管网漏损率,leakage rate of pipe network
1)leakage rate of pipe network管网漏损率
1.Determination of theleakage rate of pipe network and leakage control;谈管网漏损率的确定及管网漏损的控制
2)leakage of distribution systems管网漏损
英文短句/例句
1.Study on Network Leakage Region Determination and Leakage Estimation in Urban Water Supply System;城市供水管网漏损区判定及漏损量估计的研究
2.The Study of Water Loss Control in Western Kunming;昆明市西片区供水管网漏损控制研究
3.Research on Leakage Reason and Control Measure of Water Supply Network;供水管网漏损原因与控制措施的研究
4.Study on Method of Leakage Localization of Water Supply Networks城市供水管网漏损定位计算方法的研究
5.Study on Forecasting Models for Urban Water Supply Network Based on Elman Neural Network基于Elman神经网络城市供水管网漏损预测模型研究
6.DMA Technology and Optimal Location of Control Vavles in Water Distribution Leakage Control供水管网漏损控制的DMA技术及阀门布置的优化研究
7.The Leaking Analysis and Lifetime Forecast of Urban Gas Pipeline Based on ANN and Expert System;基于神经网络和专家系统的城镇煤气管道漏损分析与寿命预测
8.Treatment of urine leakage with iatrogenic ureteral injury by transurethral ureteroscopy经尿道输尿管镜处理医源性损伤后输尿管漏尿
9.Characteristic of Acoustic Signal and Simulation Study on Leak Detection System for Buried Water Supply Pipe;埋地供水管漏损的声信号特征及检漏系统仿真分析
10.The Detection of Leakage and Break in Water Supply Distribution Networks Based on the SCADA System;基于SCADA系统的供水管网检漏检爆
11.The Mechanism Study and Forecasting of Leakage the Small Town Water Pipe Network;小城镇给水管网渗漏预测及机理研究
12.Analysis of Pipe Exploding and Breaking and Research on Measures of Reducing Leakage in the Water Supply Networks of Tianjin City;天津市供水管网爆管折管分析及降漏对策研究
13.Studies on Damage Detection and Leakage Monitoring and Localization of Offshore Pipeline;海底管道损伤检测及泄漏定位监测技术的研究
14.The management of bile leakage after bile duct injury in laparoscopic cholecystectomy腹腔镜胆囊切除术胆管损伤术后胆漏的处理
15.Signal Processing for Leak Detection and Location of Water Distribution Pipelines;供水管网泄漏检测定位中的信号处理研究
16.The Application of Neural Network in Magnetic Flux Leakage Signals;神经网络在管道漏磁信号分析中的应用
17.MFL Signal Process Based on Wavelet Analysis and Neural Network;基于小波分析和神经网络的管道漏磁信号处理
18.Analysis and Dynamic Modeling Method of Water Leakage in Water Distribution Systems;给水管网漏水量分析与动态模拟计算方法研究
相关短句/例句
leakage of distribution systems管网漏损
3)water leakage forecasting管网漏损预测
4)leakage rate漏损率
1.Through the comparison of the leakage data of the water supply pipe networks in different areas,It can be found that the free water supply quantity,as a basis datum for calculatingleakage rate,is a guess value,and theleakage rate based on the guess value is not comparable.通过比较各地供水管网的漏损数据,可以发现"免费供水量"这个计算漏损率的基础数据实际是推测值,而建立在推测值基础上的漏损率不具有可比性。
5)pipeline leakage管道漏损
1.Based on the analysis and categories of insecure factors affecting gas pipelines leakage, a comprehensive assessment model for gaspipeline leakage is established by combining fault tree method and expert grading method.在管道漏损的各种因素分析与分类的基础上,建立管道漏损综合评价模型,结合事故树法和专家评分法,实现对管道运行状况的评价。
6)water leakage management漏损管理
延伸阅读
网损网损transmission lossesWongSUn网损(transmission losses)电力在从发电厂送到用户的过程中，在主干网络中所引起的电能损耗.电能损耗一般通过功率损耗来计算。功率损耗可分为线路功率损耗和变压器功率损耗，输电功率损耗和配电功率损耗，有功功率损耗和无功功率损耗等。有功功率损耗必然伴随着电能损耗，使能源消费量增加。因此.采用各种措施降低电力系统有功功率损耗，具有很大的经济意义。无功功率损耗不直接引起电能损耗，而是通过增大的电流而增加有功功率损耗，从而加大了电能损耗。线路有功功率损耗△尸，和无功功率损耗△Q*如下式、，产、，户11Q口了‘、r‘、△尸△Qw-刃三赓燮*，+二:。，。型群x，一二:。w。式中尸、Q、U为线路同一端的有功功率、无功功率、电压幅值;U。为线路两端平均电压幅值;R，、Xw为线路串联电阻、电抗;G。。、B、。为线路并联(对地)电导、电纳。U若G。。为电晕损耗;U若Bw。为线路充电功率，是负的无功功率损耗。在配电网中这两项很小，一般忽略不计。变压器有功功率损耗△尸T和无功功率损耗△Q丁如下式、，产、少八j月任了叮、了r、△尸T-PZ+QZ U2△Q:-PZ+QZ U2RT+UZG丁。XT+UZB丁。式中尸、Q、U为变压器同一端的有功功率、无功功率、电压幅值;RT、X丁为变压器串联电阻、电抗;GT。、BT。为变压器并联(励磁回路)电导、电纳。式(l)~式(4)中一部分功率损耗与传输功率(或电流)有关，传输功率越大功率损耗越大，一般这一部分功率损失构成网损的主要部分;式(l)~式(4)中另一部分功率损耗与传输功率无关而仅与电压有关。电力系统经济调度考虑的因素之一是降低随传送功率变化的这一部分有功功率损耗。在电力系统发电厂间进行有功功率经济分配中要协调各发电厂的发电费用和对应的输电损失费用。考虑网损修正的结果一般是鼓励输电损耗小的距负荷中心近的发电厂多发电.输电损耗大的距负荷中心远的发电厂少发电。电能损耗A是有功功率损耗△尸对时间t的积分值，即，一五甘dt(5)当t一876Oh时，A为全年电能损耗。由于有功功率损耗△尸在运行中随时间而变化，按式(5)很难准确计算电能损耗.实用中一般采用有限个典型潮流方式进行近似的计算。
