background the non-revenue water refers to a difference between the volume of water entering the system and billed authorized consumption. objectives the main purpose of this study is to determine the volume of non-revenue water in order to recognize the factors influencing water losses so that the information gathered can used in non-revenue water reduction management. materials and methods ka...

In the article there is the information about growth of unauthorized works on trunk pipelines and about corresponding economic losses as the result of the works. The structure of interconnecting security system for mentioned objects is offered. The interconnecting security system includes optical, vibroacoustic and seismic data acquisition channels and provides decision making algorithm for the...

Power loss is one <span lang="EN-US">of the important pointers used to measure performance of distributions networks. Many optimization algorithms have been proposed solve various optimal power flow problems in Electrical Engineering. In this paper, a novel technique, artificial algae algorithm developed robustly detect location and size distributed generation (DG) units for minimization ...

In this paper, numerical solution of beta-type Stirling engine was presented considering its non-ideal regenerator. To this end, the second-order model including heat and power losses was used. Then, a numerical code was applied for calculating geometrical and physical optimum values of the engine. To confirm the obtained results, the physical and geometrical parameters of the GPU-3 engine were...

In this country development of electrical power system particular for transmission line expansion and interconnection of neighbouring power system try to improve system security and economic operation. Due to this province in large scale power system, operation , control and expansion planning for particular system become challenging task to reduce transmission loss as minimum as possible for o...