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Determine the total exergy destruction of a Brayton cycle with a source temperature of 1800K and a sink temperature of 310K. Pressure ratio is 7, compressor efficiency is 75%, turbine efficiency is 82%, and regenerator effectiveness is 65%, also determine the exergy of the regenerator exhaust gasses.
steam flows steadily through an adiabatic turbine. the inlet conditions of the steam are 10 mpa 450 c and 80 ms and the
the molar heat capacity of liquid iron exceeds that of iron vapor by 2.5222calkthe molar heat of evaporation of liquid
water is pumped from a lake to a storage tank 20m above at a rate of 70ls while consuming 20.4kw of electrical power.
a 1 m3 tank containing air at 25oc and 500 kpa is connected through a valve to another tank containing 5 kg of air at
an electric generator provides 500 kw and is powered by a diesel engine with a compression ratio of 19 and a cutoff
a long wire of diameter d 1 mm is submerged in an oil bath of temperature tinfin 25 c. the wire has an electrical
gaseous hydrogen at 10 bars and 27c is stored in a 100-mm-diameter spherical tank having a steel wall 2mm thick. the
The catapult is used to launch a ball such that it strikes the wall of the building at the maximum height of its trajectory. If it takes 1.5 s to travel from A to B, determine the velocity vA at which it was launched, the angle of release q, and t..
compressive centric forces of 160 kn are applied at both ends of the assembly shown by means of rigid plates. knowing
a piston-cylinder with a volume of 0.5 m3 holds 1 kg of nitrogen at a temperature of 261 k. heat transfer to the
a rigid tank 0.4 m3 contains air at 400 kpa and 30c and is connected by a valve to a piston-cylinder device with zero
if you are standing in a room that is held at a constant 75 f and your body temperature remains at a constant 98.6 f
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