Experimental study of nanofluids flow and heat transfer over a backward-facing step channel
The forced convective heat transfer and friction factor of nanofluids flow over a backward-facing step (BFS) in a channel with the base wall dissipating a uniform heat flux are experimentally investigated in this paper. Nanoparticles such as CuO and MgO dispersed in pure ethylene glycol (EG) with av...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/88898/ http://psasir.upm.edu.my/id/eprint/88898/1/NANO.pdf |
| _version_ | 1848860721559896064 |
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| author | Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal |
| author_facet | Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal |
| author_sort | Hilo, Ali Kareem |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The forced convective heat transfer and friction factor of nanofluids flow over a backward-facing step (BFS) in a channel with the base wall dissipating a uniform heat flux are experimentally investigated in this paper. Nanoparticles such as CuO and MgO dispersed in pure ethylene glycol (EG) with average diameters of 40 nm, and volume concentrations of 0, 1, 3, and 5% are considered as the working nanofluids. The results indicate that the heat transfer rate increases as the volume concentration of nanoparticles increased. The Nusselt number is enhanced up to 11% at 0.05 volume concentration compared to pure EG. The friction factor increases up to approximately 15% at Reynolds number (Re) of 5000 and volume concentrations of 0.01 and 0.03. The maximum value of the PEC in a BFS channel is 1.5 for the CuO-EG and 1.2 for the MgO-EG at a volume concentrations of 0.03 and Re = 20,000. |
| first_indexed | 2025-11-15T12:49:44Z |
| format | Article |
| id | upm-88898 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:49:44Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-888982021-10-04T23:42:26Z http://psasir.upm.edu.my/id/eprint/88898/ Experimental study of nanofluids flow and heat transfer over a backward-facing step channel Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal The forced convective heat transfer and friction factor of nanofluids flow over a backward-facing step (BFS) in a channel with the base wall dissipating a uniform heat flux are experimentally investigated in this paper. Nanoparticles such as CuO and MgO dispersed in pure ethylene glycol (EG) with average diameters of 40 nm, and volume concentrations of 0, 1, 3, and 5% are considered as the working nanofluids. The results indicate that the heat transfer rate increases as the volume concentration of nanoparticles increased. The Nusselt number is enhanced up to 11% at 0.05 volume concentration compared to pure EG. The friction factor increases up to approximately 15% at Reynolds number (Re) of 5000 and volume concentrations of 0.01 and 0.03. The maximum value of the PEC in a BFS channel is 1.5 for the CuO-EG and 1.2 for the MgO-EG at a volume concentrations of 0.03 and Re = 20,000. Elsevier 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88898/1/NANO.pdf Hilo, Ali Kareem and Abu Talib, Abd Rahim and Iborra, Antonio Acosta and Hameed Sultan, Mohamed Thariq and Abdul Hamid, Mohd Faisal (2020) Experimental study of nanofluids flow and heat transfer over a backward-facing step channel. Powder Technology, 372. 497 - 505. ISSN 0032-5910; ESSN: 1873-328X https://www.sciencedirect.com/science/article/pii/S0032591020305209 10.1016/j.powtec.2020.06.013 |
| spellingShingle | Hilo, Ali Kareem Abu Talib, Abd Rahim Iborra, Antonio Acosta Hameed Sultan, Mohamed Thariq Abdul Hamid, Mohd Faisal Experimental study of nanofluids flow and heat transfer over a backward-facing step channel |
| title | Experimental study of nanofluids flow and heat transfer over a backward-facing step channel |
| title_full | Experimental study of nanofluids flow and heat transfer over a backward-facing step channel |
| title_fullStr | Experimental study of nanofluids flow and heat transfer over a backward-facing step channel |
| title_full_unstemmed | Experimental study of nanofluids flow and heat transfer over a backward-facing step channel |
| title_short | Experimental study of nanofluids flow and heat transfer over a backward-facing step channel |
| title_sort | experimental study of nanofluids flow and heat transfer over a backward-facing step channel |
| url | http://psasir.upm.edu.my/id/eprint/88898/ http://psasir.upm.edu.my/id/eprint/88898/ http://psasir.upm.edu.my/id/eprint/88898/ http://psasir.upm.edu.my/id/eprint/88898/1/NANO.pdf |