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25 Superheated steam at 20 MPa, 560 degree C enters the turbine of a vapor power plant. The pressure at the exit of the turbine is 0.5 bar, and liquid leaves the condenser at 0.4 bar at 75 degree C. The pressure is increased to 20.1 MPa across the pump. The turbine and pump have isentropic efficiencies of 81 and 85%, respectively. Cooling water enters the condenser at 20 degree C with a mass flow rate of 70.7 kg/s and exits the condenser at 38 degree C. For the cycle, determine (a) the mass flow rate of steam, in kg/s. (b) the thermal efficiency.
you borrow 10000 from a bank at annual rate of 10 compounded monthly which needs to be repaid in 36 equal monthly
2. What is the design objective? -to minimize the required power input to the compressors 3. What parameters does the design engineer control?
a lap joint needs to be designed using 20-mm diameter bolts to carry a load of 120 kn on the connecting plates. if the
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No heat interactions with the environment are allowed. You do not need to describe the details of the process that produces the maximum work, but you do need to describe the final state of the blocks fully.
a material element experiences 50 mpa compression in the x-direction 10 mpa tension in the y-direction and a negative
When a compressed gas storage tank fails, the resultant explosion occurs so rapidly that the gas cloud can be considered adiabatic and assumed to not mix appreciably with the surrounding atmosphere.
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if the turbine inlet pressure in a rankine cycle is 5mpa and the inlet temperature is 350c determine the efficiency of
a rankine-cycle steam power plant operates at a boiler pressure of 5 mpa and a condenser pressure of 0.01 mpa. the
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