Methane gas, whose volumetric flow rate is measured as 50 m/s at 300 K and 101.3 kPa absolute pressure, is compressed to 550 kPa in a compressor and sent to a 4 km long pipe with a diameter of 500 mm at the same temperature. The friction factor in the pipe is 0.002. Methane gas is discharged from the pipe at the same temperature. Find the work done by the compressor in kW. MMethane=16

Methane gas, whose volumetric flow rate is measured as 50 m/s at 300 K and 101.3 kPa absolute pressure, is compressed to 550 kPa in a compressor and sent to a 4 km long pipe with a diameter of 500 mm at the same temperature. The friction factor in the pipe is 0.002. Methane gas is discharged from the pipe at the same temperature. Find the work done by the compressor in kW. MMethane=16

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A pump is to deliver water at a head of 40 m, the water temperature being 38oC and barometric pressure is 760 mm Hg. At intake, the pressure is 432 mm Hg and the velocity is 3.50 m/s. Determine the NPSHA.
Water vapor enters a Lule with an input cross-sectional area of 0.02 m2 at a temperature of 1.8 MPa and 400C. Water vapor passes through the Lule with a flow of 5 kg/s, and in this process there is a heat loss of 2.8 kJ / kg from the Lule. If the pressure at the outlet is 1.4 MPa and the speed is 275 M/s, find the speed at which the water vapor enters the Lule and the temperature at the outlet of the Lule.
Air enters a compressor at a temperature of 100 kPa and 25°C and leaves the compressor at a temperature of 277°C and a speed of 75 m/s.1350 kj/min heat loss occurs from the compressor to the ambient environment. Since the power required for the compressor is 210 kW, determine the compressor's flow rate.(Note: the potential energy change is negligible.)
Water is flowing in a pipe that changes diameter from 20 to 40 mm. If inlet velocity is 40 m/s, determine the outlet velocity and the mass flux (mass flow rate)
The compressed air requirements of a manufacturing facility are met by a 120-hp compressor that draws in air from the outside through an 9-m-long, 22-cm-diameter duct made of thin galvanized iron sheets. The compressor takes in air at a rate of 0.27 m3/s at the outdoor conditions of 15°C and 95 kPa. Disregarding any minor losses, determine the useful power used by the compressor to overcome the frictional losses in this duct.
Air at 110 kPa and 35°C flows upward through a 6-cm-diameter inclined duct at a rate of 65 L/s. The duct diameter is then reduced to 4 cm through a reducer. The pressure change across the reducer is measured by a water manometer. The elevation difference between the two points on the pipe where the two arms of the manometer are attached is 0.20 m. Determine the differential height between the fluid levels of the two arms of the manometer.
Air at a temperature of 25∘C∘C and standard atmospheric pressure of 101.3 kPakPa flows through the nozzle into the pipe where the absolute internal pressure is 85 kPakPa . The nozzle has a throat diameter of d� = 30 mmmm . Gas constant for air is R� = 286.9 J/[kg⋅K]J/[kg⋅K] and its specific heat ratio is k� = 1.40. (Figure 1) Determine the mass flow into the pipe. Express your answer using three significant figures.
The water vapor is throttled by an insulated valve from 6 MPa pressure and 400oC temperature to 2 MPa pressure in continuous flow. Calculate the exit temperature of the water vapor.
At the inlet to a certain nozzle the enthalpy of the fluid is 3025 kJ/kg and the velocity is 60 m/s. At the exit from the nozzle the enthalpy is 2790 kJ/kg. The nozzle is horizontal and there is negligible heat loss from it. i) Find the velocity at the nozzle exit. ii) If the inlet area is 0.10 m2 and specific volume at inlet is 0.19 m3/kg. Determine the exit fluid density (kg/m3) if thea area at the exit is one-tenth of the area at the inlet
Air at 105 kPa and 37° C flows upward through a 6-cm-diameter inclined duct at a rate of 65 L/s. The duct diameter is then reduced to 4 cm through a reducer. The pressure change across the reducer is measured by a water manometer. The elevation difference between the two points on the pipe where the two arms of the manometer are attached is 0.20 m. Determine the differential height between the fluid levels of the two arms of the manometer.
The static and stagnation pressures of a fluid in a pipe are measured by a piezometer and a pitot tube to be 200 kPa and 220 kPa, respectively. If the density of the fluid is 600 kg/m^3, the velocity (in m/s) of the fluid is ?"
Air flows through a long duct of constant area at 0.15 kg/s. A short section of the duct is cooled by liquid nitrogen that surrounds the duct. The rate of heat loss in this section is 15.0 kJ/s from the air. The absolute pressure, temperature, and velocity entering the cooled section are 188 kPa, 440 K, and 210 m/s, respectively. At the outlet, the absolute pressure and temperature are 213 kPa and 351 K. Compute the duct cross-sectional area and the changes in enthalpy, internal energy, and entropy for this flow. Take C=1 KJ/KgK, C,-0.717 KJ/Kg.K