Find the plant-s thermal efficiency
A utility plant runs an ideal Rankine cycle with water. The boiler pressure is 3.0 MPa and the cycle has a high temperature of 450 °C and its low temperature is 45 °C. Find the plant's thermal efficiency.
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It is a peculiarity of an ideal gas that its internal energy is a function of only temperature. What is the net energy transfer as heat for the process described?
Aluminum-copper alloy(96 atom% Al; 4 atom% Cu) is solution-annealed at 550C and then aged at 450C. Calcuate the time required to grow the precipitate half-thickness from X=0 to x=1E-6m.
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Consider a gas-turbine power plant whose pressure ratio is 8. The Isentropic efficiencies of the compressor and the turbine are 80%, and there is a regenerator with effectiveness 0f 70%.
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If the initial temperature of the pin is 800 degrees C determine the initial rate of change of energy storage of the pin.
The ice cap at the north pole may be 1000 m think, with a density of 920 kg/m^3. Find the pressure at the bottom and the corresponding melting temperature.
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