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水轮机效率     
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  turbine efficiency
     Design of the Analyticl System in Hydraulic Turbine Efficiency Test Based on Virtual Instrument
     基于虚拟仪器的水轮机效率试验分析系统的设计
短句来源
     Study on Turbine Efficiency Test of Longjing Hydropower Plant
     龙颈水电厂水轮机效率测试研究
短句来源
     And a comparison between the results of these two conditions was made. By not changing the rated speed,the rated voltage and the flow passage of turbine,but the turbine runner,the winding of stator,and dispelling the defects of the unit,the turbine efficiency increases 6.8% and the power output per year improves 3.8%.
     通过更换水轮机转轮和发电机定子线圈以及消除机组缺陷,在机组额定转速、额定电压和水轮机流道不变的条件下,实现水轮机效率提高6.8%,机组年发电量增加3.8%。
短句来源
     Hydraulic turbine efficiency experimet is the foundation of hydroelectric power station realizing eco- nomical operation,increasing generating benefits.
     水轮机效率试验是水电厂实现经济运行,提高发电效益的基础。
短句来源
     This paper simply illustrates the design of the analyticl system in hydraulic turbine efficiency which adopts virtual instrument technology.
     本文简单介绍了采用虚拟仪器技术设计的水轮机效率试验分析系统。
短句来源
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  water turbine efficiency
     This paper introduced some methods to test water turbine efficiency,and presented the efficiency test of unit 2# of Gongzui hydropower station in detail,summarized some experience about water turbine efficiency test using ultrasonic method,which would be helpful for conducting water turbine efficiency test
     论文综述了水轮发电机组现场效率测试的常用方法 ,并详细介绍了龚嘴电站 2 #水轮发电机组超声波效率测试的原理、方法和结论 ,总结了采用超声波法进行水轮机效率测试的经验 ,为今后开展水轮发电机组的效率测试工作提供了有益的借鉴
短句来源
  hydraulic turbine efficiency
     Design of the Analyticl System in Hydraulic Turbine Efficiency Test Based on Virtual Instrument
     基于虚拟仪器的水轮机效率试验分析系统的设计
短句来源
     Hydraulic turbine efficiency experimet is the foundation of hydroelectric power station realizing eco- nomical operation,increasing generating benefits.
     水轮机效率试验是水电厂实现经济运行,提高发电效益的基础。
短句来源
     This paper simply illustrates the design of the analyticl system in hydraulic turbine efficiency which adopts virtual instrument technology.
     本文简单介绍了采用虚拟仪器技术设计的水轮机效率试验分析系统。
短句来源
     The design of hydraulic turbine generator set of Xizhong hydropower plant was not rational, existed the problems of the lower hydraulic turbine efficiency and the serious cavitation erosion.
     西中电厂水轮发电机组设计不合理,存在水轮机效率与出力低,汽蚀严重等问题。
短句来源
     :This paper analyzed why hydraulic turbine efficiency for Chaoyanghu water power station is lower in detail. For this condition, the hydraulic turbine was replaced HL129 runner with A542a runner. The economic benefit is notable.
     本文详细分析了朝阳湖电站水轮机效率偏低的原因,并针对电站情况进行了增效技术改造,用A542a转轮替代了HL129转轮,取得了明显的经济效益。
短句来源
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  “水轮机效率”译为未确定词的双语例句
     The Application of FPGA in the Efficiency Measurement of Hydraulic Turbine
     FPGA在水轮机效率测量中的应用
短句来源
     The Application of the IPC Data Acquisition System to the Efficiency Test of the Hydraulic Turbine
     IPC数据采集系统在水轮机效率试验中的应用
短句来源
     Study on the digital processing application of efficiency curve of the water turbine
     水轮机效率曲线数字化处理的应用研究
短句来源
     The more excellent runner A835,as the substitute of runner HL220 , is made in case of keeping certain head,unchanged passage and in permitted cavi tation region. As a result,its efficiency increases by2%,and the output is over 10%.
     在水头一定、通道不变的条件下,在空化允许范围内,通过改型研制出性能更优秀的HL220转轮的替代产品A835,该转轮可以使整个水轮机效率提高近2%,出力增加10%以上。
短句来源
     Application of the Turbine Efficiency-cavitation Measurement System in Xiaolangdi Hydropower Station
     水轮机效率空蚀测量系统在小浪底水电站的应用
短句来源
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  turbine efficiency
The discussion concerns some alternatives of updating the high-pressure cylinder (HPC) flow path of the T-100-12.8 turbine using an optimal design method that made it possible to find and realize means of enhancing the turbine efficiency.
      
