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Non-adiabatic Effects in Pressure Drop Calculations in Flow Boiling and Flow Condensation in Minichannels
Abstract
Considerations presented in the paper relate both to the case of flow boiling and flow condensation in conventional channels as well as small diameter ones. Authors devoted all the possible attention that the modeling presented is applicable to the whole range of quality variation in both cases of condensation and boiling. The form of two-phase flow multiplier, which is a major factor in modeling presented here, should be capable of capturing features of annular flow and bubbly flow inclusive of non-adiabatic effects, which modify the interface shear stress. Modelling seems to be a little less complex in the case of flow boiling/condensation in minichannels and microchannels. In such flows the annular flow structure is dominant for most qualities and the heat transfer coefficient is dependent on the convective mechanism.
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- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- Baltic Heat Transfer Conference : 6th BHTC, Tampere, Finland, 24-26 August 2011 strony 25 - 31
- Language:
- English
- Publication year:
- 2011
- Bibliographic description:
- Mikielewicz D., Andrzejczyk R., Mikielewicz J.: Non-adiabatic Effects in Pressure Drop Calculations in Flow Boiling and Flow Condensation in Minichannels// Baltic Heat Transfer Conference : 6th BHTC, Tampere, Finland, 24-26 August 2011/ ed. Tampere University of Technology. Finlandia: , 2011, s.25-31
- Verified by:
- Gdańsk University of Technology
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