Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines
This study experimentally investigates the thermal performance of a loop thermosyphon (LTS) featuring dual vapor lines and one liquid line. Three filling ratios (FR), such as 20 %, 30 %, and 40 % of the total LTS volume, are tested with deionized (DI) water as the working fluid under vertical orient...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X2500334X |
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| author | Vivek Vengatoor Mana Lazarus Godson Asirvatham Stephen Manova Anitha Angeline Appadurai J. Pradeep Kumar Witsawat Leunanonchai Somchai Wongwises |
| author_facet | Vivek Vengatoor Mana Lazarus Godson Asirvatham Stephen Manova Anitha Angeline Appadurai J. Pradeep Kumar Witsawat Leunanonchai Somchai Wongwises |
| author_sort | Vivek Vengatoor Mana |
| collection | DOAJ |
| description | This study experimentally investigates the thermal performance of a loop thermosyphon (LTS) featuring dual vapor lines and one liquid line. Three filling ratios (FR), such as 20 %, 30 %, and 40 % of the total LTS volume, are tested with deionized (DI) water as the working fluid under vertical orientation. Results reveal that the optimal thermal performance occurs at a 30 % FR, with the lowest thermal resistance of 0.089 °C/W recorded at 360W. At the maximum power input, the evaporator wall temperature reaches 85.5 °C for the optimal filling ratio (OFR). Incorporating dual vapor lines enhances the vapor movement from the evaporator to the condenser, thereby reducing heat accumulation at the compensation chamber. Consequently, the LTS achieves a maximum thermal efficiency of 85.44 % at 30 % FR. Dual vapor lines facilitate faster vapor flow to the condenser section, resulting in quicker condensation and an increased liquid descending rate to the evaporator. Henceforth, the experimental findings and discussions of the proposed LTS are expected to be a valuable guide for the upcoming engineering designs in developing LTS that are intended for cooling data centers. |
| format | Article |
| id | doaj-art-ae5fc7007c5947b18cfec495fcfb6ede |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-ae5fc7007c5947b18cfec495fcfb6ede2025-08-20T02:13:07ZengElsevierCase Studies in Thermal Engineering2214-157X2025-06-017010607410.1016/j.csite.2025.106074Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor linesVivek Vengatoor Mana0Lazarus Godson Asirvatham1Stephen Manova2Anitha Angeline Appadurai3J. Pradeep Kumar4Witsawat Leunanonchai5Somchai Wongwises6Department of Mechanical Engineering, Karunya Institute of Technology & Sciences, Coimbatore, 641114, Tamil Nadu, India; Department of Mechanical Engineering, NSS College of Engineering, Palakkad, 6780008, Kerala, IndiaDepartment of Mechanical Engineering, Karunya Institute of Technology & Sciences, Coimbatore, 641114, Tamil Nadu, India; Corresponding author.Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab (FUTURE), Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok, 10140, ThailandDepartment of Robotics and Automation, Karunya Institute of Technology & Sciences, Coimbatore, 641114, Tamil Nadu, IndiaDepartment of Mechanical Engineering, Kings Engineering College, Chennai, 602117, IndiaFluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab (FUTURE), Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok, 10140, ThailandFluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab (FUTURE), Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok, 10140, ThailandThis study experimentally investigates the thermal performance of a loop thermosyphon (LTS) featuring dual vapor lines and one liquid line. Three filling ratios (FR), such as 20 %, 30 %, and 40 % of the total LTS volume, are tested with deionized (DI) water as the working fluid under vertical orientation. Results reveal that the optimal thermal performance occurs at a 30 % FR, with the lowest thermal resistance of 0.089 °C/W recorded at 360W. At the maximum power input, the evaporator wall temperature reaches 85.5 °C for the optimal filling ratio (OFR). Incorporating dual vapor lines enhances the vapor movement from the evaporator to the condenser, thereby reducing heat accumulation at the compensation chamber. Consequently, the LTS achieves a maximum thermal efficiency of 85.44 % at 30 % FR. Dual vapor lines facilitate faster vapor flow to the condenser section, resulting in quicker condensation and an increased liquid descending rate to the evaporator. Henceforth, the experimental findings and discussions of the proposed LTS are expected to be a valuable guide for the upcoming engineering designs in developing LTS that are intended for cooling data centers.http://www.sciencedirect.com/science/article/pii/S2214157X2500334XLoop thermosyphonDual vapor lineHeat transport limitElectronics cooling |
| spellingShingle | Vivek Vengatoor Mana Lazarus Godson Asirvatham Stephen Manova Anitha Angeline Appadurai J. Pradeep Kumar Witsawat Leunanonchai Somchai Wongwises Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines Case Studies in Thermal Engineering Loop thermosyphon Dual vapor line Heat transport limit Electronics cooling |
| title | Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines |
| title_full | Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines |
| title_fullStr | Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines |
| title_full_unstemmed | Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines |
| title_short | Experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines |
| title_sort | experimental investigation on the heat transfer performance of a loop thermosyphon with dual vapor lines |
| topic | Loop thermosyphon Dual vapor line Heat transport limit Electronics cooling |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X2500334X |
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