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Diffstat (limited to '172/CH6/EX6.9/ex9.sce')
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1 files changed, 21 insertions, 0 deletions
diff --git a/172/CH6/EX6.9/ex9.sce b/172/CH6/EX6.9/ex9.sce new file mode 100755 index 000000000..c74622274 --- /dev/null +++ b/172/CH6/EX6.9/ex9.sce @@ -0,0 +1,21 @@ +//example 9
+//heat tranfer in simple steam power plant
+clear
+clc
+h1=3023.5 //specific heat of enthalpy of steam leaving boiler in kJ/kg
+h2=3002.5 //specific heat of enthalpy of steam entering turbine in kJ/kg
+x=0.9 //quality of steam entering condenser
+hf=226 //in kJ/kg
+hfg=2373.1 //in kJ/kg
+h3=hf+x*hfg //specific heat of enthalpy of steam entering condenser in kJ/kg
+h4=188.5 //specific heat of enthalpy of steam entering pump in kJ/kg
+q12=h2-h1 //heat transfer in line between boiler and turbine in kJ/kg
+w23=h2-h3 //turbine work in kJ/kg
+q34=h4-h3 //heat transfer in condenser
+w45=-4 //pump work in kJ/kg
+h5=h4-w45 //in kJ/kg
+q51=h1-h5 //heat transfer in boiler in kJ/kg
+printf("\n hence, heat transfer in line between boiler and turbine is q12=%.1f kJ/kg. \n",q12')
+printf("\n hence, turbine work is w23=%.1f kJ/kg. \n",w23')
+printf("\n hence, heat transfer in condenser is q34=%.1f kJ/kg. \n",q34')
+printf("\n hence, heat transfer in boiler is q51=%.0f kJ/kg. \n",q51')
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