A pump at a power plant supplies water to the boiler at a flow rate of 1,000 gal/min, measured at the pump inlet. Water enters the pump at 185 psig and 300 F. The pump discharge pressure is 2,985 psig. The isentropic efficiency of the pump is 70%. What is the required pump input power in HP? (Assume atmospheric pressure is 15 psia.) Answers: 2300 HP 1500 HP 1200 HP 2500 HP 1700 HP 2000 HP

A pump at a power plant supplies water to the boiler at a flow rate of 1,000 gal/min, measured at the pump inlet. Water enters the pump at 185 psig and 300 F. The pump discharge pressure is 2,985 psig. The isentropic efficiency of the pump is 70%. What is the required pump input power in HP? (Assume atmospheric pressure is 15 psia.) Answers: 2300 HP 1500 HP 1200 HP 2500 HP 1700 HP 2000 HP

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

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A pump at a power plant supplies water to the boiler at a flow rate of 1,000 gal/min, measured at the pump inlet. Water enters the pump at 185 psig and 300 F. The pump discharge pressure is 2,985 psig. The isentropic efficiency of the pump is 70%. What is the required pump input power in HP? (Assume atmospheric pressure is 15 psia.) 1500 HP 2500 HP 2000 HP 2300 HP 1700 HP 1200 HP
Q2/ In simple refrigeration system uses R134a, the evaporator pressure is 0.25 MPa and the condenser pressure is 1. MPa. The evaporator load is 25 TR. Determine the required work to operate the compressor motor in (a) kW, (b) hp. What is the displacement volume of the compressor if the volumetric efficiency is 80%
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Catalogue data for R-32 compressor with a displacement of 80 L/s show the capacity to be 8 tons when the suction conditions are 0.2 MPa and -20°C and condensing temperature is 50°C. The refrigerant leaves the condenser as saturated liquid. Calculate the actual volumetric efficiency and the brake work of the compressor if the compressor efficiency is 65%. By using the R-32 chart provided. Please help me! answering this problem.
6.1) A boiler produces 25 kg/s of steam at 3 MPa and 600 °C, cools the condenser with seawater so that the outlet is at 45 °C, then a reheating at 500 kPa up to 400°C is carried out, then a low-pressure expansion is carried out in the turbine. Determine: A) The net power output B) The total heat transfer in the boiler Boiler Pump www اپنا Be Turbine Condenser آلفا Ans= A) 34820 kW B) 91733 kW
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A 3-stage compressor delivers 0.23 kg/s of air. The suction pressure and temperature are 100 kPaa and 27 ̊C, respectively. The discharge pressure is 1380 kPaa. Intercooler is installed after each stage. Determine compressor work in kW. Ans. 59.07 kW
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