This research represents an experimental investigation on the operating limitation of an oscillating heat pipe (OHP). The OHP has six turns and three sections: evaporator, condenser and adiabatic sections with lengths of 40 mm, 64 mm and 51 mm, respectively. Water or a mixture of water and alumina (Al2O3) making up a nanofluid served as the working fluid. Filling ratios ranging from 30% to 70%, and tilt angles (orientation) ranging from 0° to 90° were studied. The experimental results showed (1) the water/Al2O3 nanofluid can enhance the OHP heat transfer performance, i.e., the highest input power (operating limitation) increased when the OHP was charged with water/Al2O3 nanofluid; (2) the operating limitation increased as the filling ratio increased from 30% to 70%, but the optimum filling ratio of the OHP is 30% or 50% when the working power is lower or higher; and (3) the thermal resistance of the OHP decreased as the tilt angle increased, and the operating limitation increased as the tilt angle increased.
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ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology
July 14–19, 2013
Minneapolis, Minnesota, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-5548-5
PROCEEDINGS PAPER
Experimental Investigation on Operating Limitation of an Oscillating Heat Pipe Available to Purchase
Yulong Ji,
Yulong Ji
Dalian Maritime University, Dalian, Liaoning, China
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Chao Chang,
Chao Chang
Dalian Maritime University, Dalian, Liaoning, China
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Gen Li,
Gen Li
Dalian Maritime University, Dalian, Liaoning, China
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Hongbin Ma,
Hongbin Ma
University of Missouri, Columbia, MO
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Yuqing Sun
Yuqing Sun
Dalian Maritime University, Dalian, Liaoning, China
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Yulong Ji
Dalian Maritime University, Dalian, Liaoning, China
Chao Chang
Dalian Maritime University, Dalian, Liaoning, China
Gen Li
Dalian Maritime University, Dalian, Liaoning, China
Hongbin Ma
University of Missouri, Columbia, MO
Yuqing Sun
Dalian Maritime University, Dalian, Liaoning, China
Paper No:
HT2013-17088, V002T07A026; 6 pages
Published Online:
December 21, 2013
Citation
Ji, Y, Chang, C, Li, G, Ma, H, & Sun, Y. "Experimental Investigation on Operating Limitation of an Oscillating Heat Pipe." Proceedings of the ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. Volume 2: Heat Transfer Enhancement for Practical Applications; Heat and Mass Transfer in Fire and Combustion; Heat Transfer in Multiphase Systems; Heat and Mass Transfer in Biotechnology. Minneapolis, Minnesota, USA. July 14–19, 2013. V002T07A026. ASME. https://doi.org/10.1115/HT2013-17088
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