Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids
Many strategies have been attempted for accomplishing the needed changes in the heat-transfer rate in closed cavities in recent years. Some strategies used include the addition of flexible or hard partitions to the cavities (to split them into various pieces), thickening the borders, providing fins...
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| Aineistotyyppi: | Artikkeli |
| Kieli: | English |
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MDPI AG
2022-07-01
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| Sarja: | Nanomaterials |
| Aiheet: | |
| Linkit: | https://www.mdpi.com/2079-4991/12/14/2481 |
| _version_ | 1827618761700540416 |
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| author | Farhan Lafta Rashid Ahmed Kadhim Hussein Emad Hasani Malekshah Aissa Abderrahmane Kamel Guedri Obai Younis |
| author_facet | Farhan Lafta Rashid Ahmed Kadhim Hussein Emad Hasani Malekshah Aissa Abderrahmane Kamel Guedri Obai Younis |
| author_sort | Farhan Lafta Rashid |
| collection | DOAJ |
| description | Many strategies have been attempted for accomplishing the needed changes in the heat-transfer rate in closed cavities in recent years. Some strategies used include the addition of flexible or hard partitions to the cavities (to split them into various pieces), thickening the borders, providing fins to the cavities, or altering the forms or cavity angles. Each of these methods may be used to increase or decrease heat transmission. Many computational and experimental investigations of heat transport in various cavity shapes have been conducted. The majority of studies focused on improving the thermal efficiency of heat transmission in various cavity containers. This paper introduced a review of experimental, numerical, and analytical studies related to heat transfer analyses in different geometries, such as circular, cylindrical, hexagonal, and rectangular cavities. Results of the evaluated studies indicate that the fin design increased heat transmission and sped up the melting time of the PCM; the optimal wind incidence angle for the maximum loss of combined convective heat depends on the tilt angle of the cavity and wind speed. The Nusselt number graphs behave differently when decreasing the Richardson number. Comparatively, the natural heat transfer process dominates at Ri = 10, but lid motion is absent at Ri = 1. For a given Ri and Pr, the cavity without a block performed better than the cavity with a square or circular block. The heat transfer coefficient at the heating sources has been established as a performance indicator. Hot source fins improve heat transmission and reduce gallium melting time. |
| first_indexed | 2024-03-09T10:14:56Z |
| format | Article |
| id | doaj.art-f1fe64e96e4847848850b6f5b316f5bd |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T10:14:56Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-f1fe64e96e4847848850b6f5b316f5bd2023-12-01T22:31:28ZengMDPI AGNanomaterials2079-49912022-07-011214248110.3390/nano12142481Review of Heat Transfer Analysis in Different Cavity Geometries with and without NanofluidsFarhan Lafta Rashid0Ahmed Kadhim Hussein1Emad Hasani Malekshah2Aissa Abderrahmane3Kamel Guedri4Obai Younis5Petroleum Engineering Department, College of Engineering, University of Kerbala, Karbala 56001, IraqMechanical Engineering Department, College of Engineering, University of Babylon, Babylon City 51002, IraqDepartment of Power Engineering and Turbomachinery, Silesian University of Technology, 44-100 Gliwice, PolandLaboratoire de Physique Quantique de la Matière et Modélisation Mathématique (LPQ3M), University of Mascara, Mascara 29000, AlgeriaMechanical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah 21955, Saudi ArabiaDepartment of Mechanical Engineering, College of Engineering at Wadi Addwaser, Prince Sattam Bin Abdulaziz University, Wadi Addwaser 11991, Saudi ArabiaMany strategies have been attempted for accomplishing the needed changes in the heat-transfer rate in closed cavities in recent years. Some strategies used include the addition of flexible or hard partitions to the cavities (to split them into various pieces), thickening the borders, providing fins to the cavities, or altering the forms or cavity angles. Each of these methods may be used to increase or decrease heat transmission. Many computational and experimental investigations of heat transport in various cavity shapes have been conducted. The majority of studies focused on improving the thermal efficiency of heat transmission in various cavity containers. This paper introduced a review of experimental, numerical, and analytical studies related to heat transfer analyses in different geometries, such as circular, cylindrical, hexagonal, and rectangular cavities. Results of the evaluated studies indicate that the fin design increased heat transmission and sped up the melting time of the PCM; the optimal wind incidence angle for the maximum loss of combined convective heat depends on the tilt angle of the cavity and wind speed. The Nusselt number graphs behave differently when decreasing the Richardson number. Comparatively, the natural heat transfer process dominates at Ri = 10, but lid motion is absent at Ri = 1. For a given Ri and Pr, the cavity without a block performed better than the cavity with a square or circular block. The heat transfer coefficient at the heating sources has been established as a performance indicator. Hot source fins improve heat transmission and reduce gallium melting time.https://www.mdpi.com/2079-4991/12/14/2481heat transmission augmentationnanofluidscavitynatural convectionforced convectionmixed convection |
| spellingShingle | Farhan Lafta Rashid Ahmed Kadhim Hussein Emad Hasani Malekshah Aissa Abderrahmane Kamel Guedri Obai Younis Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids Nanomaterials heat transmission augmentation nanofluids cavity natural convection forced convection mixed convection |
| title | Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids |
| title_full | Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids |
| title_fullStr | Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids |
| title_full_unstemmed | Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids |
| title_short | Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids |
| title_sort | review of heat transfer analysis in different cavity geometries with and without nanofluids |
| topic | heat transmission augmentation nanofluids cavity natural convection forced convection mixed convection |
| url | https://www.mdpi.com/2079-4991/12/14/2481 |
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