استفاده از مهندسی ارزش در طرح پمپاژ کوهرنگ با هدف کنترل و کاهش پدیده ضربه قوچ

At the start of execution of the water pipeline of the Kuhrang River to Morvarid Spring project as one stage pumping, the client was confronted with problems of high time and cost to provide the main components of the project such as high pressure pumps and steel pipe with nominal pressure of 40 bar and also Air Chamber. Therefore, in review of project two alternatives were considered.The Value Engineering was used to compare the time and cost and water hammer rate and the problems of each alternative. In this paper, both of the alternatives have been modeled with pumping station and pipeline at steady and unsteady conditions in Hammer software. Finally the results showed that using Value Engineering can eliminate the air chambers and reduce water hammer risk and also cause reduction about 20 to 30 percent in time and cost of preparing and implementing the various components of the project. At the start of execution of the water pipeline of the Kuhrang River to Morvarid Spring project as one stage pumping, the client was confronted with problems of high time and cost to provide the main components of the project such as high pressure pumps and steel pipe with nominal pressure of 40 bar and also Air Chamber. Therefore, in review of project two alternatives were considered.The Value Engineering was used to compare the time and cost and water hammer rate and the problems of each alternative. In this paper, both of the alternatives have been modeled with pumping station and pipeline at steady and unsteady conditions in Hammer software. Finally the results showed that using Value Engineering can eliminate the air chambers and reduce water hammer risk and also cause reduction about 20 to 30 percent in time and cost of preparing and implementing the various components of the project. At the start of execution of the water pipeline of the Kuhrang River to Morvarid Spring project as one stage pumping, the client was confronted with problems of high time and cost to provide the main components of the project such as high pressure pumps and steel pipe with nominal pressure of 40 bar and also Air Chamber. Therefore, in review of project two alternatives were considered.The Value Engineering was used to compare the time and cost and water hammer rate and the problems of each alternative. In this paper, both of the alternatives have been modeled with pumping station and pipeline at steady and unsteady conditions in Hammer software. Finally the results showed that using Value Engineering can eliminate the air chambers and reduce water hammer risk and also cause reduction about 20 to 30 percent in time and cost of preparing and implementing the various components of the project. At the start of execution of the water pipeline of the Kuhrang River to Morvarid Spring project as one stage pumping, the client was confronted with problems of high time and cost to provide the main components of the project such as high pressure pumps and steel pipe with nominal pressure of 40 bar and also Air Chamber. Therefore, in review of project two alternatives were considered.The Value Engineering was used to compare the time and cost and water hammer rate and the problems of each alternative. In this paper, both of the alternatives have been modeled with pumping station and pipeline at steady and unsteady conditions in Hammer software. Finally the results showed that using Value Engineering can eliminate the air chambers and reduce water hammer risk and also cause reduction about 20 to 30 percent in time and cost of preparing and implementing the various components of the project. At the start of execution of the water pipeline of the Kuhrang River to Morvarid Spring project as one stage pumping, the client was confronted with problems of high time and cost to provide the main components of the project such as high pressure pumps and steel pipe with nominal pressure of 40 bar and also Air Chamber. Therefore, in review of project two alternatives were considered.The Value Engineering was used to compare the time and cost and water hammer rate and the problems of each alternative. In this paper, both of the alternatives have been modeled with pumping station and pipeline at steady and unsteady conditions in Hammer software. Finally the results showed that using Value Engineering can eliminate the air chambers and reduce water hammer risk and also cause reduction about 20 to 30 percent in time and cost of preparing and implementing the various components of the project.