Effect of electromagnetic field on the thermal efficiency of concentrated solar collector : experimental study
In this work, the effect of electromagnetic field on thermal performance of concentrated parabolic trough solar collector is studied experimentally. a two-axis tracking parabolic trough collector formed of a reflector (mirror tapes matrix), of (2m *1m), and an absorber copper tube (receiver) is desi...
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| Published in: | The Iraqi journal for mechanical and materials engineering. Vol. 22; no. 1; pp. 42 - 51 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Babylon, Iraq
University of Babylon, College of Engineering
2022
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | In this work, the effect of electromagnetic field on thermal performance of concentrated parabolic trough solar collector is studied experimentally. a two-axis tracking parabolic trough collector formed of a reflector (mirror tapes matrix), of (2m *1m), and an absorber copper tube (receiver) is designed. water and water-based magnetic iron oxide (Fe3O4) nanofluid are used as heat transfer fluid in the collector. three volume concentrations (0.3%, 0.5%, and 0.9%) of nanoparticles are investigated under a magnetic flux of (3.2, 4.3, 6.2, and 7.9*103 gauss), which is installed at absorber inlet, middle, and exit. the three coils are connected to a dc-generator to control the electromagnetic field. the electromagnetic field effect on water flow in the absorber is found weak. a significant thermal improvement is figured when utilizing ferrofluid as a heat transfer fluid in the absorber. it is represented by higher temperature distributions in the absorber and higher solar collector efficiency compared with base fluid. |
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| ISSN: | 2076-1819 2313-3783 |