TeachMeFinance.com - explain Gross head
Gross head The term 'Gross head' as it applies to the area of energy can be defined as ' A dam's maximum allowed vertical distance between the upstream's surface water (headwater) forebay elevation and the downstream's surface water (tailwater) elevation at the tail-race for reaction wheel dams or the elevation of the jet at impulse wheel dams during specified operation and water conditions'.
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