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Consider an adiabatic mixing chamber operating at steady state into which steam enters with quality of 0.9. Water enters through a separate inlet at 30 C. At the exit the temperature is 150 C and mass flow rate is 2 kg/s. The pressure in the mixing chamber is 800 kPa. Determine the entropy production for the mixing process, in kW/K.
point a of circular disk with radius of 200 mm is at angular postion theta 0 at t0. the disk has angular velocity of
a heat pump has a coefficient of performance of 2 using a power input of 2 kw. its low temperature is to and the high
1. consider a conical pendulum that is a ball of mass m at the end of a string of length li moving in a horizontal
find max stress sigmatheta. the cylinder is hollow in the center one layer of steel inside and a layer of brass
steam at 5 bar 320 c enters a steady state turbine with a volumetric flow rate of 0.65m3s and evpands adiabatically to
a 1500 lb crate is pulled along the around at a constant speed for a distance of 25ft using a cable that makes an andle
On the alien planet, there are 2.916 goobs in a second. There are 1.222 liters per mabbox. If one of the alien engineers measured 16 mabbox per goob, how many liters per second is it?
ater enters a reversible steady-state device at 125degc and 400 kpa and leaves at 300degc and 200 kpa. heat is added
a power generator burns natural gas consisting of 30 ethane 60 methane and the balance nitrogen. the gas undergoes
A component in the shape of a large rectangular sheet is made from AL-7075-T651. It carries uniform axial stress that may reach up to 50% of its yield strength. Assuming worst case scenario, what is the largest edge crack that can be allowed?
A turbojet aircraft flies with a velocity of 900 km/h at an altitude where the air temperature and pressure are -35 degrees C and 40 kPa. Air leaves the diffuser at 50kPa with a velocity of 15 m/s, and combustion gases enter the turbine at 450 kPa an..
Water enters a hydraulic turbine through a 30-cm-dia pipe. The pressure drop in the turbine is measured by a mercury manometer to be 1.2 m. For a combined turbine-generator efficiency of 83%, determine the net electric output. Disregard the effect..
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