Abstract
Heat transfer enhancements available from expanding the cross section of a microchannel or microchannel system in flow boiling are presented, including recommendations appropriate for design and selection of expanding channel heat sinks. The principal relevant operating parameters of a boiling-channel heat sink are the attainable critical heat flux (CHF), which limits the practical heat flux permissible and the pressure drop across the channel, which may impose substantial pumping costs on the loop and is coupled to stability of flow in the channels.
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Acknowledgments
The authors gratefully acknowledge the Office of Naval Research for funding and support. This work was partially supported by the Office of Naval Research as a MURI award (prime award number N00014-07-1-0723).
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Phelan, P., Miner, M. (2023). Flow Boiling Enhancement via Cross-Sectional Expansion. In: Yeoh, G.H., Joshi, J.B. (eds) Handbook of Multiphase Flow Science and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-287-092-6_17
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DOI: https://doi.org/10.1007/978-981-287-092-6_17
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