Heat transfer and crisis phenomena at pool boiling of liquid nitrogen on the surfaces with capillary-porous coatings

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• 作者：A.S. Surtaev^a ; ^{surtaev@itp.nsc.ru} ; A.N. Pavlenko^a ; D.V. Kuznetsov^a ; V.I. Kalita^b ; D.I. Komlev^b ; A. Yu. Ivannikov^b ; A.A. Radyuk^b
• 关键词：Boiling ; Capillary-porous coating ; Heat transfer enhancement ; Plasma spraying ; Critical heat flux ; Rapid heating
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2017
• 出版时间：May 2017
• 年：2017
• 卷：108
• 期：part_PA
• 页码：146-155
• 全文大小：2478 K
• 卷排序：108

文摘

Effect of novel capillary-porous coating on heat transfer and CHF at boiling is studied. Maximum enhancement of heat transfer on the surfaces with coating observed at low heat fluxes. Heat transfer coefficient and hysteresis phenomena significantly depend on thickness and morphology of the coatings. Dynamics of transitional processes and crisis phenomena at stepwise heat release is studied. The boiling crisis at transient heating degenerates on the coated heaters.