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A well insulated piston cylinder device containing 3 lbm of water is compressed using 601 kJ of energy. Initially the water is at 40 psia and 280 F. After the compression process, the pressure in the cylinder is 250 psia. Determine the amoung of entropy generated during the process.
What is the velocity and rate of flow of the metal into the mold? Is the flow turbulent or laminar? (Pure aluminum density ρ = 2.7 g/cm3).
a fossil-fuel steam power plant operates at about 50 of carnot thermal efficiency. it has been suggested that the air
A gasoline engine is modeled as an Otto cycle. It has at temperature and pressure at the beginning of compression of 10°C and 90 kPa. The compression ratio is 7 and the specific energy added to the air during the heat addition process is 1432.46 ..
prepare the project objectives based on the requirement out lined at the next page.the following is the project
a thermoelectric device cools a small refrigerator and discards heat to the surroundings at 25c. the maximum electric
the 10-kg mass a is moving at 5 ms when it is 1 m from the stsaionary 10 kg mass b. the coefficiient of kinetic
refrigerant 134a at a pressure of 0.8 mpa and a temperature of 50 c undergoes a process until the pressure is 0.1 mpa
q1. 1.5 kg of oxygen n2 and 0.15 kg of helium he2 are separated by a partition in a vessel.nbsp the nitrogen is at 5
a heat engine absorbes 25 mw from a 400 c combustion chamber and rejects 15 mw to the atmosphere at 30 c. find the
a power cycle operates between a high temperature reservoir at th k and a low temperature reservoir at tc 280 k. at
1 use boltzmann distribution to mathematically show that a two level laser system is not possible. calculate the ratio
two 415000-lb locomotives pull 41 205000-lb coal hoppers. the train starts from rest and accelerates uniformly to a
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