Heat transfer mechanism during flow boiling of fluids in small channels differs significantly depending on whether two-phase flow is in slug or annular regime. Understanding of the transition conditions between homogeneous slug flow and annular two-phase flow is an important topic for mini- and microchannel heat exchangers performance optimization. The current study focuses on the analysis of thermodynamic equilibrium conditions of two neighboring two-phase flow regimes. In both flow patterns the total energy is equal at specific mass flux and vapor quality and those values can be used to mark the transition conditions.
- Heat Transfer Division
- Fluids Engineering Division
Thermodynamic Analysis of the Transition Between Slug and Annular Flow in Minichannels
Khovalyg, DM, Hrnjak, PS, & Jacobi, AM. "Thermodynamic Analysis of the Transition Between Slug and Annular Flow in Minichannels." Proceedings of the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. San Francisco, California, USA. July 6–9, 2015. V001T04A065. ASME. https://doi.org/10.1115/ICNMM2015-48555
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