INVESTIGATION EFFECT OF CHANGES GEOMETRY OF IMPELLER ON TURBINE MODE PERFORMANCE OF THE CENTRIFUGAL PUMP AT THE GOVERNING CONDITION OF THE URBAN WATER DISTRIBUTION NETWORK

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TAHANI MOJTABA; SAREMIAN SALMAN

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:1 Page(s): 11-19

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Title

INVESTIGATION EFFECT OF CHANGES GEOMETRY OF IMPELLER ON TURBINE MODE PERFORMANCE OF THE CENTRIFUGAL PUMP AT THE GOVERNING CONDITION OF THE URBAN WATER DISTRIBUTION NETWORK

Author(s)

TAHANI MOJTABA | SAREMIAN SALMAN | Issue Writer Certificate

Keywords

PUMP AS TURBINEQ1

PRESSURE REDUCERQ1

COMPUTATIONAL FLUID DYNAMICSQ1

INCREASE THE EFFICIENCYQ1

BLADE THICKNESSQ1

Abstract

With increasing amount of pollution by thermal power plants in Industrial and developing countries, tend to use small-sized hydroelectric plants increased. In complex terrain regions there are usually a significant height difference between refineries and using place, the pressure can to produce electricity by power plants PRESSURE REDUCER. The power plant is due to the relatively high initial cost less were used. Gradually, with the possibility of using PUMP AS TURBINE and reducing the cost of building a micro power plant use the plant was expanded. Therefore, in this study centrifugal pump by CFturbo software was designed and for Numerical analysis of the three-dimensional fluid, the simulation was performed using the CFX software on SST k-w turbulence model. The numerical results were compared with experimental in pump and turbine modes and showed good agreement. In order to INCREASE THE EFFICIENCY of the turbine pump (reverse pump), the decrease in the thickness of the impeller blades at different flow rates was investigated, which resulted was decrease in the amount of separation phenomenon around blades and causing increase in hydraulic quantities nearby the turbine bep point, but reducing the thickness at the flow rates very lower from bep point, didn’t have great impact at improvement of efficiency, at the bep point reducing the thickness, caused to increase 11.86 and 13.65 percent of the head and torque, and improved efficiency 1.26 percent.

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APA: Copy

TAHANI, MOJTABA, & SAREMIAN, SALMAN. (2018). INVESTIGATION EFFECT OF CHANGES GEOMETRY OF IMPELLER ON TURBINE MODE PERFORMANCE OF THE CENTRIFUGAL PUMP AT THE GOVERNING CONDITION OF THE URBAN WATER DISTRIBUTION NETWORK. MODARES MECHANICAL ENGINEERING, 18(1 ), 11-19. SID. https://sid.ir/paper/179390/en

Vancouver: Copy

TAHANI MOJTABA, SAREMIAN SALMAN. INVESTIGATION EFFECT OF CHANGES GEOMETRY OF IMPELLER ON TURBINE MODE PERFORMANCE OF THE CENTRIFUGAL PUMP AT THE GOVERNING CONDITION OF THE URBAN WATER DISTRIBUTION NETWORK. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(1 ):11-19. Available from: https://sid.ir/paper/179390/en

IEEE: Copy

MOJTABA TAHANI, and SALMAN SAREMIAN, “INVESTIGATION EFFECT OF CHANGES GEOMETRY OF IMPELLER ON TURBINE MODE PERFORMANCE OF THE CENTRIFUGAL PUMP AT THE GOVERNING CONDITION OF THE URBAN WATER DISTRIBUTION NETWORK,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 1 , pp. 11–19, 2018, [Online]. Available: https://sid.ir/paper/179390/en

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