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Air enters a steady-flow compressor with a specific enthalpy of 293.4 kJ/kg and a velocity of 60m/s, and leaves with a specific enthalpy of 343 kJ/kg and a velocity of 120m/s. The mass flow rate of the air is 1kg/s, and the heat transfer rate from the air to the surroundings is 19kJ/s. Calculate the power required to drive the compressor. Assume the change of potential energy is negligible.
the local atmospheric pressure is 99.0kpa. a gage on an oxygen tank reads a pressure of 300 kpa gage. what is the
a gas-turbine power plant operates on the simple brayton cycle between the pressure limits of 100 and 800 kpa. air
it is observed that the time for the ball to strike the ground at b is 2.5 s. determine the speed va and angle ua at
Water enters a 2 meter diameter pipe at a temperature of 23 deg C. The water leaves the pipe at a temperature of 97 deg C The laminar flow rate is such that the Reynolds number is 800. What is the mass flow rate?
Design the number of teeth and depth of teeth need be chosen. Considerations include the turn angle for each stroke, the bearing stress on the teeth and pins and shear stress on the teeth.
The 25-kg bar has a centre of mass at G.If it is supported by a smooth peg at C,a roller at A and cord AB, determine the reactions at these supports.
determine the heat transfer per kg necessary to raise the temperature of a closed rigid tank of saturated water vapor
determine the velocity of on the outer rim of the spool at the instant shown when the cable is pulled to the right with
air enters a compressor at ambient conditions of 100kpa and 17 degc with a low velocity and exits at 1mpa 327 degc and
i need you to write a report about heat treatment of steel. i will attach the report format which you need to stick
Both cars undergo constant acceleration. Determine the time when the two cars pass each other on the highway.
an ideal gas undergoes a thermodynamic cycle consisting of three processesprocess 1-2 isothermal compression from p1
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