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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%]
You have a centrifugal pump with an inlet radius of 200mm, an inlet blade width of 60mm, and inlet blade angle of 50 degrees. The outlet radius is 600mm, outlet blade width is 40mm and the outlet blade angle is 70 degrees. The pump handles water and ..
a rectangular gate of 1m wide is hinged at its top edge shown as bellow. there is water at the right hand side of gate
Determine its Fourier series expansion and illustrate graphically for -3l t 3l.
a wind turbine with a swept area of 1000 m2 operates with 56 efficiency under stp conditions. at the location of the
air flows through a convergent-divergent nozzle from a large reservoir in which the pressure and temperature are
A brittle cast iron (E = 15 Msi, ? = 0.2, Sut = 30 ksi, Suc = 100 ksi) hub is shrink-fit onto a solid carbon steel shaft. The hub has initial inner and outer diameters of 3.000 and 6.000 inches respectively. What is the largest diameter the steel sha..
a solution is poured into a conical filter of base radius 12m and vertical height 15 m at a uniform rate of 8.4 m3s and
question a person of weight 100 kg standing on skis 2 m long and 0.10 in wide slides on the 2deg mountain slope at
the acceleration of a particle is defind by the relation a - 0.8 v where a is expressed in ms2 and v ms. knowing
Calculate the corrosion rate in mpy, pm/y, and mdd. What is the ranking of this carbon steel in this acid environment and determine the effect of time on the solution corrosiveness and the carbon steel corrodibility.
a long cylinder pressure vessel with closed ends has an internal pressure of 3 mpa. calculate the hoop stress sigma
An ideal gas contained in a cylinder with a volume of 500m3 is at a pressure of 400Kpa and a temperature of 70 ?C . Pressure in the cylinder is dropped to 200KPa by releasing some gas. If the expansion process of the cylinder is isentropic, find the ..
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