1)turbine efficiency水轮机效率
英文短句/例句
1.The Study and Development in Efficiency Measure System of the Hydro-turbine Based on Virtual Instrument;基于虚拟仪器的水轮机效率测试系统
2.Calculation of Hydraulic Turbine Efficiency Based on RBF Neural Network and Its Application基于RBF神经网络的水轮机效率计算与应用
3.a large and efficient version of a water wheel used to drive an electric generator.水轮的大的有效率的样式用来驱动发电机。
4.Study on the Application of FPGA in the Instrument of Hydrogenerator s Efficiency Measurement;FPGA在水轮机组效率测量仪中的应用研究
5.Research and Design of Efficiency Online Monitoring System for Hydro-generator Unit in Hydropower Station;水电站水轮发电机组效率在线监测系统的开发与研究
6.This paper introduces racing of original integrated operation characteristic curves and efficiency curves after uprating and refurbishing hydrogenerator of shangyoujiang power plant.介绍上犹江水电厂水轮机增容改造后的效率试验过程及效率曲线与运转综合特性曲线的绘制。
7.Turbine Index Method and Design and Implementation of Ultrasonic Method Efficiency Test Software水轮机差压法及超声波法效率试验软件的设计及实现
8.Modern wind turbines are considerably more efficient than their predecessors.现代的风轮机比老式风轮机的效率要高许多。
9.The Research on Efficiency of the Cam with Pivot Roller Follower;摆动滚子从动件凸轮机构的效率研究
10.Correction Computation of Engine Turbocharging Efficiency under Plateau Conditions高原发动机涡轮增压的效率修正计算
11.Model acceptance test is applied to accept Yantan turbine performances. The model efficiency maximum is 92 percent in the completion of similar prototype.岩滩水电站水轮机性能采用模型验收试验方式验收．其全模拟模型最高效率达到92％。
12.Design of Cam Mechanism with Translating Follower upon its Efficiency按机构效率设计直动从动杆的凸轮机构
13.The Simulation Research of the Planetary Gear Mechanism's Efficiency based on Virtual Prototype Technology基于虚拟样机的行星齿轮机构效率仿真分析
14.Increasing Thickening Efficiency of Turbine Circulation Water to Reduce Additional Water Amount提高汽轮机循环水浓缩倍率降低补水量
15.Error Analysis on Runner Model Efficiency Test of Pumped Storage Power Station抽水蓄能电站转轮模型效率试验误差分析
16.Efficiency calculation model of disc cam mechanism with translating flat-bottomed follower直动平底从动件盘形凸轮机构效率计算模型
17.Optimum Design of Disk Cam Mechanisms with Rectiliner Translation Roller Follower for Maximum Efficiency of Lift Travel按升程效率最佳优化设计直动从动件凸轮机构
18.Study on Efficiency of Planetary Gear Train of Automatic Transmission;自动变速器中行星齿轮机构的传动效率研究
相关短句/例句
turbine hydraulic efficiency水轮机的水力效率
3)turbine mechanical efficiency水轮机的机械效率
4)turbine volumetric efficiency水轮机的容积效率
5)turbine efficiency水涡轮效率
6)steam turbine efficiency汽轮机效率
延伸阅读
水轮机效率试验水轮机效率试验efficiency test of hydro turbines 水轮机的效率用下式表示 尸。9·slQH乳式中乳—为发电机效率，可用厂家给定值，也可实 测(见水轮发电机效率试脸); 尸.—发电机功率; H—水头; Q—水轮机流量。 发电机翰出功率P，的侧t有如下几种侧t方法。 双瓦特表法用于三相三线制的大中型发电机，是最常用的方法。瓦特表接线原理图示于图1。根据两表的读数Wl、WZ及其刻度常数C，互感器的变比K，和K犷可算出: P。=CK:Kv(士W，士WZ)/1000(l+△犬) _式中么尺为互感器的A曰气甲:图1双瓦特表接线原理图修正系数。 三瓦特表法适用于三相四线制电机，这种接线制只在小型发电机采用。瓦特表接线原理图见图2。功率用下式计算凡一CK:Kv(士W，工WZ士W3)/1000(1+△犬) 功率传感器法其原理和前述两种方法相同，用于自动测量、显示和记录。 水头的洲.单位质量水体的能量称为单位水能或比能，单位重量水体的能量称为水头(H)。┌─┬─┐│ │ │└─┴─┘图2三瓦特表接线原理图 混流式水轮机的工作水头指蜗壳进口与尾水管出口间单位重量水体的能量差: P，一P，.a1V琴一a，V攀月-—十一 尸g乙g+(Z一22)式中尸;、尸:为两断面处水的表压力;g为重力加速度.p为水的密度;Z，、22为两断面处压力表中心与侧点的高程差;al、aZ为两断面处流速不均匀系数;V，、VZ为断面流速。 抽流式水轮机的工作水头定义为进口闸门后与尾水管出口间单位重量水体的能量差a IV{一a:VI 2g+Z式中Z为上下游两侧量断面的水位差。冲击式水轮机的工作水头为总进水管末端单位重量水体的能量+21管道内的压力升高(水锤效应)，在关闭过程中压力升高的数值和过程与水轮机的流量相关。图5为水锤波示意图。
