منابع مشابه
A Framework for Modeling and Control of Wastewater Pumping Stations
In waste water pumping stations, centrifugal pumps driven by induction motors are used to transport the effluent collected from residential and commercial buildings to the treatment plants. Due to the varying nature of collected effluent rate, means of pump flow control should be applied. Recently, there is an engineering debate on either recommending frequency converters control or on-and-off ...
متن کاملEnergy Savings Potential for Pumping Water in District Heating Stations
In district heating stations, the heat carrier is circulated between the energy source and consumers by a pumping system. Fluid handling systems, such as pumping systems, are responsible for a significant portion of the total electrical energy use. Significant opportunities exist to reduce pumping energy through smart design, retrofitting, and operating practices. Most existing systems requirin...
متن کاملInvestigation of Pipelines' Failure Problem of Elshabab Pumping Stations
The east Delta horizontal expansion reclamation project is one of the Egyptian reclamation projects which was implemented in 1981. The project area is approximately equal to 366,500 Feddans. It's located in Ismalia Governorate at kilo 96.5 Cairo-Ismalia road. The irrigation system in this project depends on pumping stations at the right bank of Ismalia Canal through pipelines. The pipelines wer...
متن کاملOPTIMAL CONTROL OF PUMPING STATIONS IN OPEN CHANNELS BY METAHEURISTIC FIREFLY ALGORITHM
Optimum control of upstream pumping station in open channels with given constraint in downstream end is presented in this paper. The upstream control is capable of minimizing water level fluctuations in the channel in which the downstream pumping station causes an undesirable wave. The proposed method combines an unsteady non-uniform flow solver with shock-capturing capability, Fourier series a...
متن کاملdevelopment and application of hybrid (nlp-ga) in the design and operation of pumping stations
pumps are among the early instruments invented by humans to be taken advantage of in the use of water utilities. design and operation problem of pumping stations is a type of mixed integer non linear programming, in which gradient based optimization methods are not efficient for solving complex problems of this type. in this regard, such evolutionary optimization algorithms as genetic algorithm...
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ژورنال
عنوان ژورنال: Nature Reviews Drug Discovery
سال: 2003
ISSN: 1474-1776,1474-1784
DOI: 10.1038/nrd1142