1. A steam power plant with two boilers are connected to a steam turbine. Both boiler...

 

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1. A steam power plant with two boilers are connected to a steam turbine. Both boiler received a H20 at 5MPa and 190C. Both hot vapors will enter a mixing chamber before entering the turbine. Steam from Boiler A entered a mixing chamber at 5 kg/s and 10MPa, 630-C while Boiler B entered the turbine with 8 kg/s of steam at 10 MPa. Later vapor will be mixed in mixing chamber before entering isentropic turbine. Vapor will leave the isentropic turbine at 10 kPa, with a quality of 10%. Calculate a) the heat added to boiler A b) the temperature and quality of vapor leaving boiler B if the sum of heat obtained from boiler A and B is 25MW c) temperature of vapor entering the isentropic turbine d) power produce by isentropic turbine e) the isentropic efficiency steam turbine f) if the isentropic efficiency of the turbine dropped to 85%, how much power loss compared to isentropic turbine? 1. A steam power plant with two boilers are connected to a steam turbine. Both boiler received a H20 at 5MPa and 190C. Both hot vapors will enter a mixing chamber before entering the turbine. Steam from Boiler A entered a mixing chamber at 5 kg/s and 10MPa, 630-C while Boiler B entered the turbine with 8 kg/s of steam at 10 MPa. Later vapor will be mixed in mixing chamber before entering isentropic turbine. Vapor will leave the isentropic turbine at 10 kPa, with a quality of 10%. Calculate a) the heat added to boiler A b) the temperature and quality of vapor leaving boiler B if the sum of heat obtained from boiler A and B is 25MW c) temperature of vapor entering the isentropic turbine d) power produce by isentropic turbine e) the isentropic efficiency steam turbine f) if the isentropic efficiency of the turbine dropped to 85%, how much power loss compared to isentropic turbine?