...Proceedings of the 2024 31st International Conference on Nuclear Engineering ICONE31 August 4-8, 2024, Prague, Czech Republic ICONE31-136177 Study on Single-Phase Flow and Heat Transfer Characteristics of Vertical Narrow Rectangular Channel Under Rolling Motion with Nonuniform Heating Zhu Di Sun...

... opposite cladding. The fuel meat temperature under the blister coverage area significantly increased. Further research revealed the effects of blister area, height, and number on plate fuel elements. blister narrow rectangular channel fuel plate subcooled boiling CFD Proceedings of the 2024...

... Abstract Subcooled flow boiling in narrow rectangular channel is a very effective heat transfer method and is very important to nuclear reactor design and thermal hydraulic safety. The departure frequency of bubbles in subcooled boiling flow has direct influence on heat transfer. Subcooled flow...

... Abstract In this study, we experimentally studied the dynamic response of the sinusoidal single-phase flow in a horizontal narrow rectangular pipe. The experimental results show that, in narrow rectangular channel, the flowrate and the pressure drop also meet the first order dynamic response...

...Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-90438 NUMERICAL STUDY OF HEAT TRANSFER ENHANCEMENT IN NARROW RECTANGULAR CHANNEL WITH ROTATED ELLIPTIC DIMPLE WITH INCLINED SLIT WANG Chuntao School of Chemical...

...Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-92643 ADAPTABILITY ANALYSIS OF RESISTANCE AND HEAT TRANSFER CHARACTERISTICS OF DIFFERENT TURBULENCE MODELS IN NARROW RECTANGULAR CHANNEL YU Shengzhi Wuhan Second Ship...

... Abstract Liquid metal has the advantages of high boiling point and strong thermal conductivity and is selected as the coolant for a new generation nuclear system. In addition, the narrow rectangular channel is used in the small reactors or research reactors due to its compact structure and high...

... Abstract Safety is the biggest concern of nuclear power plant and research reactors.As one of the three primary thermal design criteria for rectors, the critical heat flux (CHF) guarantee the reactor’s safety and economics. The bubble dynamics in narrow rectangular channel is didderent from...

... Abstract As a key physical parameter in annular flow, liquid film thickness is crucial to study the behavior characteristics about gas-liquid interface under annular flow conditions. In this study, the narrow rectangular channel is taken as the research object, and air-water were used...

...1 Copyright © 2013 by ASME RESEARCH ON BUBBLE GROWTH AND FREQUENCY AT HIGHER SYSTEM PRESSURE IN NARROW RECTANGULAR CHANNEL Keywords: narrow rectangular channel; bubble growth; bubble frequency; heat flux; inlet subcooling; mass flux; ABSTRACT In present work, the characteristics of bubble growth...

... with a mean deviation of 18.7% Key word: Two-phase Viscosity, Narrow Rectangular channel, Pressure Drop, Two-phase Flow NOMENCLATURE a aspect ratio Bo Bond number=gD/2)2/ B1, B2, y correlations in Table (1) D hydraulic diameter, m f frictional factor g acceleration of gravity, m/s2 G mass flux, kg/m2·s H...

... temperature fluctuations narrow rectangular channel forced convection heat transfer rolling motion An experimental investigation of forced convection heat transfer was conducted in a narrow rectangular channel under rolling motion. Experimental results show that rolling motion induces...

... is improved by 62.9%. The bubble growth and its evolutionary process in narrow rectangular channel with LVGs have been obtained during a short term when the CHF occurs, and it is found that the bubbles have been affected intensely by LV. Based on these experiment data, the growth and aggregation of bubbles...

... 08 04 2011 Visualized experimental observation on flow patterns during flow boiling of water under single-side heated and fluid-inlet subcooled conditions in a vertical narrow rectangular channel with the cross-section of 40×3 mm 2 have been carried out. Four discernible flow...

... 1 VISUALIZATION OF BUBBLE GROWTH AND DEPARTURE IN A VERTICAL NARROW RECTANGULAR CHANNEL Jian-Jun XU, Bing-De CHEN, Xiao-Jun WANG (Key Laboratory of Bubble Physics and Natural Circulation, Nuclear Power Institute of China, Chengdu 610041, 610041, P.O.box 622-205 Chengdu city P.R.China...

... 23 02 2010 The purpose of this study is to discover the differences of pressure drop and heat transfer of single-phase water flow between conventional channels and narrow rectangular channels. Furthermore, the differences between the level and the vertical channel have been studied...