If a hydro power plant had 1000 bar pressure and 30,000 litres per minute flow.How much power could they make?

Answer 1

1000 bar = 14,500 psi
30,000 liters/min = 7925 gallons /min

To calculate brake horsepower:

BHP = gpm x pressure head in psi x specific gravity/1714 x efficiency

BHP = 7925 x 14,500 x 1/1714 x 0.85

BHP = 189,343

This would be the brake horsepower required to pump 30,000 liters of water at a pressure of 1000 bar, assuming a pump/motor efficiency of 85%

Answer 2

sounds like Bernoulli's law of energy for this one, i think you still need the pressure and flow AFTER the power is generated to correctly answer this question.