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what is the difference between forebay and surgetank in
case of hydro electric power plant
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Answer Posted / abhishek dhananjay shinde
Forebay is put immediately after reservoir which is followed by gate,penstock,& surge tank respectively.Though basic function i.e regulation of pressure & velocity of water is the same, forebay is directly associated with reservoir & its water level; whereas surge tank is associated with gate & turbine load directly.Forebay prevents overflowing or drying of reservoir temporarily whereas surge tank continuously regulate pressure & velocity of water just before the entry in turbine thus preventing water hammerings.
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