A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency
Utilizing renewable energy in buildings is promising for alleviating the energy crisis and environmental pollution problems. Pulsating heat pipes (PHPs) are considered as a good alternative to achieve it due to their simple structure and efficient heat transfer performance. However, recently develop...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-09-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23005920 |
| _version_ | 1797729916929703936 |
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| author | Tingsen Chen Shuli Liu Yongliang Shen Binxu Gao Abdur Rehman Mazhar |
| author_facet | Tingsen Chen Shuli Liu Yongliang Shen Binxu Gao Abdur Rehman Mazhar |
| author_sort | Tingsen Chen |
| collection | DOAJ |
| description | Utilizing renewable energy in buildings is promising for alleviating the energy crisis and environmental pollution problems. Pulsating heat pipes (PHPs) are considered as a good alternative to achieve it due to their simple structure and efficient heat transfer performance. However, recently developed PHPs having a non-vertical orientation require a certain number of turns to initiate operation, which greatly limits its application. To solve this starting-up issue in a single-loop PHP, this study proposes a novel triangular pulsating heat pipe (TPHP). A validated volume of fluid (VOF) model is developed to investigate three important factors on the heat transfer performance including the model structure of the TPHP, the heating temperature and the liquid filling ratio. The results show that the TPHP can achieve heating start-up in non-vertical direction and the heat flow resistance can be reduced by up to 38.04% through a rationalized model structure. The filling ratio influences the heat flow resistance by affecting the flow pattern within the TPHP while the optimum liquid filling ratio is about 50%. This study is critical to broaden the application of single-loop PHP in buildings. |
| first_indexed | 2024-03-12T11:36:31Z |
| format | Article |
| id | doaj.art-819daab581d24cc48de003e780e9a93c |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-12T11:36:31Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-819daab581d24cc48de003e780e9a93c2023-09-01T05:01:43ZengElsevierCase Studies in Thermal Engineering2214-157X2023-09-0149103286A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiencyTingsen Chen0Shuli Liu1Yongliang Shen2Binxu Gao3Abdur Rehman Mazhar4School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China; Corresponding author.School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, ChinaCollege of Electrical & Mechanical Engineering, National University of Sciences & Technology, PakistanUtilizing renewable energy in buildings is promising for alleviating the energy crisis and environmental pollution problems. Pulsating heat pipes (PHPs) are considered as a good alternative to achieve it due to their simple structure and efficient heat transfer performance. However, recently developed PHPs having a non-vertical orientation require a certain number of turns to initiate operation, which greatly limits its application. To solve this starting-up issue in a single-loop PHP, this study proposes a novel triangular pulsating heat pipe (TPHP). A validated volume of fluid (VOF) model is developed to investigate three important factors on the heat transfer performance including the model structure of the TPHP, the heating temperature and the liquid filling ratio. The results show that the TPHP can achieve heating start-up in non-vertical direction and the heat flow resistance can be reduced by up to 38.04% through a rationalized model structure. The filling ratio influences the heat flow resistance by affecting the flow pattern within the TPHP while the optimum liquid filling ratio is about 50%. This study is critical to broaden the application of single-loop PHP in buildings.http://www.sciencedirect.com/science/article/pii/S2214157X23005920Rnewable energyPulsating heat pipe (PHP)Capillary forceFilling ratioVOFHeat transfer performance |
| spellingShingle | Tingsen Chen Shuli Liu Yongliang Shen Binxu Gao Abdur Rehman Mazhar A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency Case Studies in Thermal Engineering Rnewable energy Pulsating heat pipe (PHP) Capillary force Filling ratio VOF Heat transfer performance |
| title | A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency |
| title_full | A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency |
| title_fullStr | A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency |
| title_full_unstemmed | A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency |
| title_short | A novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency |
| title_sort | novel triangular pulsating heat pipe with enhanced heat transfer performance for building energy efficiency |
| topic | Rnewable energy Pulsating heat pipe (PHP) Capillary force Filling ratio VOF Heat transfer performance |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23005920 |
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