DOI QR코드

DOI QR Code

비등을 수반하는 발열면에 충돌하는 수분류의 임계열유속에 관한 연구

Critical Heat Flux of an Impinging Water Jet on a Heated Surface with Boiling

  • 발행 : 2000.04.01

초록

The purpose of this paper is to investigate a critical heat flux(CHF) during forced convective subcooled and saturated boiling in free water jet system impinged on a rectangular heated surface. The surface is supplied with subcooled or saturated water through a rectangular jet. Experimental parameters studied are a width of heated surface, a height of supplementary water and a degree of subcooling. Incipient boiling point is observed in the temperature of 6${\~}8^{\circ}C$ of superheat of test specimen. CHF depends on jet velocity for various boiling-involved coolant system. CHF also is proportional to the nozzle exit velocity to the power of n, where n is 0.55 and 0.8 for subcooled and saturated boiling, respectively. CHF is enhanced with a higher jet velocity, higher degree of subcooling and smaller width of a heated surface.

키워드

참고문헌

  1. Mudawar, I. and Wadsworth, D.C., 1991, 'Critical Heat Flux from a Simulated Chip to a Confined Rectangular Impinging Jet of Dielectric Liquid,' Int.J.Heat Mass Transfer, Vol. 34, No.6, pp. 1465 -1479 https://doi.org/10.1016/0017-9310(91)90289-Q
  2. 이종수, 엄기찬, 최국광, 1996, '장방형 충돌수분류 냉각계의 국소열전달에 관한 연구,' 대한기계학회 논문집(B), 제 20권, 제4호, pp. 1395-1405
  3. 相原利雄, 鈴木和彌, 金柱均, 笠原敬介, 1991, '細經クライオプロ-ブにおける液體窒素の微細噴流沸騰熱傳達' 日本機械學曾論文集(B編), 57卷, 538號, pp. 186-191
  4. 古谷正裕, 井上 昱, 丹野隆治, 1995, '二次元衝 突噴流による凹面および平面の冷却特性と限界熱 流束'日本機械學曾論文集(B編), 61卷, 591號, pp. 4094-4100
  5. Wolf, D.H., Incropera, F.P. and Viskanata, R., 1996, 'Local Jet Impingingment Boiling Heat Transfer,' Int. J Heat and Mass Transfer, Vol. 39, No.7, pp. 1395-1406 https://doi.org/10.1016/0017-9310(95)00216-2
  6. Sharan.A. and Lienhard,J.H., 1985, 'On Predicting Burnout in the Jet Disk Configuration,' Transactions of the ASME Journal of Heat Transfer, Vol. 107, pp. 398-401
  7. 甲藤好朗, 門山政則, 1975, '衝突噴流沸騰系の パ-ンアウト機構の硏究,'日本機械學曾論文集 (第2部), 41卷, 341號, pp. 306-314
  8. 門出政則, 甲藤好郞, 1997, '衝突噴流沸騰系の パ-ンアウトの硏究(第1報, 氣液の擧動の特性),' 日本機械學曾論文集(第2部), 43卷, 373號, pp. 3399-3407
  9. Vliet, G.C. and Leppert, G., 1964, 'Critical Heat Flux for Nearly Saturated Water Flowing Normal to a Cylinder,' Transactions of the ASME Journal of Heat Transfer, pp. 59-67
  10. Holman, J.P., 1989, Experimental Methods for Engineers, 4th Ed., McGraw Hill, New York, pp. 41-49
  11. Akhanda, M.A.R. and James, D.D., 1991, 'An Experimental Study of the Relative Effects of Transverse and Longitudinal Ribbing of the Heat Transfer Surface in Forced Convective Boiling,' Transactions of the ASME Journal of Heat Transfer, Vol. 113, pp. 209-215
  12. 鳥飼欣一, 鈴木康一, 竹內光生, 1989, 'ぬれ難い面の沸騰傳熱に關する硏究', 日本機械學會論文集(B編), 55卷, 511號, pp. 770-775
  13. Ruch, M.A. and Holman, J.P. 1975, 'Boiling Heat Transfer to a Freon-113 Jet Impinging Upward onto a Flat, Heated Surface,' Int. J. Heat Mass Transfer, Vol. 18, pp. 51-60 https://doi.org/10.1016/0017-9310(75)90007-1
  14. Katto, Y. and Ishii, K., 1978, 'Burnout in a High Heat Flux Boiling System with a Forced Supply of Liquid Through a Plane Jet,' Proc. 6th Int. Heat Transfer Conf., Vol. 1, pp. 435-440
  15. 門出政則, 1979, '衝突噴流沸騰系のべ一ンアゥトの硏究(第3報, ぺ一ンアゥト熱流束の無次元整埋式の擴張', 日本機械學會論文集(B編), 46卷 406號, pp. 1146-1155
  16. 甲藤好郞, 石井和德, 1978, '平面噴流による 强制液組供給, 高熱流束沸騰系のパ-ンアウト,' 日本機械學會論文集(B編), 44?, 384號, pp. 2817-2823
  17. Grimley, T.A., Mudawar, I. and lncropera, F.P., 1988, 'CHF Enhancement in Flowing Flourocarbon Liquid Films Using Structured Surfaces and Flow Deflectors,' Int.J. Heat Mass Transfer, Vol. 31, pp. 55-65 https://doi.org/10.1016/0017-9310(88)90222-0
  18. McGillis, W.R., Carey, V.P. and Strom, D.B., 1991, 'Geometry Effects on Critical Heat Flux for Subcooled Convective Boiling from an Array of Heated Elements,' Transactions of the ASME Journal of Heat Transfer, Vol. 113, pp. 463 -471