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a cogenerating steam power plant as in fig 919 operates with a boiler output of 25 kgs steam at 7 mpa 500c the
1 a steam power plant has 4 mpa 500c into the turbine and to have the condenser itself deliver the process heat it is
find the entropy generation per unit mass leaving the open fwh in problem 940problem 940an open fwh receives steam at 1
1 a steam power plant operates with a high pressure of 4 mpa and has a boiler exit of 600c receiving heat from a 750c
repeat problem 943 assuming the turbine has an isentropic efficiency of 85problem 943a steam power plant has high and
consider the power plant in problem 941 assume that the high temperature source is a flow of liquid water at 120c into
1 do the previous problem with ammonia as the working fluid2 a concentrated solar power plant receives the energy from
steam enters the turbine of a power plant at 5 mpa 400c and exhausts to the condenser at 10 kpa the turbine produces a
for the steam power plant described in problem 913 assume the isentropic efficiencies of the turbine and pump are 85
1 a steam power cycle has a high pressure of 30 mpa and a condenser exit temperature of 45c the turbine efficiency is
assume a variation of the cycle in problem 949 with a closed fwh at 08 mpa and one open fwh at 100 kpa a pump is used
a smaller power plant produces 25 kgs steam at 3 mpa 600c in the boiler it cools the condenser to an exit temperature
notice that the configuration in fig 929 has the left-hand side column of devices substitute for a compressor in the
1 the performance of an ammonia absorption cycle refrigerator is to be compared with that of a similar
find the exergy of the water at all four states in the rankine cycle described in problem 916 assume that the
find the flows and fluxes of exergy in the condenser of problem 929 use them to determine the second law efficiency t0
find the second-law efficiency for the open fwh in problem 940problem 940an open fwh receives steam at 1 mpa 200c from
find the second-law efficiency for the closed fwh in problem 951problem 951a closed fwh in a regenerative steam power
for problem 958 consider the boilersuper heater find the exergy destruction in this setup and the second-law efficiency
steam is supplied in a line at 3 mpa 700c a turbine with an isentropic efficiency of 85 is connected to the line by a
a new air conditioner using r-410a is used in heat pump mode the high pressure is 2000 kpa and the low pressure is 400
a binary system power plant uses mercury for the high-temperature cycle and water for the low temperature cycle as
a rankine steam power plant should operate with a high pressure of 3 mpa and a low pressure of 10 kpa and the boiler
for problem 9134 determine the change in exergy of the water flow and that of the air flow use these values to
do problem 931 with r-134a as the working fluid in the rankine cycleproblem 931consider the ammonia rankine-cycle power