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Steam at 10 MPA, 600 C, enters a well insulated turbine operating at steady state and exits at 0.1 bar and a quality of 92%. The volumetric flow rate at the inlet is 0.36 m^3/s. Assuming the kinetic and potential energy effects to be negligible, determine A) the mass flow rate in kg/s B) the temperature at the exit of the turbine, in C C) the power developed by the turbine in kW D) the isentropic turbine efficiency E) the entropy at the exit of the turbine, in kJ/kg K F) the rate of entropy production within the turbine, in kW/K
A flow has circular streamlines. At t=0 the flow is in the clockwise direction and the angular velocity is pi rad/s. This flow exists for 1 s, and then reverses to counterclockwise with an angular velocity of -pi rad/s for 1 s.
If the channel is overtopped for 2 years in a row, renovation cost will increase too much. What is the probability that the channel will be overtopped for only 2 years in a row in a 4 year period
The specification for a particular application calls for the blocks to have a mean compressive strength greater than 1350 kPa. A sample of 100 blocks is produced and tested.
determine the horizontal spacing of the vertical drains if the drains are installed in triangular grid to reach 90% of primary consolidation in 1.5 years after the commencement of fill placement
The pollutant has a reaction rate coeeficient k of 0.25/day. Assuming is pollutant is well mixed in the lake, find the steady-state concentration of pollutant in the lake.
Determine the mass flowrate through boiler needed to produce 5000KW of power.
A hurricane has an average rainfall depth of 9in over a 200-mi^2 watershed. What is the size of the reservoir needed to contain 20% of the rain completely.
The temperature when the tires were in flated was 25 F. Assuming no change in air mass or volume, what is the temperature (F) in the tire after driving yesterday is a pressure on 44 psig was measured
The velocity of propagation, c of surface waves is assumed to depend on the water depth, y, the water density, and the acceleration due to gravity, g. Express these variables as a dimensionless group.
A 10cm long cylindrical rod of steel is elongated to become 12.1cm long by the application of a force of 10kN. 1- What is the ration of initial diameter to final diameter, assuming no net volume change
Compute the detention time and horizontal flow through velocity. Do these values satisfy the standards for water works, which stipulate detention time is greater and equal to 30 min and 0.5 ft/min =
A bicycle rider would like to compare the effectiveness of candilever hand brakes (use figure a) versus V brakes (figure part b). (a) Calculate the braking force Rb at the wheel rim for each of the bicycle brake systems.
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