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Consider ideal Rankine cycle with reheat. At the inlet of the turbine steam enters at pressure of 10 MPa and turbine inlet temperature of 460°C. The pressure in the condenser is 8 kPa. The exit pressure in the first stage turbine is 0.7 MPa and it is reheated to temperature 460°C. Find the following values for the cycle:
(a) Draw T-s diagram of the cycle
(b) Enthalpy at different state points
(c) The rate of heat addition in kJ/kg
(d) The thermal efficiency of the cycle
What is the mass flow rate of oxygen in lbm/s? Note that the inside diameter of a nominal 2 inch schedule 40 steel pipe is 2.067inches. Assume ideal gas principles apply.
a petrol engine uses 204 kg of petrolh of calorific value 43 mjkg. the thermal efficiency of the engine is 20.
The cylinder of mass m and radius r rolls without slipping on the circular surface of radius p. Attached to the cylinder is a small body of mass m/4. Determine the maximum value of p for which the body is stable in the equilibrium position shown.
calculate the force required in direct extrusion of 1100-o aluminum from a diameternbspof 6 in. to 2 in. assume that
In a laboratory test on a clay sample it has been forgotten to measure the deformation immediately after the application of the load. The measurement after 1 minute was a deformation of 0.06 mm, and after 4 minutes a deformation of 0.08 mm. Estima..
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a gas turbine engine has a pressure ratio of 9.2 to 1 and operates on an ideal brayton cycle. assume air enters at 25 c
A mass-damper-spring system of the type shown in Fig. has been observed to achieve a peak magnification factor Q = 5 at the driving frequency co = 10 rad/s.
The power input to the compressor is 100 kW. A separate liquid cooling water stream flows through the heat exchanger. All data are for operation at steady state. Stray heat transfer with the surroundings can be neglected, as can all kinetic and po..
Two bars AC and BC are connected by pins to form a structure for supporting a vertical load P at C (Figure P3.5). Determine the angle a if the structure is to be of minimum weight.
Determine (a) the velocity of the air at the duct inlet and (b) the temperature of the air at the exit.
The inverted T-beam supports three concentrated loads as shown in the figure. Find the maximum allowable value of P if the bending stresses are not to exceed 3.5 ksi in tension and 8 ksi in compression.
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