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A steam turbine operates on a superheated Rankine cycle. The pressure and temperature of the steam leaving the boiler are 10 bar and 350 °C respectively. The specific steam consumption of the plant is 4.55 kg/kWh. The pressure in the condenser is 0.05 bar. If the feed pump work may be neglected, calculate the thermal efficiency of the plant, the turbine isentropic efficiency and evaluate the rational efficiency. Also calculate the mean temperature of reception of heat in the boiler and use this in conjunction with the condenser temperature to evaluate the thermal efficiency. Explain why the value calculated by this method is higher than that obtained previously.[26.5%; 86%; 84.84%; 30.85%]
A simply supported beam is carrying a distributed and point load as are shown in the figure. Find the beam dimension a such that the normal stress in the beam does not exceed 2 MPa
during a certain movie on cavitation dr. kavi tae shun held in his hand a closed cylinder filled with water and air. he
a fluid speficic weight 60 lbft3 flows upward at an inclination of 30 degrees above the horizontal. if the flow is at
One kilogram of air in a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes: Process 1-2: Constant specific volume At state 1, the temperature is 323 K, and the pressure is 1 bar. At state 2, the pressure is 2 bar...
Knowing that the bracket AB has a uniform thickness of 5/8 in., determine the principal planes and principal stresses at point H.
You have been tasked to design a new shell-and-tube heat exchanger for the chemical plant in which you work. The heat exchanger will utilize cooling water to cool Syltherm 800 (a heat transfer ?uid)
a cord is wound in the slot of cylinder a. mass b moves downward with a velocity of 6 m. assume no slipping of the
a soil sample has a total unit weight of 16.97 knm3 and a void ratio of 0.84. the specific gravity of solids is 2.70.
A bar specimen having a square cross section of edge length c is subjected to a uniaxial tensile force F, as shown in the fol- lowing figure. Derive strength and stiffness performance index expressions analogous to Equations 22.9 and 22.11 for thi..
a geothermal power plant uses geothermal water extracted at 160oc at a rate of 440 kgs as the heat source and produces
a cold storage room has walls made of 0.23 m of brick on the outside 0.08 m of plastic foam and finally 1.5 cm of wood
1 a pebble of mass 0.50gm is stuck on the wheel of bicycle marking a spot on the tire. when the pebble reaches the apex
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