EMAT Detection Method of Spray Cooling Characteristics for Industrial Nozzle
The paper describes a new ultrasonic measurement technology that evaluates a spray nozzle cooling characteristics based on measured time-of-flight data using an electromagnetic ultrasonic transducer(EMAT).A spiral electromagnetism ultrasonic transducer was used to measure the ultrasonic velocity dependence of temperature in a certain thickness metal plate.The instantaneous time-of-flight time data were used to determine the velocity and deduce the interior and surface temperature.To verify the validity of the ultrasonic measurement result,one-dimensional unsteady heat transmission equation is established to compute the heat transfer coefficients(HTC)theoretically compared with ultrasonic measurement results.Through some one-dimensional analysis,this work will show that the HTC is a natural and stable quantity to estimate ultrasonic time of flight measurements.
??Heat Transfer Ultrasonic Spray cooling Pulse-echo
Qi OUYANG YueBing ZENG Xinglan ZHANG XiMeng CHEN
Institute of Smart System and Renewable Energy,College of Automation,Chongqing University,Chongqing College of Computer Science and Engineering,Chongqing University of Technology,Chongqing 400050
国际会议
长沙
英文
3279-3284
2014-05-31（万方平台首次上网日期，不代表论文的发表时间）