The influence of non-uniform heating on two-phase flow instability in subchannel

• Published in: Nuclear engineering and design Vol. 345; pp. 7 - 14
• Main Authors: Wang, Sipeng, Yang, Bao-Wen, Mao, Hu, Lin, Yu-chen, Wang, Guanyi
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.04.2019; Elsevier BV
• Subjects: Binary systems; Boilers; Crack propagation; Fatigue failure; Flow instability; Flow stability; Heat transfer; Heating; Heating systems; High temperature effects; Multiphase flow; Non-uniform heating; Nuclear engineering; Nuclear reactors; Nuclear safety; Phase change number; Phase transitions; Power factor; Reactor safety; Reactors; Shape effects; Shape factor; Subchannel; Subcooling number; Thermal fatigue; Two phase flow; Vibrations; Phase change number; Subcooling number; Flow instability; Non-uniform heating; Subchannel
• ISSN: 0029-5493; 1872-759X
• DOI: 10.1016/j.nucengdes.2019.01.024

•An open channel model is introduced and validated by experimental results.•The system stabilities under uniform, axial and radial non-uniform heating conditions are analyzed.•Effects of peak value, power peak location and power curve shape are analyzed under axial non-uniform heating condition. Two...