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A turbine with one bleeding for regenerative heating of feed water is admitted with steam having enthalpy of 3200 kJ/kg and the exhausted steam has an enthalpy of 2200 kJ/kg. The ideal regenerative feed water heater is fed with 11350 kg/h of bled steam at 3.5 bar (whose enthalpy is 2600 kJ/h). The feed water (condensate from the condenser) with an enthalpy of 134 kJ/kg is pumped to the heater. It leaves the heater dry saturated at 3.5 bar. Determine the power developed by the turbine.
calculate the amount of work input a refrigerator needs to make ice cubes out of a tray of 0.25 kg of liquid water at
Three springs and a mass are attached to a rigid, weightless bar PQ. Find the equation of motion and the natural frequency of vibration of the system.
what four processes make up the ideal otto cycle? what is happening in an actual engine during the real processes that
consider a cylindrical nickel wire 1.9 mm in diameter and 3.2 times 104 mm long. calculate its elongation when a load
a steel wide flange beam w14 x 26 carries the load. compute the maximum deflection between the supports and at each
Calculate the work done and the final temperature for the following processes: Polytropic, n = 1.1, 4.0 lbm of Air, T1 = 1300 °F, v1=6.519 ft3/lbm. The pressure decreases to half the initial pressure during the process.
a hockey player strikes the 0.25 kg puck with an impulse force given by ft 100sin50t n for the duration of 0.04pi
In the two-shield configuration of part (a), the air gaps formed by the annular concentric tubes are L = 10 mm. Calculate the heat loss per unit length if the gap dimension is L = 15 mm. Do you expect the heat loss to increase or decrease?
you are asked to design a heating system for a swimming pool that is 2 m deep 25 m long and 25 m wide. your client
What is the wear coefficient of the bearing material in m2N-1 ?
a copper vertical plate that is 0. 305 m tall and 1. 5 m wide separates two large air spaces. the air space at the left
a rankine cycle is to drive an electric generator to produce 600 mw of electricity. the generator is 95 efficient.the
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