Consider the simple steam power plant, as shown in the figure. The following dat
ID: 1862071 • Letter: C
Question
Consider the simple steam power plant, as shown in the figure.
The following data are for such a power plant.
Location of Pressure or Temperature or Quality
Leaving boiler 2.0 MPa 300
Consider the simple steam power plant, as shown in the figure. The following data are for such a power plant. Location of Pressure or Temperature or Quality Leaving boiler 2.0 MPa 300 degree C Entering turbine 1.9 MPa 290 degree C Leaving turbine, entering condenser 15 kPa 90% Leaving condenser, entering pump 14 kPa 45 degree C Pump work = 4 kJ/kg Determine the following quantities per kilogram flowing through the unit:Explanation / Answer
Assuming all processes ar steady state and kinetic and potential energy are negligible.
a). Find Q12:
q12 = h2 - h1 => -21.7 KJ/Kg There is loss of heat from stage 1 to 2
b). Find Work23.
Work23 = h2 - h3 => 3002.5 -2361 => 641.5 KJ/Kg
c). Find q34.
q34 = h4 - h3 => -2172.56 KJ/Kg
d). Find q51.
Work45 = h4- h5 " Work45 is given and h4 was found above"
?So
q51 = h1 - h5 => 2831.76 KJ/Kg