THERMODYNAMICSUPVOTE WILL BE GIVEN. PLEASE WRITE THE COMPLETE SOLUTIONS LEGIBLY. SHOW THE STEP-BY-STEP PROCESS WITH SHORT COMMENT/EXPLANATION. ANSWER IN 4 DECIMAL PLACE The pump of a water distribution system is poweredby a 15-kW electric motor whose efficiency is 90 percent.300 kPaPumpWaterO100 kPa50 L/spump"motor- 90%Motor15 kWThe water flow rate through the pump is 50 L/s. The diame-ters of the inlet and outlet pipes are the same, and the eleva-tion difference across the pump is negligible. If the pressuresat the inlet and outlet of the pump are measured to be 100kPa and 300 kPa (absolute), respectively, determine themechanical efficiency of the pump.

Answered: Image /qna-images/answer/59315cf3-2198-4d6c-82ca-7860efd9dbf6.jpg

The pump of a water distribution system is powered by a 15-kW electric motor whose efficiency is 90 percent. 300 kPa Pump Water 0 100 kPa 50 L/s "motor = 90% Motor 15 kW 194 Wpump The water flow rate through the pump is 50 L/s. The diame- ters of the inlet and outlet pipes are the same, and the eleva- tion difference across the pump is negligible. If the pressures at the inlet and outlet of the pump are measured to be 100 kPa and 300 kPa (absolute), respectively, determine the mechanical efficiency of the pump.

The pump of a water distribution system is powered by a 15-kW electric motor whose efficiency is 90 percent. 300 kPa Pump Water 0 100 kPa 50 L/s "motor = 90% Motor 15 kW 194 Wpump The water flow rate through the pump is 50 L/s. The diame- ters of the inlet and outlet pipes are the same, and the eleva- tion difference across the pump is negligible. If the pressures at the inlet and outlet of the pump are measured to be 100 kPa and 300 kPa (absolute), respectively, determine the mechanical efficiency of the pump.

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.

See similar textbooks

Similar questions

a hydraulic turbine receives water froma reservor at an elevation of 100 meter above it. what is the minimum water flow in (kg/sce) to produce a steady turbine output of 50 mw?
A pump with an efficiency of 15mm% is used to pump water from a tank (stationary water inside) at theground to an open swimming pool (atmospheric pressure) at the top of a residence, where surface of theswimming pool has an elevation of 35m. The pressure in the tank in the ground is measured to be 150 kPaabsolute. The electric consumption of the pump is measured to be 1kW. What is the mass flow rate of thepump?Write the general first law of thermodynamics for an open system between two points, reduce it to steadystate mechanical energy equation for incompressible flows (like water). Take atmospheric pressure to be 100kPa absolute
The power developed by the pump is 30kw. What is the percent decrease in power if speed will decrease by 40%. ANSWER: 78.4%
A simple saturated refrigeration R-12 system operates at an evaporating temperature of -11 °C and a condensing temperature of 40 °C. Determine the volume flow in m3/sec rate for a refrigerant capacity of 1 kW.
A pump discharges 50 tons of water per hour to a height of 8 m, overall efficiency of the pumping system being 69%, what is the input and output power?
An air compressor has a suction volume of 0.35 cubic meter/sec at 28 deg. C and 101.325 Kpa and discharges 700 kpa. Determine the amount of power saved by the compressor in two staging?
A large water pump takes water from a nearby lake at a rate of 35 f/Sec and rauses its pressure from 7 to 100 psia, with a negligiblymall change in the speific ntermal energy iand the density, So that if can be fed into an rngahon Systemo if the pump isG adiabatic and frictionless, delermine the magnitude of the power necessary to drive the pump in hp using 5 signifigant figures. Hint: you need to use an equation for h.
A hydraulic vane pump running at 1800 rpm develops 2 L/s flow at 750 kPa. Volumetric efficiency is .85 and overall efficiency is 0.8. Determine the Mechanical Efficiency, nm. O 0.975 O 0.80 O 0.941 O 0.85 O 1.06
A pump with an overall efficiency of 60% is pumping an acid (p= 1800kg/m3) from an open tank (atmospheric pressure) to a reactor unit at the rate of (8 square root 8) kg/s. This unit operates at 8000 Pa gauge and the acid is discharged into it with a velocity of 0.24 m/s at a point 6m above the acid surface level in the tank. Determine the power required (kW) to run the pump if the sum of the major and minor energy losses are equivalent to 3m of H2O head.
600 kg/min. Of feedwater is drawn by the pump at 0.016mpa and is delivered at 12mpa. What is the pumpwork in KW? If the pump motor efficiency is 80%. What is the power input to the motor?
Q1: Find the pump efficiency if the pressure difference across the pump is 230 kPa. If the outlet 2₁ 14 cm Z2 diameter of the pump is 7 cm, the inlet diameter is twice the outlet diameter. take the mass flow = 50 rate of the pump is equal to 50 kg/s 72. 1 Wate C the pump nmotor = 85 % Motor 20 W
A centrifugal pump operating under steady flow conditions delivers 2275 kg/min of water from aninitial pressure of 82730 Pa to a final pressure of 275850 Pa. The diameter of the inlet pipe to thepump is 15.45 cm and the diameter of the discharge pipe is 10.18cm. What is the work in kW?