diff options
Diffstat (limited to '3825/CH9/EX9.1/Ex9_1.sce')
-rw-r--r-- | 3825/CH9/EX9.1/Ex9_1.sce | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/3825/CH9/EX9.1/Ex9_1.sce b/3825/CH9/EX9.1/Ex9_1.sce new file mode 100644 index 000000000..20cbf86ab --- /dev/null +++ b/3825/CH9/EX9.1/Ex9_1.sce @@ -0,0 +1,38 @@ +clc
+h1=137.77
+v1=0.0010052
+P1=0.005 //presurre in MPa
+P2=3 //pressure in MPa
+WP=v1*(P2-P1)*10^6
+mprintf("WP=%fkJ/kg\n",WP/1000)//ans vary due to roundoff error
+EtaP=0.8
+h2apostrophe=h1+((WP/1000)/EtaP)
+mprintf("h2apostrophe=%fkJ/kg\n",h2apostrophe)//ans vary due to roundoff error
+h4=2995.1
+s4=6.5422
+q1=h4-h2apostrophe
+mprintf("q1=%fkJ/kg\n",q1)//ans vary due to roundoff error
+s5=s4
+sf=0.4763
+hf=137.77
+sg=8.396
+hg=2561.6
+X5=(s5-sf)/(sg-sf)
+mprintf("X5=%f\n",X5)//ans vary due to roundoff error
+h5=(X5*hg)+(1-X5)*hf
+mprintf("h5=%fkJ/kg\n",h5)//ans vary due to roundoff error
+EtaT=0.85
+deltaH=EtaT*(h4-h5)
+mprintf("h4-h5=%fkJ/kg\n",deltaH)//ans vary due to roundoff error
+Eta=(deltaH-(h2apostrophe-h1))/(h4-h2apostrophe)
+mprintf("Eta=%f\n",Eta)//ans vary due to roundoff error
+Pout=deltaH-(h2apostrophe-h1)
+mprintf("Power output per kg of steam=%fkJ\n",Pout)//ans vary due to roundoff error
+mprintf("Steam production rate for 1 MW power output=%fkg/s\n",(10^3)/Pout)//ans vary due to roundoff error
+mprintf("Thermal efficinecy of Rankine cycle=%f",(h4-h5-(WP/1000))/(h4-h2apostrophe))//ans vary due to roundoff error
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