中国高等教育学会实验室管理工作分会第七次代表大会在北京大学成功召开  

The Error Analysis of Different Measuring Methods for Condensation Heat Transfer Outside a Tube

作　　者：王顺 乔宏斌 胡申华 

机构地区：南京工程学院电力仿真与控制工程中心,江苏南京211167

出　　处：《实验室研究与探索》2016年第8期5-9,共5页Research and Exploration In Laboratory

基　　金：周家自然科学基金项目（50966003）

摘　　要：2016年8月1日,中国高等教育学会实验室管理工作分会第七次会员代表大会在北京大学召开。来自全国201所高校的240余位代表出席了大会。中国高等教育学会瞿振元会长、康凯秘书长,北京大学副校长高松院士,北京大学副教务长、党委组织部部长严纯华院士,实验室与设备管理部部长张新祥教授,清华大学实验室与设备管理处武晓峰研究员等相关领导出席会议并讲话。An experimental device has been established in the present study to measure the condensation heat transfer coefficient of ethanol water mixed vapor outside a tube. Gnielinski correlation, double holes and single hole were applied to calculate wall temperature, respectively, error analysis of the three methods for heat transfer coefficient was made subsequently. The total experiment contained pure water vapor and binary mixed vapor of different concentration. Then two kinds of tube outer wall temperature methods were used to calculate the condensation heat transfer coefficient and outside tube temperature with the actual measured data. Temperature was calculated by using Gnielinski equation and iterative calculation theory There existed the difference of -10% - ＋20% measure error of two kinds method, hence, heat transfer coefficient of tube outside the condensation had larger error, namely between - 40% - ＋ 50%. But by the local scope of condensation heat transfer coefficient method （double holes） and local heat transfer coefficient method （single hole） , the error range was only -20% ~ ＋ 20%.

关 键 词：实验室管理 严纯华 副教务长 副校长 康凯 设备管理 张新 

分 类 号：TK121[动力工程及工程热物理—工程热物理]