The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluid
Utilizing a hybrid nanofluid is a promising solution for enhancing the thermal performance of the solar collector in a sustainable manner. In the present work, the effect of using magnesium oxide/multi-walled carbon nanotubes (MgO/MWCNT) hybrid nanofluid on the thermal performance of the evacuated t...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-05-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22002039 |
| _version_ | 1811333066531012608 |
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| author | Shady M. Henein Ahmed A. Abdel-Rehim |
| author_facet | Shady M. Henein Ahmed A. Abdel-Rehim |
| author_sort | Shady M. Henein |
| collection | DOAJ |
| description | Utilizing a hybrid nanofluid is a promising solution for enhancing the thermal performance of the solar collector in a sustainable manner. In the present work, the effect of using magnesium oxide/multi-walled carbon nanotubes (MgO/MWCNT) hybrid nanofluid on the thermal performance of the evacuated tube solar collector is experimentally investigated. Four different weight ratios of (80:20), (70:30), (60:40), and (50:50) are used for a hybrid of MgO with MWCNTs in a water base, respectively. The experiments are performed at a 0.02% particle concentration and at various volume flow rates ranging from 1 to 3 L/min. The results show an enhancement in the energy and exergy efficiencies with the increase in the weight ratios of MWCNTs nanoparticles and volume flow rate. The enhancement of the energy and exergy efficiencies of the collector is 55.83% and 77.14%, respectively, for MgO/MWCNT (50:50) hybrid nanofluid. It is found that increasing the weight ratio of MWCNTs nanoparticles from 20% to 30% achieves a significant increase in the collector efficiency enhancement compared to other hybrid nanofluids. The results conclude that MgO/MWCNT (50:50) performs better than all other hybrid nanofluids at all volume flow rates and is closer to MWCNT/water nanofluid. |
| first_indexed | 2024-04-13T16:46:17Z |
| format | Article |
| id | doaj.art-2fd38212a3ea49eeba46bab672f558db |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-13T16:46:17Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-2fd38212a3ea49eeba46bab672f558db2022-12-22T02:39:04ZengElsevierCase Studies in Thermal Engineering2214-157X2022-05-0133101957The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluidShady M. Henein0Ahmed A. Abdel-Rehim1Corresponding author.; The British University in Egypt, Department of Mechanical Engineering, Centre for Renewable Energy (CRE), Cairo, EgyptThe British University in Egypt, Department of Mechanical Engineering, Centre for Renewable Energy (CRE), Cairo, EgyptUtilizing a hybrid nanofluid is a promising solution for enhancing the thermal performance of the solar collector in a sustainable manner. In the present work, the effect of using magnesium oxide/multi-walled carbon nanotubes (MgO/MWCNT) hybrid nanofluid on the thermal performance of the evacuated tube solar collector is experimentally investigated. Four different weight ratios of (80:20), (70:30), (60:40), and (50:50) are used for a hybrid of MgO with MWCNTs in a water base, respectively. The experiments are performed at a 0.02% particle concentration and at various volume flow rates ranging from 1 to 3 L/min. The results show an enhancement in the energy and exergy efficiencies with the increase in the weight ratios of MWCNTs nanoparticles and volume flow rate. The enhancement of the energy and exergy efficiencies of the collector is 55.83% and 77.14%, respectively, for MgO/MWCNT (50:50) hybrid nanofluid. It is found that increasing the weight ratio of MWCNTs nanoparticles from 20% to 30% achieves a significant increase in the collector efficiency enhancement compared to other hybrid nanofluids. The results conclude that MgO/MWCNT (50:50) performs better than all other hybrid nanofluids at all volume flow rates and is closer to MWCNT/water nanofluid.http://www.sciencedirect.com/science/article/pii/S2214157X22002039Evacuated tube solar collectorHybrid nanofluidSolar energyThermal efficiencyEnergyExergy |
| spellingShingle | Shady M. Henein Ahmed A. Abdel-Rehim The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluid Case Studies in Thermal Engineering Evacuated tube solar collector Hybrid nanofluid Solar energy Thermal efficiency Energy Exergy |
| title | The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluid |
| title_full | The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluid |
| title_fullStr | The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluid |
| title_full_unstemmed | The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluid |
| title_short | The performance response of a heat pipe evacuated tube solar collector using MgO/MWCNT hybrid nanofluid as a working fluid |
| title_sort | performance response of a heat pipe evacuated tube solar collector using mgo mwcnt hybrid nanofluid as a working fluid |
| topic | Evacuated tube solar collector Hybrid nanofluid Solar energy Thermal efficiency Energy Exergy |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22002039 |
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