张吉礼

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:Vice Dean of Graduate School

其他任职:建筑能源研究所所长

性别:男

毕业院校:哈尔滨建筑大学

学位:博士

所在单位:土木工程系

学科:供热、供燃气、通风及空调工程. 控制理论与控制工程. 建筑学

办公地点:大连市凌工路2号大连理工大学建设工程学院3号楼601室

联系方式:0411-84706260

电子邮箱:zjldlut@dlut.edu.cn

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Experimental study of a simple pressure loss coefficient model for multi-hole orifice

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论文类型:期刊论文

发表时间:2008-06-01

发表刊物:Journal of Harbin Institute of Technology (New Series)

收录刊物:EI

卷号:15

期号:3

页面范围:399-403

ISSN号:10059113

摘要:A throttling experiment for the multi-hole orifice (MO) using water was conducted based on the conclusion of key parameters affecting the MO throttling performance. Testing MOs and standard orifice plates (SOs) were designed for the throttling experiment to compare the throttling effect using the equivalent diameter ratio (RED) and diameter ratio (RD) as key parameters, respectively. Meanwhile, effective metrical conditions were provided for experimental accuracy. The throttling model form was determined according to the theoretical throttling model of SO. Then the unknown parameters involved were identified by experimental data. A good concordance between the modeling computation and experimental results shows a validation of the MO throtting model.