What is the temperature at the exit of the pump

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Reference no: EM131156545

Problem 6.23:

Water is pumped at a flow rate of 2.25 kg/min from 1 bar 20 °C to 15 bar. Determine the amount of work and the temperature of water at the exit if the efficiency of the pump is 78%.

Problem 6.24:

A 10 kW pump is used to pump liquid ammonia from 5 bar and 0 °C to 25 bar. The efficiency of the pump is 62%.

a) What is the mass flow rate (kg/s) delivered by the pump?

b) What is the temperature at the exit of the pump?

c) Calculate the rate of entropy generation (in kW/K).

Additional data for liquid ammonia: density = 0.64 g/cm3; CP = 1.1 kJ/kg K; β = 2.095 × 10-3 K-1.

Reference no: EM131156545

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