Fundamental Studies in Cryogenic Cooling of Power Electronics.
作者： L. C. Chow , W. F. Lu , O. J. Hahn , M. S. Sehmbey , C. J. Chui
DOI:
关键词: Mechanics 、 Heat flux 、 Critical heat flux 、 Thermodynamics 、 Heat sink 、 Heat transfer 、 Heat transfer coefficient 、 Nucleate boiling 、 Fin (extended surface) 、 Convective heat transfer 、 Materials science
摘要: Abstract : This study details the results from experiments conducted to heat transfer characteristics during liquid nitrogen spray cooling and pool boiling a heater array. Four different nozzles at various pressures were used variation in temperature. Effect of nozzle flow rate on critical flux coefficient are presented. also provides empirical correlations for characteristics. The have been correlated using non-dimensional numbers. shows importance surface roughness with nitrogen. rougher surfaces shown significantly higher rates similar fluxes occurring lower temperatures. vertical array flush mounted sources heaters found enhance upper due bubble pumped convection.
harvard.edu参考文章(25)
Frank M. White, Viscous Fluid Flow ,(1974)
Otward Mueller, Cryogenic power conversion: Combining HT superconductors and semiconductors Superconductivity and its applications. ,vol. 251, pp. 746- 760 ,(2008) , 10.1063/1.42057
M. S. Sehmbey, M. R. Pais, L. C. Chow, Effect of surface material properties and surface characteristics in evaporative spray cooling Journal of Thermophysics and Heat Transfer. ,vol. 6, pp. 505- 512 ,(1990) , 10.2514/3.389
Bogdan Siwoń, Experimental investigations of the liquid film by a gas-liquid spray jet impinging onto a flat surface International Communications in Heat and Mass Transfer. ,vol. 20, pp. 665- 674 ,(1993) , 10.1016/0735-1933(93)90078-A
Charlotte J. Chui, Maninder S. Sehmbey, Louis C. Chow, Ottfried J. Hahn, Pool boiling heat transfer from vertical heater array in liquid nitrogen Journal of Thermophysics and Heat Transfer. ,vol. 9, pp. 308- 313 ,(1994) , 10.2514/3.661
K.-A. Park, A. E. Bergles, Natural convection heat transfer characteristics of simulated microelectronic chips Journal of Heat Transfer-transactions of The Asme. ,vol. 109, pp. 90- 96 ,(1987) , 10.1115/1.3248074
M. Monde, H. Kusuda, H. Uehara, Critical Heat Flux During Natural Convective Boiling in Vertical Rectangular Channels Submerged in Saturated Liquid Journal of Heat Transfer. ,vol. 104, pp. 300- 303 ,(1982) , 10.1115/1.3245087
Guo Zeng-Yuan, Bu Wei-Hong, Thermal drag in forced duct flows International Journal of Heat and Mass Transfer. ,vol. 34, pp. 229- 235 ,(1991) , 10.1016/0017-9310(91)90189-L
Y. Haramura, Y. Katto, A new hydrodynamic model of critical heat flux, applicable widely to both pool and forced convection boiling on submerged bodies in saturated liquids International Journal of Heat and Mass Transfer. ,vol. 26, pp. 389- 399 ,(1983) , 10.1016/0017-9310(83)90043-1
Y. Fujita, H. Ohta, S. Uchida, K. Nishikawa, Nucleate boiling heat transfer and critical heat flux in narrow space between rectangular surfaces International Journal of Heat and Mass Transfer. ,vol. 31, pp. 229- 239 ,(1988) , 10.1016/0017-9310(88)90004-X