al-Damook, M., Obaid, Z. H., Al Qubeissi, M., Dixon-Hardy, D., Cottom, J., & Heggs, P. J. (Accepted/In press). CFD modelling and performance evaluation of multi-pass solar air heaters. Numerical Heat Transfer; Part A: Applications, (In-press), (In-press). https://doi.org/10.1080/10407782.2019.1637228

CFD modelling and performance evaluation of multi-pass solar air heaters. / Al-Damook, Moustafa; Obaid, Zainalabdeen H.; Al Qubeissi, Mansour; Dixon-Hardy, Darron; Cottom, Joshua; Heggs, Peter J.

In: Numerical Heat Transfer; Part A: Applications, Vol. (In-press), 23.05.2019, p. (In-press).

Research output: Contribution to journalArticle

Al-Damook, Moustafa ; Obaid, Zainalabdeen H. ; Al Qubeissi, Mansour ; Dixon-Hardy, Darron ; Cottom, Joshua ; Heggs, Peter J. / CFD modelling and performance evaluation of multi-pass solar air heaters. In: Numerical Heat Transfer; Part A: Applications. 2019 ; Vol. (In-press). pp. (In-press).
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abstract = "This paper investigates the impacts of flow configurations on the thermal performance of solar heater system. Recycled aluminium cans (RAC) have been utilised as turbulators with a double pass single duct solar air collector. CFD software of COMSOL Multiphysics V5.3a is used to model three designs: co-current (model A), counter-current (model B), and U-shape (model C). The numerical results show that the U-shape design offers 5.4{\%} and 6.5{\%}, respectively, greater thermal performance compared with the co-current and counter-current flow models. An outdoor experiment is performed based on the numerical modelling of flow configurations. The experimental setup is examined for three configurations of model C, namely, solar air heater (SAH) without RAC model C-I (plain model), SAH with in-line RAC layout (model C-II), and SAH with staggered RAC layout (model C-III). Furthermore, the double pass single duct solar air collector (model C) design is in a good agreement with the experimental data. The experimental study reveals that model C-III has a better thermal efficiency of 60.2{\%}, compared to those of model C-II, 53.1{\%}, and model C-I, 49.4{\%}.",
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