Based on the conservation law of energy and on the characteristics of the structure and flow of the primary surface heat exchanger(PSHE),a physical model and corresponding mathematical equations of transient temperature are presented.
研究工作流体温度和流量发生阶跃变化时PSHE出口温度的响应特性,分析指出一次表面换热器板片各几何参数以及通道形状对其温度响应特性的影响次序是板片厚度δ最强,宽度W和数目n次之,波纹通道形状最弱。
According to the structure characteristics and flow & heat transfer theory of primary surface heat exchanger(PSHE),a multi-objective optimization design model was established by optimization theory.
根据一次表面热交换器(PSHE)的结构特点和流动传热规律,应用优化理论建立以结构质量、传热系数和压力损失为目标函数,以流道几何尺寸和流速为独立设计变量的PSHE多目标优化设计模型,利用线性加权和法将多目标向量极值问题转化为单目标标量极值问题,编程求解该优化数学模型。
It shows that the screw changer is a better device for eliminating the effect of density change.
本文对散状物料水份测量中的密度变化这一难题进行了研究,提出了保持密度一致的各种方法与取样装置,并以煤粉为对象进行了实验,实验结果表明螺旋式一次变换器可以最大限度地克服密度对测量结果的影响。
Research and Design of a New Electronic Current Transducer Primary Converter
电子式电流互感器新型一次电流传感器的研究与设计
primary current (of a current transformer)
（电流互感器的）一次电流
Optics Direct Current Sensor With Novel Sensing Structure
一种新型传感结构的光学直流电流传感器
A Disposable Biosensor Based on Screen-Printed Electrode
一次性电化学酒精生物传感器的研究
Angle-measuring capacitive sensor with 4～20mA current output
一种4～20mA电流输出的电容角度传感器
Novel Current Sensor Adopting ASIC Technology
采用ASIC技术的新一代电流传感器
Noise Suppression Circuit in Current Sensor of Active Power Filter
一种有源滤波器中电流传感器噪声抑制电路
Abnormal situation reason analysis in the current transformer(CT) primary winding load current test
电流互感器一次通电中异常情况的原因分析
interferometric fiber optic current sensor
干涉式光纤电流传感器
Study of Disposable Organophosphorus Electrochemical Biosensors
一次性有机磷电化学生物传感器的研究
Analysis of an Oil-Immersed Current Transformer Primary Winding Failure
油浸式电流互感器一次绕组故障实例分析
Relation between Relay Protection and Distribution of Secondary Winding and Outlet Way of Primary Winding in Current Transformer
电流互感器二次绕组排列及一次绕组出线方式与继电保护的关系
The Development of a Kind of Eddy Current Sensor
一种电涡流传感器的研制——光纤传输时分双信道低功耗调频式电涡流传感器
rated accuracy limit primary current (of a protective current transformer)
（保护用电流互感器的）准确度限定的额定一次电流。
A Data Gathering System Based On Eddy Current Sensor
一种基于电涡流传感器的数据采集系统
Fibre Bragg Grating Sensor for Simultaneous Measurement of Current and Temperature
一种同时测量电流和温度的光纤光栅传感器
An auxiliary current transformer serves another function: that of providing electrical isolation between the main CT secondary and the computer input system.
中间电流互感器还起到另一作用：对电流互感器二次侧与计算机输入系统进行电气隔离。
Research on selection of secondary parameter of current transformer and voltage transformer
电流互感器、电压互感器二次参数选择问题研究