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In a thermodynamic cycle consisting of four processes, the heat and work are as follows: Q (kJ): 30, -10, - 20, 65 W (kJ): 3, 10, - 8, 0. What will be the thermal efficiency of the cycle?
a rigid tank a of volume 0.6 m3 contains 3 kg water at 120 degrees celsius and the rigid tank b is 0.4 m3 with water at
Consider an ideal Rankine cycle with a single open feed water heater. The boiler pressure is 800 psia, and the condenser pressure is 2 psia. Steam is extracted from the turbine to heat the feed water at 90 psia. Steam enters the turbine at 1000F.
As shown in the picture, air flows through a pipe. Heat is supplied to the airflow. The air at the inlet is 200kPa and 20 C with flow velocity of 5m/s. The exiting air is 180 kPa and 40 °C. The diameter of the pipe is 0.28 m. Determine (a) the volume..
a steam power plant operates on an ideal rankine cycle with boiler pressure of 100 bar no pressure drop across the
Assuming that the bomb is perfectly insulated what is the temperature of the air in the bomb at the end of filling process? Assume air is an ideal gas with constant specific heats in a ratio Cp/Cv = γ = 1.4 and constant R= 287 J/kg K.
in a pharmaceutical plant a copper pipe kc 400 wm.k with inner diameter of 20 mm and wall thickness of 2.5 mm is used
you are handed an apple that has a mass of 102g. to get a better idea of what different pressures feel like you rig up
a pump steadily draws water at a mass flow rate at 20 lbms through a piping arrangment. at the pipe inlet the pressure
liquid water at a pressure of 1 bar is pumped to a pressure of 100 bar. during the process the temperature of the
a heat exchanger brings 9 kgs water from 250 c to 600 c at 2000 kpa using air coming in at 1300 k and leaving at 450k.
Air at 25°C and 1 atm is flowing over a long flat plate with a velocity of 8 m/s. Determine the distance from the leading edge of the plate where the flow becomes turbulent, and the thickness of the boundary layer at that location.
best buy gives a choice of 3 cpu models 2 monitors 3 printers and 2 scanners. they can operate in any combination. in
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