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Steam at 2 kg /s enters a turbine at 6000 kPa and 600 C and exits as saturated vapor at 20 kPa. The turbine produces 2000 kW of shaft work. If the surroundings are at 30 C and the flow is steady, find (a) the rate of heat transfer from the turbine (b) the rate of entropy production by the steam.
a heat engine in each cycle absorbs energy from a reservoir as heat and does an equivalent amount of work with no other
A cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.
the wall of a heat exchanger receives a variable heat flux as shown in the figure. the heat flux is q dot of second
Electricity might be used to run the fan to draw air through the system, and also to run a chiller - What is a typical COP for a commercial chiller?
coming out of a factory chimney are the following gases co2 so2 o2 n2 h2o with volume percentage to be 13.5 0.3 5.2 76
the man pulls the boy up to the tree limb by walking backward. if he starts from rest when 0 and moves backward with a
a closed rigid tank contains 5 lbm of a two phase mixture of water initially at 260degf with a quality of 0.6. heat
what were the flaws in your experiment? what sort of reproducibility does your experimental procedure yield? 4. how
ten kilograms of water at saturated liquid phase fills in a piston-cylinder device volume can change at 50oc. the
Determine the mass flow rate of the air passing through this engine and the rates of heat addition and rejection when this engine produces 1000 hp. Assume constant specific heats at room temperature.
an ideal brayton cycle has reheat between the first and second staged turbines and regeneration following the second
what would be the effect on the calculated value of the vane efficiency for mass of jockey in error by 0.001 measurements.
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