Heat transfer enhancement using segmented non-boiling gas-liquid streams is examined. Segmentation results in a two phase flow of liquid/gas having a constant liquid fraction, i.e. no phase change occurs. In this flow configuration, enhanced heat transfer occurs as a result of a shorter effective thermal length and internal fluid circulation in the liquid plugs. A simple theory for laminar segmented flows is developed based on Graetz theory and comparisons made with existing data from the literature and new data obtained in a companion study.
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Heat Transfer Enhancement Using Laminar Gas-Liquid Segmented Fluid Streams
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Muzychka, YS, Walsh, EJ, & Walsh, P. "Heat Transfer Enhancement Using Laminar Gas-Liquid Segmented Fluid Streams." Proceedings of the ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASME 2009 InterPACK Conference, Volume 2. San Francisco, California, USA. July 19–23, 2009. pp. 261-272. ASME. https://doi.org/10.1115/InterPACK2009-89065
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