Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid Nanofluids
This study reports an experimental investigation of pool boiling (PB) heat transfer performance of hybrid (two types of particles) and mono (single-particle) nanofluids consisting of Boron nitride (BN) and Silicon dioxide (SiO<sub>2</sub>) nanoparticles (NPs). While hybrid nanofluids (HN...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/19/2625 |
| _version_ | 1827722337324105728 |
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| author | Wagd Ajeeb S M Sohel Murshed |
| author_facet | Wagd Ajeeb S M Sohel Murshed |
| author_sort | Wagd Ajeeb |
| collection | DOAJ |
| description | This study reports an experimental investigation of pool boiling (PB) heat transfer performance of hybrid (two types of particles) and mono (single-particle) nanofluids consisting of Boron nitride (BN) and Silicon dioxide (SiO<sub>2</sub>) nanoparticles (NPs). While hybrid nanofluids (HNFs) were prepared in a total particle concentration of 0.05 vol.% with four different percentages of these two types of NPs (are 0.01/0.04, 0.02/ 0.03, 0.03/0.02, and 0.04/0.01 (BN vol.%/SiO<sub>2</sub> vol.%)), two mono nanofluids (MNFs) of BN and SiO<sub>2</sub> nanoparticles were prepared at the same total concentration of 0.05 vol.% for each NP type. Both nanofluids (NFs) were prepared in the base fluid (BF), which is the mixture of 15 vol.% of ethylene glycol (EG) and 85 vol.% of distilled water (DW). Then, the boiling heat transfer performance of these MNFs and HNFs was assessed by experimentation in a pool boiling test rig. The obtained results demonstrated good improvements in critical heat flux (CHF) and burnout heat flux (BHF) of both types of NFs. The CHF increased by up to 80% for BN-based MNF and up to 69% for HNF at 0.04 vol.% BN, which is the maximum percentage of BN into HNF, while the lowest improvement in CHF was 48% for the SiO<sub>2</sub>-based MNF compared to the BF. Similarly, the BHF was found to increase with the increasing in the loading of BN nanoparticles and a maximum enhancement of BHF of 103% for BN-based MNF was observed. These HNFs and MNFs exhibited significantly improved pool boiling heat transfer performance compared to this BF, and it became lower by increasing the percentage of SiO<sub>2</sub> NPs in the HNFs. |
| first_indexed | 2024-03-10T21:38:36Z |
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| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T21:38:36Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-4ba8c55e9d414e24bf43489e979555192023-11-19T14:48:34ZengMDPI AGNanomaterials2079-49912023-09-011319262510.3390/nano13192625Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid NanofluidsWagd Ajeeb0S M Sohel Murshed1IDMEC, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, PortugalIDMEC, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, PortugalThis study reports an experimental investigation of pool boiling (PB) heat transfer performance of hybrid (two types of particles) and mono (single-particle) nanofluids consisting of Boron nitride (BN) and Silicon dioxide (SiO<sub>2</sub>) nanoparticles (NPs). While hybrid nanofluids (HNFs) were prepared in a total particle concentration of 0.05 vol.% with four different percentages of these two types of NPs (are 0.01/0.04, 0.02/ 0.03, 0.03/0.02, and 0.04/0.01 (BN vol.%/SiO<sub>2</sub> vol.%)), two mono nanofluids (MNFs) of BN and SiO<sub>2</sub> nanoparticles were prepared at the same total concentration of 0.05 vol.% for each NP type. Both nanofluids (NFs) were prepared in the base fluid (BF), which is the mixture of 15 vol.% of ethylene glycol (EG) and 85 vol.% of distilled water (DW). Then, the boiling heat transfer performance of these MNFs and HNFs was assessed by experimentation in a pool boiling test rig. The obtained results demonstrated good improvements in critical heat flux (CHF) and burnout heat flux (BHF) of both types of NFs. The CHF increased by up to 80% for BN-based MNF and up to 69% for HNF at 0.04 vol.% BN, which is the maximum percentage of BN into HNF, while the lowest improvement in CHF was 48% for the SiO<sub>2</sub>-based MNF compared to the BF. Similarly, the BHF was found to increase with the increasing in the loading of BN nanoparticles and a maximum enhancement of BHF of 103% for BN-based MNF was observed. These HNFs and MNFs exhibited significantly improved pool boiling heat transfer performance compared to this BF, and it became lower by increasing the percentage of SiO<sub>2</sub> NPs in the HNFs.https://www.mdpi.com/2079-4991/13/19/2625pool boilingboron nitridesilicacritical heat fluxburnout heat fluxhybrid nanofluids |
| spellingShingle | Wagd Ajeeb S M Sohel Murshed Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid Nanofluids Nanomaterials pool boiling boron nitride silica critical heat flux burnout heat flux hybrid nanofluids |
| title | Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid Nanofluids |
| title_full | Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid Nanofluids |
| title_fullStr | Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid Nanofluids |
| title_full_unstemmed | Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid Nanofluids |
| title_short | Pool Boiling Heat Transfer Characteristics of SiO<sub>2</sub> and BN Nanoparticles Dispersed Mono and Hybrid Nanofluids |
| title_sort | pool boiling heat transfer characteristics of sio sub 2 sub and bn nanoparticles dispersed mono and hybrid nanofluids |
| topic | pool boiling boron nitride silica critical heat flux burnout heat flux hybrid nanofluids |
| url | https://www.mdpi.com/2079-4991/13/19/2625 |
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