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1. Water is the working fluid in an ideal Rankine cycle. The condenser pressure is 6 kPa, and saturated vapor enters the turbine at 10 MPa. Determine the heat transfer rates, in kJ per kg of steam flowing, for the working fluid passing through the boiler and condenser and calculate the thermal efficiency.
2. Water is the working fluid in an ideal Rankine cycle. Superheated vapor enters the turbine at 10 MPa, 4808C, and the condenser pressure is 6 kPa. Determine for the cycle
(a) the rate of heat transfer to the working fluid passing through the steam generator, in kJ per kg of steam flowing.
(b) the thermal efficiency.
(c) the rate of heat transfer from the working fluid passing through the condenser to the cooling water, in kJ per kg of steam flowing.
A mixture of air and water at a temperature of 30ºC and a pressure of 750 mmHg has a relative humidity of 75%. The wet gas is compressed to 40 psia and cooled to 20ºC. How many cubic meters of original gas were compressed if 0.75 lb of condensate (wa..
given temperature of the hot loop tin36.70c tout73.738c hot flow 2.985 galmin temperatures of the cold loop tin 14.42c
a.calculate the angular velocity and angular acceleration of a 2kg mass rotating in a horizontal circle of 2m radius if
Write the combustion equation for the complete combustion of methane in a furnace chamber with 200% theoretical air and 20% percent excess air. Take into account that some of the oxygen is lost to the surface wall material of the furnace. Find the ..
In a chemical plant liquid ammonia is stored in a large tank at 72 degrees F and 200 psig. Ammonia is pumped from this tank to a smaller tank for chemical process usage. The pump used to supply ammonia to the process tank is located 12 ft above the s..
the hot and cold inlet temperatures to a concentric tube heat exchanger are thi 200degc tci 100degc respectively.
estimate the drag of a thin square plate 3m by 4m when it is towed through water 10 oc. assume a towing speed of about
Two lead lumps attract each other gravitationally with force F. Now you double the mass of one lump, halve the mass of the other lump, and double the separation between them. What is the magnitude of the new gravitational force between them?
h2o enters a well-insulated nozzle operation at 1000of 500 psi and a velocity of 10 fts. at the nozzle exit the
the itaipu hydroelectric power plant has a rated generation capacity of 14000 mwe. there are 20 turbine-generators to
Air initially at 290 K, 1 bar undergoes the following processes: polytropic compression to 5 bar with n = 1.19 and isentropic expansion to 1 bar. Sketch the processes on a T-s diagram, Determine the temperature of state 2 and
a 0.2 m3 rigid tank initially contains refrigerant 134a at 1 mpa saturated vapor. the tank is connected to a supply
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