Considerably higher energy transfer rates can be obtained from a pulsed combustion although unsteady flow of a single jet combustor reduces the turbine efficiency.
      
Considerably higher energy transfer rates can be obtained from a pulsed combustion, but unsteady flow of a single jet combustor reduces the turbine efficiency.
      
The dramatic influence of the compressor and turbine efficiency is confirmed in a non-adiabatic operation.
      
The turbine efficiency can be increased by varying the impeller blade profile or the angular velocity of the impeller rotation and by some other design techniques.
      
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This paper presents a new method for the efficiency test of model water turbine with the help of a single board microcomputer. The mathematical model is set up, then the structures of hardware and software are described. The successful commission of the system greatly improves the test accurary and speed of model water turbine test bed.

本文介绍模型水轮机效率试验中使用单板微型计算机的一种新方法。先介绍建立数学模型,再介绍该系统的硬件和软件的结构。该系统的成功,极大地提高了模型水轮机试验台的试验精度和试验速度。

vertical-shaft turbines suggest much benift to low-head water power stations. Forms of conduits have notable effects on hydraulic efficiency of turbines. This paper introduces the measurement and analysis of flow losses in different forms of inlet and outlet conduits and proposes a rational form.

竖井贯流式水轮机应用于低水头小型水力发电方面有很大的优点,进出水过流通道的型状对水轮机效率的影响非常显著.本文将对不同型式的进出流道的水力损失进行测试与分析,並提出比较合理的流道型式.

This paper introduced the efficiency test results of hydraulic turbine on the set with surge tank and unit penstock by two flow measuring ways——pressuretime method and Winter-Kennedy Method. It recommended to apply pressuetime method with the real-time computing and analysis system by the microcomputer as calibrated test and acceptable test; and winter-Kennedy Method as a daily flow and efficiency measurement, in field efficiency test of hydraulic turbine. After application real-time computing and analysis system...

This paper introduced the efficiency test results of hydraulic turbine on the set with surge tank and unit penstock by two flow measuring ways——pressuretime method and Winter-Kennedy Method. It recommended to apply pressuetime method with the real-time computing and analysis system by the microcomputer as calibrated test and acceptable test; and winter-Kennedy Method as a daily flow and efficiency measurement, in field efficiency test of hydraulic turbine. After application real-time computing and analysis system by the microcomputer, the error of all results abtained by efficiency test of the two flow measuring ways can satisfy the requirement of international rules. The above Ways of efficiency test of hydraulic turbine are the simplest and the cheapest at present. The analysis and judge of the test can be mede in site. And all results including the mathematical equation of efficiency-output and error calculation can be also supplied on the field.

介绍了采用微机实时计算分析系统,用压力-时间法和蜗壳压差法两种测流方式在有调压井和分叉管机组上进行水轮机效率试验的结果.推荐在水轮机现场效率试验中应用带微机实时计算分析系统的压力-时间法测流方式作率定和验收试验,蜗壳压差法作经常性的流量效率测量。在应用微机实时计算分析系统后,两种测流方式的效率试验结果的误差均能满足国际规程规定的要求,是目前最为简便和便宜的水轮机效率试验方法.可在现场进行试验的分析判断,当场提供包括效率-出力数学方程和误差计算在内的全部结果.

 
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