Steady, Forced Convection Boiling in Micro Ducts

  • Yitshak Zohar
Part of the The Kluwer International Series in Microsystems book series (MICT, volume 11)


Convective boiling is defined as the addition of heat to a flowing liquid in such a way that generation of vapour occurs while, conversely, convective condensation is defined as the removal of heat from the fluid in such a way that vapour is converted into liquid. This definition, therefore, excludes the process of flashing where vapour generation occurs solely as the result of a reduction in flow pressure. However, in many systems, the two processes do occur simultaneously and, hence, cannot be clearly distinguished. This chapter will be concerned with only single-component microsystems, i.e. a pure liquid and its vapour. Furthermore, much of the information presented will be devoted to one such system, namely the water/steam system. Many other fluid systems of industrial importance, however, involve the use of multi-component systems such as refrigerants, organic liquids, cryogenic liquids and liquid metals. Very limited information is available on the processes of boiling and condensation with multi-component macrosystems and practically none with multi-component microsystems.


Liquid Film Vapour Bubble Critical Heat Flux Bubble Growth Annular Flow 
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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Yitshak Zohar
    • 1
  1. 1.The Hong Kong University of Science and TechnologyChina

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