... Abstract The flow boiling is widely encountered in various fields, ranging from the chemical and process industries to boiling water reactors and steam power plants etc. In order to gain a better understanding of this boiling process, one of the bubble dynamic parameters, the bubble departure...

... Abstract Due to the absence of detailed two-phase flow interface dynamic behavior in the vicinity of the heated wall during CHF transient, a deep understanding of the boiling crisis phenomenon is not achieved. In this paper, a flow boiling heat transfer facility is designed and constructed...

... Abstract Our research thoroughly examines the Critical Heat Flux (CHF) in downward-facing flow boiling, essential for comprehending the intricacy of the CHF phenomenon. Conducted on a downward-facing copper surface within a flow loop, our research uncovered significant differences in CHF...

... Abstract The visual experiment of subcooled flow boiling is performed in a vertical square channel with one heating rod for water. The objective is to investigate the vapor-liquid interface fluctuation characteristics to reveal the trigger mechanism of subcooled flow boiling critical heat flux...

... operation. Challenges till remain in accurately predicting the subcooled flow boiling curve especially in the low pressure and low mass flux conditions due to its complex boiling process. The present study introduces a numerical model to evaluate subcooled flow boiling heat flux. The proposed model can...

...-phase friction pressure drop based on different inclination angles are proposed. rod bundle natural circulation inclination frictional resistance flow boiling Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29...

..., the effects of coolant mass flow and inlet subcooling on CHF were numerically studied. The results shown that two-fluid model coupled with CHF model was qualified to predict CHF accurately. This work can be referred when one predicts CHF in complicated geometry by CFD methodology. flow boiling wall...

... Abstract The flow boiling heat transfer in micro/mini-channels is encountered in many compact heat exchangers such as the once-through steam generator in nuclear reactors due to its high heat transfer efficiency and thus accurately predicting the heat transfer coefficients is of great...

... In view of the practical significance of a correlation of heat transfer coefficient in the aspect of such applications as engineering and predictive, some efforts towards correlating flow boiling heat transfer correlation for vertical rectangular narrow channels have been made in this paper. Based...

... PRESSURE DROP CHARACTERISTICS OF FLOW BOILING IN NARROW RECTANGULAR CHANNEL Shu-ping Lv Department of Nuclear Engineering, Chongqing University Chongqing 400044, China Liang-ming Pan* Department of Nuclear Engineering, Chongqing University Chongqing400044, China De-qi Chen Department of Nuclear...

.... Then the characteristics of pressure drop in the narrow channel is affected significantly. In order to investigate the effect of bubble behavior on flow boiling pressure drop, a visual study was carried out with a high speed camera (5,000 frame per second was used) to record the bubble behavior. It is found that the OSV...

... significant than that in a vertical tube. These differences seem to be mainly due to the effect of the buoyancy force. flow boiling CHF limiting critical quality tube water R-134a na Proceedings of ICONE10 1 Copyright © 2002 by ASME outlet pressure of 8 (1.31), 9 (1.48), 10 (1.67), 11 (1.84...

... Flow Visualization Flow Boiling Film Sub-cooled Critical Heat Flux The observation of sub-cooled flow film boiling was performed on a single-side-heated flat heat exchanger by using refrigerant R134a as the testing fluid. A stable vapor film was observed with the co-existence of sub...