Film boiling heat transfer prediction of liquid nitrogen from different geometry heaters. (August 2020)

• Record Type: Journal Article
• Authors: Lei, Wang; Jiaojiao, Wang; Tian, Yan; Xiaoning, Huang; Fushou, Xie; Yanzhong, Li
• Is Part Of: International journal of multiphase flow. Volume 129(2020)
• Publication Date: 2020-08
• Subjects: Film boiling -- Cryogenic propellant -- Heat transfer -- Empirical correlation -- Boiling curve; Multiphase flow -- Periodicals; Écoulement polyphasique -- Périodiques; Multiphase flow; Periodicals; 620.1064
• DOI: 10.1016/j.ijmultiphaseflow.2020.103294
• Languages: English
• ISSNs: 0301-9322

Abstract

Highlights: A unified formation of correlation is proposed to reveal the film boiling properties. Critical diameter to distinguish cylinder and wire conditions is introduced. A correlation for film boiling heat transfer at plate heaters is proposed. Abstract: In the present paper, available experimental data and predictive correlations on cryogenic film boiling heat transfer are summarized and analyzed. A unified correlation formation, which could standardize the most of the existing heat transfer correlations, is used to perform comparison studies, and a series of validated correlations focusing on predicting cryogenic boiling events are reached. It demonstrates that Merte & Clark correlation and Bromley correlation are recommended to predict cryogenic film boiling heat flux at spherical and horizontal tube heaters respectively, and the deviations are within ±15% and ±8%. A preliminary data analysis indicates that Laplace reference length could be regarded as a critical diameter to distinguish tube and wire conditions. Moreover, a unified correlation without considering surface orientation effect is proposed to account for the plate heater boiling issue in the view of engineering application, and the deviations are within ±40%. Generally, the present study could provide researchers with reliable research tools to conduct cryogenic heat transfer analysis.