A pulsating heat pipe (PHP) is a passive device with a good heat transport capability compared to other heat pipes. This paper describes an experimental investigation of a PHP with a serpentine channel fabricated by using a 3-D printer. The configuration of the flow channels in the PHP was close to that of commercially available PHPs made entirely of aluminum. To improve the heat transport capability and enable flow visualization, an aluminum plate was used on one side as the heat-transfer surface, on which transparent flow channels were fabricated by a 3-D printer and a polycarbonate filament. The interface between the aluminum plate and polycarbonate flow channel was cemented with a heat-resistant glue to ensure long term sealing. HFE-7000 was used as a working fluid. Oscillating two-phase flow in the PHP was observed with a high-speed digital video camera and transient surface temperatures at evaporator, insulator and condenser sections were measured by fine diameter thermocouples. The two-phase flow and thermal characteristics of the PHP at different heater power levels are presented.
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ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels
June 10–13, 2018
Dubrovnik, Croatia
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5119-7
PROCEEDINGS PAPER
Visualization of Two-Phase Flow in 3D Printed Polycarbonate Pulsating Heat Pipe With Aluminum Substrate
Takahiro Arai,
Takahiro Arai
Central Research Institute of Electric Power Industry, Kanagawa, Japan
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Masahiro Kawaji,
Masahiro Kawaji
City College of New York, New York, NY
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Yasushi Koito
Yasushi Koito
Kumamoto University, Kumamoto, Japan
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Takahiro Arai
Central Research Institute of Electric Power Industry, Kanagawa, Japan
Masahiro Kawaji
City College of New York, New York, NY
Yasushi Koito
Kumamoto University, Kumamoto, Japan
Paper No:
ICNMM2018-7677, V001T02A010; 6 pages
Published Online:
August 23, 2018
Citation
Arai, T, Kawaji, M, & Koito, Y. "Visualization of Two-Phase Flow in 3D Printed Polycarbonate Pulsating Heat Pipe With Aluminum Substrate." Proceedings of the ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels. Dubrovnik, Croatia. June 10–13, 2018. V001T02A010. ASME. https://doi.org/10.1115/ICNMM2018-7677
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