Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformity
This paper intentions to study the effect of using different tapered longitudinal section manifolds rather than the uniform one, in a Z shaped flat plate solar collector on; the uniformity of flow distribution, pressure drop, and consequently temperature profile. To this end, a 3D CFD model is plann...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-05-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X2200168X |
| _version_ | 1811333041840193536 |
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| author | Mohamed A. Karali Mathkar A. Alharthi H.A. Refaey |
| author_facet | Mohamed A. Karali Mathkar A. Alharthi H.A. Refaey |
| author_sort | Mohamed A. Karali |
| collection | DOAJ |
| description | This paper intentions to study the effect of using different tapered longitudinal section manifolds rather than the uniform one, in a Z shaped flat plate solar collector on; the uniformity of flow distribution, pressure drop, and consequently temperature profile. To this end, a 3D CFD model is planned to mimic a parallel piping network of Z configuration. Considering both fluid and piping body domains, and moreover, the inlet and outlet junctions, that would affect the resulted system pressure drop. The system has the following specifications: uniform header diameter of 20 mm, manifold and header lengths of 1150 mm, ten tubes, tubes diameter of 7 mm, tubes length of 1780 mm, horizontally mounted, and, with imposed solar radiation. Different taper ratios of the manifold, from 1.0 to 2.4 are studied against inlet ReD ranges from 300 to 2100. The model is validated with existing experimental outcomes from literature and showed an excellent agreement. Two indices are used to quantify the flow distribution uniformity. Generally the results concluded that, for enhanced flow distribution uniformity, an optimum taper ratio is important to be defined per each ReD. |
| first_indexed | 2024-04-13T16:46:05Z |
| format | Article |
| id | doaj.art-f96d82816c76448b9bd617dd3e7e6d62 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-13T16:46:05Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-f96d82816c76448b9bd617dd3e7e6d622022-12-22T02:39:04ZengElsevierCase Studies in Thermal Engineering2214-157X2022-05-0133101922Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformityMohamed A. Karali0Mathkar A. Alharthi1H.A. Refaey2Department of Mechanical Engineering, Faculty of Engineering and Technology, Future University in Egypt, 90 St., New Cairo, Egypt; Corresponding author.Department of Chemical Engineering, College of Engineering at Yanbu, Taibah University, Yanbu Al- Bahr, 41911, Saudi ArabiaDepartment of Mechanical Engineering, Faculty of Engineering at Shoubra, Benha University, 11629, Cairo, Egypt; Department of Mechanical Engineering, College of Engineering at Yanbu, Taibah University, Yanbu Al-Bahr, 41911, Saudi ArabiaThis paper intentions to study the effect of using different tapered longitudinal section manifolds rather than the uniform one, in a Z shaped flat plate solar collector on; the uniformity of flow distribution, pressure drop, and consequently temperature profile. To this end, a 3D CFD model is planned to mimic a parallel piping network of Z configuration. Considering both fluid and piping body domains, and moreover, the inlet and outlet junctions, that would affect the resulted system pressure drop. The system has the following specifications: uniform header diameter of 20 mm, manifold and header lengths of 1150 mm, ten tubes, tubes diameter of 7 mm, tubes length of 1780 mm, horizontally mounted, and, with imposed solar radiation. Different taper ratios of the manifold, from 1.0 to 2.4 are studied against inlet ReD ranges from 300 to 2100. The model is validated with existing experimental outcomes from literature and showed an excellent agreement. Two indices are used to quantify the flow distribution uniformity. Generally the results concluded that, for enhanced flow distribution uniformity, an optimum taper ratio is important to be defined per each ReD.http://www.sciencedirect.com/science/article/pii/S2214157X2200168XSolar energyPipes networksFlat plate solar collectorZ configurationFlow uniformityTapered manifold |
| spellingShingle | Mohamed A. Karali Mathkar A. Alharthi H.A. Refaey Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformity Case Studies in Thermal Engineering Solar energy Pipes networks Flat plate solar collector Z configuration Flow uniformity Tapered manifold |
| title | Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformity |
| title_full | Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformity |
| title_fullStr | Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformity |
| title_full_unstemmed | Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformity |
| title_short | Influence of using different tapered longitudinal section manifolds in a Z shaped flat plate solar collector on flow distribution uniformity |
| title_sort | influence of using different tapered longitudinal section manifolds in a z shaped flat plate solar collector on flow distribution uniformity |
| topic | Solar energy Pipes networks Flat plate solar collector Z configuration Flow uniformity Tapered manifold |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X2200168X |
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