Experimental investigation of nanofluids on sintered heat pipe thermal performance |
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| Authors: | Shung-Wen Kang Wei-Chiang Wei Sheng-Hong Tsai Chia-Ching Huang |
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| Affiliation: | 1. Department of Mechanical and Electro-Mechanical Engineering, Tamkang University, 151 Ying-Chuan Road, Tamsui, 25137 Taipei, Taiwan;2. Department of Mechanical Engineering, St. John’s University, 499, Section 4, Tam-King Road, Tamsui, 25137 Taipei, Taiwan;1. Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Engineering, Sun Yat-sen University, Guangzhou 510006, PR China;2. School of Foreign Studies, Yiwu Industrial and Commercial College, Yiwu 322000, PR China;3. Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, South China University of Technology, Guangzhou 510640, PR China;1. Department of Energy Technology, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden;2. Department of Materials and Nano Physics, KTH Royal Institute of Technology, SE-16440, Kista, Stockholm, Sweden;1. Department of Refrigeration and Air Conditioning Technology, Faculty of Industrial Education, Helwan University, Egypt;2. Department of Mechanics, Ameeria Integrated Technology Cluster, Cairo, Egypt;3. Department of Mechanical Power Engineering, Faculty of Engineering at Mattaria, Helwan University, Egypt;1. Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA, 92697, USA;2. Key Laboratory of Surface Functional Structure Manufacturing of GuangDong Higher Education Institute, South China University of Technology, GuangZhou, 510640, China;3. Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, 92093, USA |
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| Abstract: | Dilute dispersion of silver nano-particles in pure water was employed as the working fluid for conventional 1 mm wick-thickness sintered circular heat pipe. The nanofluid used in present study is an aqueous solution of 10 and 35 nm diameter silver nano-particles.The experiment was performed to measure the temperature distribution and compare the heat pipe temperature difference using nanofluid and DI-water. The tested nano-particle concentrations ranged from 1, 10 and 100 mg/l. The condenser section of the heat pipe was attached to a heat sink that was cooled by water supplied from a constant temperature bath maintained at 40 °C.At a same charge volume, the measured nanofluids filled heat pipe temperature distribution demonstrated that the temperature difference decreased 0.56–0.65 °C compared to DI-water at an input power of 30–50 W. In addition, the nanofluid as working medium in heat pipe can up to 70 W and is higher than pure water about 20 W. |
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