Mini-channel flow condensation enhancement through hydrophobicity in the presence of noncondensable gas

Abstract

Steam condensation is important for a broad range of industrial applications, including power generation and nuclear containment systems. The presence of noncondensable gases in these systems significantly reduces heat transfer, prompting the need for condensation heat transfer enhancement. Steam was condensed in the presence of nitrogen in hydrophilic and hydrophobic 1.82-mm rectangular mini-channels for a range of experimental conditions: steam mass flux (i.e., 35–75kg/m2s), steam quality (i.e., 0.3

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Citation: Chen, X., Morrow, J. A., & Derby, M. M. (2017). Mini-channel flow condensation enhancement through hydrophobicity in the presence of noncondensable gas. International Journal of Heat and Mass Transfer, 115, 11–18. https://doi.org/10.1016/j.ijheatmasstransfer.2017.07.029

Keywords

Flow condensation, Noncondensable gas, Minichannel, Wettability

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