Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applications
This work proposes and demonstrates the novel idea of using Fe _3 O _4 @SiO _2 core/shell structure nanoparticles (NPs) to improve the solar thermal conversion efficiency. Magnetite (Fe _3 O _4 ) NPs are synthesized by controlled co-precipitation method. Fe _3 O _4 @SiO _2 NPs are prepared based on...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/aa6c15 |
| _version_ | 1797747246930853888 |
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| author | Saud Khashan Sawsan Dagher Salahaddin Al Omari Nacir Tit Emad Elnajjar Bobby Mathew Ali Hilal-Alnaqbi |
| author_facet | Saud Khashan Sawsan Dagher Salahaddin Al Omari Nacir Tit Emad Elnajjar Bobby Mathew Ali Hilal-Alnaqbi |
| author_sort | Saud Khashan |
| collection | DOAJ |
| description | This work proposes and demonstrates the novel idea of using Fe _3 O _4 @SiO _2 core/shell structure nanoparticles (NPs) to improve the solar thermal conversion efficiency. Magnetite (Fe _3 O _4 ) NPs are synthesized by controlled co-precipitation method. Fe _3 O _4 @SiO _2 NPs are prepared based on sol–gel approach, then characterized. Water-based Fe _3 O _4 @SiO _2 nanofluid is prepared and usedto illustrate the photo-thermal conversion characteristics of a solar collector under solar simulator. The temperature rise characteristics of the nanofluids are investigated at different heights of the solar collector, for duration of 300 min, under a solar intensity of 1000 W m ^−2 . The experimental results show that Fe _3 O _4 @SiO _2 NPs have a core/shell structure with spherical morphology and size of about 400 nm. Fe _3 O _4 @SiO _2 /H _2 O nanofluid enhances the photo-thermal conversion efficiency compared with base fluid and Fe _3 O _4 /H _2 O nanofluid, since the silica coating improves both the thermodynamic stability of the nanofluid and the light absorption effectiveness of the NPs. At a concentration of 1 mg/1 ml of Fe _3 O _4 @SiO _2 /H _2 O, and with the utilization of kerosene into the solar collector, and exposure for radiation for 5 min, the photo-thermal conversion efficiency has shown an enhancement at the bottom of the collector of about 32.9% compared to the base fluid. |
| first_indexed | 2024-03-12T15:49:04Z |
| format | Article |
| id | doaj.art-8fe0feb442174f2c9e08e82c6a67da82 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:49:04Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-8fe0feb442174f2c9e08e82c6a67da822023-08-09T15:18:58ZengIOP PublishingMaterials Research Express2053-15912017-01-014505570110.1088/2053-1591/aa6c15Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applicationsSaud Khashan0Sawsan Dagher1Salahaddin Al Omari2Nacir Tit3Emad Elnajjar4Bobby Mathew5Ali Hilal-Alnaqbi6Department of Mechanical Engineering, Jordan University of Science and Technology , PO Box 3030, Irbid 22110, JordanDepartment of Mechanical Engineering, UAE University , PO Box 15551, Al-Ain, United Arab EmiratesDepartment of Mechanical Engineering, UAE University , PO Box 15551, Al-Ain, United Arab EmiratesDepartment of Physics, UAE University , PO Box 15551, Al-Ain, United Arab EmiratesDepartment of Mechanical Engineering, UAE University , PO Box 15551, Al-Ain, United Arab EmiratesDepartment of Mechanical Engineering, UAE University , PO Box 15551, Al-Ain, United Arab EmiratesDepartment of Mechanical Engineering, UAE University , PO Box 15551, Al-Ain, United Arab EmiratesThis work proposes and demonstrates the novel idea of using Fe _3 O _4 @SiO _2 core/shell structure nanoparticles (NPs) to improve the solar thermal conversion efficiency. Magnetite (Fe _3 O _4 ) NPs are synthesized by controlled co-precipitation method. Fe _3 O _4 @SiO _2 NPs are prepared based on sol–gel approach, then characterized. Water-based Fe _3 O _4 @SiO _2 nanofluid is prepared and usedto illustrate the photo-thermal conversion characteristics of a solar collector under solar simulator. The temperature rise characteristics of the nanofluids are investigated at different heights of the solar collector, for duration of 300 min, under a solar intensity of 1000 W m ^−2 . The experimental results show that Fe _3 O _4 @SiO _2 NPs have a core/shell structure with spherical morphology and size of about 400 nm. Fe _3 O _4 @SiO _2 /H _2 O nanofluid enhances the photo-thermal conversion efficiency compared with base fluid and Fe _3 O _4 /H _2 O nanofluid, since the silica coating improves both the thermodynamic stability of the nanofluid and the light absorption effectiveness of the NPs. At a concentration of 1 mg/1 ml of Fe _3 O _4 @SiO _2 /H _2 O, and with the utilization of kerosene into the solar collector, and exposure for radiation for 5 min, the photo-thermal conversion efficiency has shown an enhancement at the bottom of the collector of about 32.9% compared to the base fluid.https://doi.org/10.1088/2053-1591/aa6c15Fe3O4@SiO2 nanoparticlenanofluidphoto-thermal conversionsolar collector |
| spellingShingle | Saud Khashan Sawsan Dagher Salahaddin Al Omari Nacir Tit Emad Elnajjar Bobby Mathew Ali Hilal-Alnaqbi Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applications Materials Research Express Fe3O4@SiO2 nanoparticle nanofluid photo-thermal conversion solar collector |
| title | Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applications |
| title_full | Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applications |
| title_fullStr | Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applications |
| title_full_unstemmed | Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applications |
| title_short | Photo-thermal characteristics of water-based Fe3O4@SiO2 nanofluid for solar-thermal applications |
| title_sort | photo thermal characteristics of water based fe3o4 sio2 nanofluid for solar thermal applications |
| topic | Fe3O4@SiO2 nanoparticle nanofluid photo-thermal conversion solar collector |
| url | https://doi.org/10.1088/2053-1591/aa6c15 |
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