The ultrasonic effect on the heat transfer performance in oscillating heat pipes (OHPs) was investigated experimentally. Ultrasonic sound was applied to the evaporating section of the OHP by using electrically controlled piezoelectric ceramics. The heat pipes were tested with or without the ultrasonic effect. The effects of heat input, filling ratio, orientation, operating temperature, and working fluids (water and acetone) were investigated. The experimental results showed that ultrasonic sound can affect the oscillating motions and enhance the heat transfer performance of an OHP. However, the heat transfer enhancement mainly occurs at low heat input. In addition, it was found that heat transfer enhancement of the ultrasonic effect depends on the working fluid and operating temperature. At an operating temperature of 20 °C, the enhancement percentage of the water OHP is higher than acetone OHP. However, when the operating temperature was increased to 40 °C, the enhancement percentage of the water OHP was lower than the acetone OHP.
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September 2015
This article was originally published in
Journal of Heat Transfer
Research-Article
Ultrasonic Effect on Heat Transfer Performance of Oscillating Heat Pipes
Nannan Zhao,
Nannan Zhao
Institute of Marine Engineering
and Thermal Science,
Marine Engineering College,
and Thermal Science,
Marine Engineering College,
Dalian Maritime University
,Dalian 116026
, China
Search for other works by this author on:
Benwei Fu,
Benwei Fu
Institute of Marine Engineering
and Thermal Science,
Marine Engineering College,
and Thermal Science,
Marine Engineering College,
Dalian Maritime University
,Dalian 116026
, China
Search for other works by this author on:
Hongbin Ma,
Hongbin Ma
1
LaPierre Professor
Fellow ASME
Department of Mechanical
and Aerospace Engineering,
e-mail: mah@missouri.edu
Fellow ASME
Department of Mechanical
and Aerospace Engineering,
University of Missouri
,Columbia, MO 65211
e-mail: mah@missouri.edu
1Corresponding author.
Search for other works by this author on:
Fengmin Su
Fengmin Su
Institute of Marine Engineering
and Thermal Science,
Marine Engineering College,
and Thermal Science,
Marine Engineering College,
Dalian Maritime University
,Dalian 116026
, China
Search for other works by this author on:
Nannan Zhao
Institute of Marine Engineering
and Thermal Science,
Marine Engineering College,
and Thermal Science,
Marine Engineering College,
Dalian Maritime University
,Dalian 116026
, China
Benwei Fu
Institute of Marine Engineering
and Thermal Science,
Marine Engineering College,
and Thermal Science,
Marine Engineering College,
Dalian Maritime University
,Dalian 116026
, China
Hongbin Ma
LaPierre Professor
Fellow ASME
Department of Mechanical
and Aerospace Engineering,
e-mail: mah@missouri.edu
Fellow ASME
Department of Mechanical
and Aerospace Engineering,
University of Missouri
,Columbia, MO 65211
e-mail: mah@missouri.edu
Fengmin Su
Institute of Marine Engineering
and Thermal Science,
Marine Engineering College,
and Thermal Science,
Marine Engineering College,
Dalian Maritime University
,Dalian 116026
, China
1Corresponding author.
Manuscript received April 27, 2014; final manuscript received August 9, 2014; published online May 14, 2015. Assoc. Editor: Yogesh Jaluria.
J. Heat Transfer. Sep 2015, 137(9): 091014 (6 pages)
Published Online: September 1, 2015
Article history
Received:
April 27, 2014
Revision Received:
August 9, 2014
Online:
May 14, 2015
Citation
Zhao, N., Fu, B., Ma, H., and Su, F. (September 1, 2015). "Ultrasonic Effect on Heat Transfer Performance of Oscillating Heat Pipes." ASME. J. Heat Transfer. September 2015; 137(9): 091014. https://doi.org/10.1115/1.4030227
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