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A power plant with one closed FWH has a con- denser temperature of 450C, a maximum pressure of 5 MPa, and a boiler exit temperature of 900C. Extraction steam at 1 MPa to the FWH condenses and is pumped up to the 5-MPa feed water line, where all the water goes to the boiler at 200C. Find the fraction of extraction steam flow and the two specific pump work inputs.
Calculate spring coefficient k = P/δ and discuss the design on how much spring radius r should be changed to increase k two times
a liquid zone control unit has a diameter of 10 inches. the water is filled to a height of 0.5m. the thermal neutron
water at a rate of 45500 kghr is heated from 80 c to 150c in a shell-and-tube heat exchanger haveing two passes and
an iron ball is thrown into the atlantic ocean. density of iron is 7856 kgm3. density of salt water is 1020 kgm3.
air at 5 bar 500 k and a volumetric flow rate of 8 m3s enters an insulated turbine operating at steady and exits with a
two shafts whose axes are 8.5 in. apart are to be coupled together by standard spur gears with an angular velocity
a schematic must show th tc qh qc wcycle. always show the hot reservoir at the top amp cold reservoir at the bottom.
cylinder conditions at the start of compression in an si engine operating at wot on an air-standard otto cycle are 60
a rigid steel bottle v 0.25 m3 contains air at 100 kpa 300 k. the bottle is now charged with air from a line at 260 k
a 6-cm-diameter horizontal water jet having a velocity of 25 ms strikes a vertical stationary plate. the water
B) Determine the minimum amount of work [kJ ] required to reach this end state. C) If more than the minimum work is actually used, where does this extra energy go? That is what becomes of the extra energy?
A refrigerating plant operating between temprature limit of 253k and 307k provides 4.5kJ/s of refrigerating effect. If the refrigerating efficiency of the plant is 0.76. calculate the power required to drive the plant.
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