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A regenerative steam power cycle has a closed feedwater heater that heats 20 kg/s of water from 100°C, 20 MPa to 250°C, 20 MPa. The extraction steam from the turbine enters the heater at 4 MPa, 275°C, and leaves as saturated liquid. What is the required mass flow of the extraction steam (kg/s)?
while at the county fair you decide to ride the ferris wheel. having eaten too many candy apples and elephant ears you
determine the specific volume of superheated nitrogen gas at an absolute pressure of 678 kpa and -134degc based on a
steam is expanded in an adiabatic turbine from a single inlet to a single oulet during an internally reversible
a closed system contains 2-kg of air undergoes an isothermal process from 600 kpa and 200oc to 80 kpa. determine the
Air at the rate of 18 kg/s is drawn into the compressor of a jet engine at 55 kPa and -23oC and is compressed reversibly and adiabatically to 276 kPa. Determine the required power input to the compressor expressed in horsepower.
a large stationary brayton cycle gas-turbine power plant delivers a power output of 100000 hp to an electric generator.
a car and its suspension system are idealized as a damped spring-mass system with natural frequency 0.5hz and damping
the system shown starts from rest and each component moves with a constant acceleration. if the relative acceleration
a gas contained within a piston-cylinder assembly undergoes three processes in series process 1-2 constant volume from
an aircraft flying at 10000 feet uses a pitot-static tube to measure speed. the instrumentation on the aircraft
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
a 1 hp electric motor drives a water pump. the pump volumetric flow rate is 2103 m3s at 300 k.a determine the head loss
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