Thermal evaluation of flow channels with perforated-baffles
The influences of perforated-baffles on the local Nusselt number (Nu) and thermo-hydraulic behaviors were comprehensively studied using thermochromic liquid crystal sheet. The perforated-baffles were designed in two forms: perforated-baffle (PB) and perforated-baffle with square wings (SW-PBs). Tran...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723000744 |
| _version_ | 1797809823486574592 |
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| author | Smith Eiamsa-ard Arnut Phila Khwanchit Wongcharee Monsak Pimsarn Naoki Maruyama Masafumi Hirota |
| author_facet | Smith Eiamsa-ard Arnut Phila Khwanchit Wongcharee Monsak Pimsarn Naoki Maruyama Masafumi Hirota |
| author_sort | Smith Eiamsa-ard |
| collection | DOAJ |
| description | The influences of perforated-baffles on the local Nusselt number (Nu) and thermo-hydraulic behaviors were comprehensively studied using thermochromic liquid crystal sheet. The perforated-baffles were designed in two forms: perforated-baffle (PB) and perforated-baffle with square wings (SW-PBs). Transverse solid baffles (TBs) were also tested for an assessment. All baffles had an identical height of 12 mm (e/H = 0.3). Experimental results showed that SW-PBs offered better Nu than PBs. It is also seen that PBs and SW-PBs caused lower pressure loss than TBs by around 20.49% and 13.98%, respectively. The reduction of friction loss was primarily due to the baffle perforation. In addition, the PBs yielded the thermal performance factors (TPF) up to 1.01 at the lowest Reynolds number of 6000. |
| first_indexed | 2024-03-13T06:58:36Z |
| format | Article |
| id | doaj.art-0b7f63a9b7f54b16b9c986bb572d1e99 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-13T06:58:36Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-0b7f63a9b7f54b16b9c986bb572d1e992023-06-07T04:48:49ZengElsevierEnergy Reports2352-48472023-05-019525532Thermal evaluation of flow channels with perforated-bafflesSmith Eiamsa-ard0Arnut Phila1Khwanchit Wongcharee2Monsak Pimsarn3Naoki Maruyama4Masafumi Hirota5Division of System Engineering, Graduate School of Engineering, Mie University, Tsu, Mie, 514-8507, Japan; Department of Mechanical Engineering, Mahanakorn University of Technology, Bangkok, 10530, Thailand; Corresponding author at: Department of Mechanical Engineering, Mahanakorn University of Technology, Bangkok, 10530, Thailand.Department of Mechanical Engineering, Mahanakorn University of Technology, Bangkok, 10530, ThailandDepartment of Mechanical Engineering, Mahanakorn University of Technology, Bangkok, 10530, ThailandSchool of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, ThailandDivision of Mechanical Engineering, Graduate School of Engineering, Mie University, Tsu, Mie, 514-8507, Japan; Engineering Innovation Unit, Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie, 514-8507, JapanDivision of Mechanical Engineering, Graduate School of Engineering, Mie University, Tsu, Mie, 514-8507, JapanThe influences of perforated-baffles on the local Nusselt number (Nu) and thermo-hydraulic behaviors were comprehensively studied using thermochromic liquid crystal sheet. The perforated-baffles were designed in two forms: perforated-baffle (PB) and perforated-baffle with square wings (SW-PBs). Transverse solid baffles (TBs) were also tested for an assessment. All baffles had an identical height of 12 mm (e/H = 0.3). Experimental results showed that SW-PBs offered better Nu than PBs. It is also seen that PBs and SW-PBs caused lower pressure loss than TBs by around 20.49% and 13.98%, respectively. The reduction of friction loss was primarily due to the baffle perforation. In addition, the PBs yielded the thermal performance factors (TPF) up to 1.01 at the lowest Reynolds number of 6000.http://www.sciencedirect.com/science/article/pii/S2352484723000744ChannelHeat transferImpinging jetPerforated-baffleRecirculationThermal evaluation |
| spellingShingle | Smith Eiamsa-ard Arnut Phila Khwanchit Wongcharee Monsak Pimsarn Naoki Maruyama Masafumi Hirota Thermal evaluation of flow channels with perforated-baffles Energy Reports Channel Heat transfer Impinging jet Perforated-baffle Recirculation Thermal evaluation |
| title | Thermal evaluation of flow channels with perforated-baffles |
| title_full | Thermal evaluation of flow channels with perforated-baffles |
| title_fullStr | Thermal evaluation of flow channels with perforated-baffles |
| title_full_unstemmed | Thermal evaluation of flow channels with perforated-baffles |
| title_short | Thermal evaluation of flow channels with perforated-baffles |
| title_sort | thermal evaluation of flow channels with perforated baffles |
| topic | Channel Heat transfer Impinging jet Perforated-baffle Recirculation Thermal evaluation |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723000744 |
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