An experimental study of the film produced by the spray impact on a heated target and of the spray cooling has been performed in normal gravity and in microgravity conditions during parabolic flights. A convex shape of the target allowed visualization of the film evolution and determination of the film characteristics using the image processing. The effects of the spray parameters and of the gravity level on heat transfer have been investigated. It has been found that the spray cooling efficiency depends on the water flow rate in a nonmonotonous way. A range of spray parameters at which the effect of gravity level on heat transfer is significant has been determined. It has been found that the spray cooling is less effective in microgravity conditions in comparison with normal gravity and hypergravity.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Gravity effect on spray impact and spray cooling


    Additional title:

    Gravitationseinfluss auf den Sprühimpuls und die Sprühkühlung


    Contributors:


    Publication date :

    2007


    Size :

    4 Seiten, 6 Bilder, 8 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Spray cooling characteristics under reduced gravity

    Kato, Masaya / Abe, Yoshiyuki / Mori, Yasuhiko et al. | AIAA | 1995


    Spray Cooling in Terrestrial and Simulated Reduced Gravity

    Hunnell, Charles Andy / Kuhlman, John M. / Gray, Donald D. | American Institute of Physics | 2006


    Spray Cooling in Terrestrial and Simulated Reduced Gravity

    Hunnell, C. A. / Kuhlman, J. M. / Gray, D. D. et al. | British Library Conference Proceedings | 2006


    Effect of spray characteristics on spray cooling with liquid nitrogen

    Sehmbey, Maninder / Chow, Louis / Hahn, Ottfried et al. | AIAA | 1994


    Effect of spray characteristics on spray cooling with liquid nitrogen

    Sehmbey, Maninder S. / Chow, Louis C. / Hahn, Ottfried J. et al. | AIAA | 1995