针对船舰核反应堆内板式燃料狭窄通道间高温高压条件下沸腾传热问题
通过试验的方法对并联窄矩形通道内去离子水上升流动沸腾传热和流量分配规律展开了研究。设计了板式燃料电加热模拟体
制作了适用于高参数下的并联矩形窄缝通道流通结构
解决了高温高压下试验段密封、绝缘和热膨胀等问题。试验段本体为宽高比39.4的并联矩形通道
试验工况为入口压力2.1~10 MPa、入口温度80~299℃、质量流速1 000~1 500 kg/(m
2
·s)、热流密度100~300 kW/m
2
。结果表明:2毫米级窄缝矩形通道内单相传热特性与常规圆形通道内传热规律无明显差异;通道内工质沸腾后
热流密度成为沸腾传热主导因素
质量流速对换热特性影响减弱;从壁温、质量流速、热流密度和压力分析双通道传热特性差异
发现相同工况条件下双通道相同位置传热系数偏差不超过±7%
从传热角度看两个并联矩形通道流量分配趋于均匀;将试验数据与5个现存沸腾传热关联式进行了对比
并以Kim公式为基础对关联式进行了改进
拟合得到一个新关联式
改进后的关联式与试验数据吻合良好
分别有77.1%、96.4%的预测值与试验值偏差在±10%、±20%范围内。
郑银银.竖直矩形小通道内上升流饱和沸腾换热规律的研究[D].哈尔滨工业大学,2015(02).
Shengjie Gong,Yong Mei,Muhammad Yasir Amin,Botao Zhang,Weimin Ma.Orientation effect on heat transfer coefficient of a downward surface for flow boiling in a rectangular channel under low flow rate[J].International Journal of Heat and Mass Transfer,2020.
Alberto Ghione,Brigitte Noel,Paolo Vinai,Christophe Demazière.Assessment of thermal–hydraulic correlations for narrow rectangular channels with high heat flux and coolant velocity[J].International Journal of Heat and Mass Transfer,2016.
Yulong Zhang,Vijay Sethi.Compact heat exchange reactor for synthesis of mixed alcohols[J].Catalysis Today,2016.
Hideo Mori.Two-Phase Flow and Boiling Heat Transfer in Small-Diameter Tubes[J].Heat Transfer Engineering,2016.
Xiande Fang,Zhanru Zhou,Hao Wang.Heat transfer correlation for saturated flow boiling of water[J].Applied Thermal Engineering,2015.
Liang Gong,Jin Zhao,Shanbo Huang.Numerical study on layout of micro-channel heat sink for thermal management of electronic devices[J].Applied Thermal Engineering,2015.
Zhen-Hui Liang,Hang Zhang,Sui-Zheng Qiu,Guang-Hui Su.Experimental investigation on thermal-hydraulic characteristics of narrow rectangular channels with simulated neutronic feedback[J].Nuclear Engineering and Design,2014.
DAESEONG JO,OMAR S. AL-YAHIA,RAGA'I M. ALTAMIMI,JONGHARK PARK,HEETAEK CHAE.EXPERIMENTAL INVESTIGATION OF CONVECTIVE HEAT TRANSFER IN A NARROW RECTANGULAR CHANNEL FOR UPWARD AND DOWNWARD FLOWS[J].Nuclear Engineering and Technology,2014.
Sung-Min Kim,Issam Mudawar.Universal approach to predicting saturated flow boiling heat transfer in mini/micro-channels – Part II. Two-phase heat transfer coefficient[J].International Journal of Heat and Mass Transfer,2013.
Wei Li,Zan Wu.A general correlation for evaporative heat transfer in micro/mini-channels[J].International Journal of Heat and Mass Transfer,2010.
Jong-Taek Oh,A.S. Pamitran,Kwang-Il Choi,Pega Hrnjak.Experimental investigation on two-phase flow boiling heat transfer of five refrigerants in horizontal small tubes of 0.5, 1.5 and 3.0<ce:hsp sp="0.25"/>mm inner diameters[J].International Journal of Heat and Mass Transfer,2010.
Licheng Sun,Kaichiro Mishima.An evaluation of prediction methods for saturated flow boiling heat transfer in mini-channels[J].International Journal of Heat and Mass Transfer,2009.
Shizuo Saitoh,Hirofumi Daiguji,Eiji Hihara.Correlation for boiling heat transfer of R-134a in horizontal tubes including effect of tube diameter[J].International Journal of Heat and Mass Transfer,2007.
S. Grohmann.Measurement and modeling of single-phase and flow-boiling heat transfer in microtubes[J].International Journal of Heat and Mass Transfer,2005.
T.N. Tran,M.W. Wambsganss,D.M. France.Small circular- and rectangular-channel boiling with two refrigerants[J].International Journal of Multiphase Flow,1996(3).
Liu Z.,Winterton R.H.S..A general correlation for saturated and subcooled flow boiling in tubes and annuli, based on a nucleate pool boiling equation[J].International Journal of Heat and Mass Transfer,1991(11).
Kandlikar S. G..A Model for Correlating Flow Boiling Heat Transfer in Augmented Tubes and Compact Evaporators[J].Journal of Heat Transfer,1991(4).
0
浏览量
3
下载量
5
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621