环状狭缝通道流动沸腾压降的实验研究  

An experimental investigation on the pressure drop of flow boiling through narrow annular channels

作　　者：苏顺玉[1] 王晓墨[1] 黄素逸[1] 

机构地区：[1]华中科技大学能源与动力工程学院

出　　处：《华中科技大学学报（自然科学版）》2002年第9期88-90,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (5 0 0 76 0 14 ) ;国家重点基础研究发展规划项目 (G2 0 0 0 0 2 6 30 3)

摘　　要：以蒸馏水为工质 ,对压力范围 2 .0～ 3.5MPa ,质量流量 5～ 18kg/h ,热流密度 0～ 2 10kW /m2 ,间隙为1～ 2mm的环状狭缝通道中的流动沸腾进行了实验研究 .分析了影响流动总压降的诸因素 ,如进口压力、进口水温和质量流量等 .模拟出了计算摩擦压降的经验关系式 ,试验数据与计算结果误差约± 15 % 。An experimental investigation is made on the flow boiling in narrow annular channels with distilled water as the received basis, and with a pressure range of 2.0～3.5?MPa, a mass flux of 5～18?kg/h, a specific rate of heat flow of 0～210?kW/m 2 and a gap of 1～2?mm. The factors that influence the total flow pressure drop such as the inlet pressure, inlet temperature and mass flux are analyzed. The empirical relationship for calculating the frictional pressure drop is sim ulated. The data obtained from this relationship are compared with experimental data with an error within ±15?%. This relationship can be used to predict the frictional pressure drop within the range of the said experiment.

关 键 词：环状狭缝通道 流动沸腾压降 实验研究 摩擦压降 经验关系式 流动传热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]