Compute thermal efficiency if condenser operates at pressure
The inlet to a boiler of a Carnot power cycle is at 5 Mpa, saturated liquid, and the exit is saturated vapor. The condenser operates at 1 bar. Determine the thermal efficiency.
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A sinusoidal voltage E=200sin314t is applied to a resistor of 10 ohm resistance. Calculate power diddipated as heat in watt.
What is the speed of the object at the instant when the spring is stretched by 0.042 m relative to its unstrained length?
If the final pressure is 1 bar, determine the specific enthalpy if the turbine is isentropic. b) Determine the final specific enthalpy using part a) information, except that the isentropic efficiency of the turbine is 0.9.
Two stretched cables both experience the same stress. The first cable has a radius of 3.1x10-3 m, and is subject to a stretching force of 230 N. The radius of the second cable is 4.6 x 10-3 m. Determine the stretching force on the second cable.
A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.70 x 105 Pa.
Air at 1 bar and 20 degrees C is compressed isentropically to 20 bar pressure. For both a) and b) assume that air is an ideal gas. Calculate the fianl temperature if the specific heat is variable.
Draw the vector starting at the black dot. The location and orientation of the vector will be graded. The length of the vector will not be graded.
Steam at 3 Mpa, 500C, enters an insulated turbine operating at steady state and exits at 0.3 Mpa. Determine the maximum power (rate of work) developed in kW/kg.
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