The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube
We studied the optimization of a linear parabolic solar collector with a twisted tape (strip) aimed at increasing heat transfer in this paper. This research contains three sections. The first section focuses on the geometric study of various tapes, including twisted strips, wavy strips, and plain st...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-02-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22000065 |
| _version_ | 1798024752171843584 |
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| author | Fatemeh Harsij Sani Mohsen Pourfallah Mosayeb Gholinia |
| author_facet | Fatemeh Harsij Sani Mohsen Pourfallah Mosayeb Gholinia |
| author_sort | Fatemeh Harsij Sani |
| collection | DOAJ |
| description | We studied the optimization of a linear parabolic solar collector with a twisted tape (strip) aimed at increasing heat transfer in this paper. This research contains three sections. The first section focuses on the geometric study of various tapes, including twisted strips, wavy strips, and plain strips with a rectangular cross-section. In the second section, we examined the tape with the best efficiency at four heights. Finally, we assessed the effect of the H2O–Ag/MoS2 hybrid nanofluid in the third section. To this end, we simulated the governing equations and nanofluid flow in the collector using the ANSYS-Fluent software by employing the K−ε RNG turbulence model. The results revealed that the use of the twisted strip model brings the highest efficiency rate than other modes. Accordingly, the heat transfer rate and the outlet temperature for the twisted strip with the highest height increase by 14.33% and 0.39%, respectively compared to the lower heights. Besides, the use of composite nanofluid with a 5% concentration in a twisted strip with a height of 40 mm provides the highest heat transfer rate. Also, the outlet temperature difference with the fluid inlet increases by 4.93% compared to lower concentrations. |
| first_indexed | 2024-04-11T18:07:40Z |
| format | Article |
| id | doaj.art-8c6125646a3e4c108b55ad5054ad32d1 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-11T18:07:40Z |
| publishDate | 2022-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-8c6125646a3e4c108b55ad5054ad32d12022-12-22T04:10:15ZengElsevierCase Studies in Thermal Engineering2214-157X2022-02-0130101760The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tubeFatemeh Harsij Sani0Mohsen Pourfallah1Mosayeb Gholinia2Department of Mechanical Engineering, Mazandaran University of Science and Technology, Babol, IranDepartment of Mechanical Engineering, Mazandaran University of Science and Technology, Babol, Iran; Corresponding author.Department of Mechanical Engineering, Babol Noushirvani University of Technology, Babol, IranWe studied the optimization of a linear parabolic solar collector with a twisted tape (strip) aimed at increasing heat transfer in this paper. This research contains three sections. The first section focuses on the geometric study of various tapes, including twisted strips, wavy strips, and plain strips with a rectangular cross-section. In the second section, we examined the tape with the best efficiency at four heights. Finally, we assessed the effect of the H2O–Ag/MoS2 hybrid nanofluid in the third section. To this end, we simulated the governing equations and nanofluid flow in the collector using the ANSYS-Fluent software by employing the K−ε RNG turbulence model. The results revealed that the use of the twisted strip model brings the highest efficiency rate than other modes. Accordingly, the heat transfer rate and the outlet temperature for the twisted strip with the highest height increase by 14.33% and 0.39%, respectively compared to the lower heights. Besides, the use of composite nanofluid with a 5% concentration in a twisted strip with a height of 40 mm provides the highest heat transfer rate. Also, the outlet temperature difference with the fluid inlet increases by 4.93% compared to lower concentrations.http://www.sciencedirect.com/science/article/pii/S2214157X22000065Parabolic trough solar collector (PTSC)Hybrid nanofluidsTwisted stripsHeat transfer |
| spellingShingle | Fatemeh Harsij Sani Mohsen Pourfallah Mosayeb Gholinia The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube Case Studies in Thermal Engineering Parabolic trough solar collector (PTSC) Hybrid nanofluids Twisted strips Heat transfer |
| title | The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube |
| title_full | The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube |
| title_fullStr | The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube |
| title_full_unstemmed | The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube |
| title_short | The effect of MoS2–Ag/ H2O hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube |
| title_sort | effect of mos2 ag h2o hybrid nanofluid on improving the performance of a solar collector by placing wavy strips in the absorber tube |
| topic | Parabolic trough solar collector (PTSC) Hybrid nanofluids Twisted strips Heat transfer |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22000065 |
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