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    국내학술지 제목 게시판 내용
    제목(국문) An improved correlation to predict the heat transfer in pulsating heat pipes over increased range of fluid-filling ratios and operating inclinations
    제목(영문)
    저자 - (Foster Kwame Kholi ,School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan, 46241, Korea ) ▷공저자네트워크등록하기
    - (Alberto Mucci ,School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan, 46241, Korea ) ▷공저자네트워크등록하기
    - (Hariharan Kallath ,School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan, 46241, Korea ) ▷공저자네트워크등록하기
    (Man Yeong Ha ,Department of mechanical engineering, Pusan National University (myha@pusan.ac.kr) ) ▷공저자네트워크등록하기
    - (Jason Chetwynd-Chatwin ,Rolls-Royce plc, Whittle House, WH-42-P. O. Box 3, Filton, BS34 Bristol, 7QE, Bristol, UK ) ▷공저자네트워크등록하기
    - (June Kee Min ,Schoolof Mechanical Engineering, Pusan National University ) ▷공저자네트워크등록하기
    초록

    Abstract is not available for this article.

    초록(영문)

    Previous correlations that have been used to predict the heat transfer performance of pulsating heat pipes (PHPs) offer limited thermal predictions within a narrow range of fluid-filling ratios and PHP inclinations. In this paper, a novel semi-empirical correlation with improved scope is proposed, with an increased range of fluid-filling ratios and PHP inclinations. The proposed correlation employs the dimensionless numbers governing the thermo-hydrodynamic operation of PHPs, and achieved ±30 % accuracy when predicting selected experimental data, showing reasonably good agreement. Unlike previous correlations, the new correlation can be used for different working fluids, geometrical aspect ratios, and heat loads. A comprehensive assessment of the relative significance of the correlation parameters on the total heat transfer performance is discussed. The new correlation with its flexible application range is expected to assist in faster and more enhanced thermal predictions as interest in PHPs grows.

    keyword Critical number of turns
    Fluid-filling ratio
    Heat transfer correlation
    Inclination angles
    Kutateladze number
    Pulsating heat pipes
    저널명 Journal of Mechanical Science and Technology ▷관련저널보기
    VOL 34
    PAGE 2637
    발표년도 2020
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