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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3685/CH9/EX9.12 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3685/CH9/EX9.12')
| -rw-r--r-- | 3685/CH9/EX9.12/Ex9_12.sce | 31 | ||||
| -rw-r--r-- | 3685/CH9/EX9.12/Ex9_12.txt | 5 |
2 files changed, 36 insertions, 0 deletions
diff --git a/3685/CH9/EX9.12/Ex9_12.sce b/3685/CH9/EX9.12/Ex9_12.sce new file mode 100644 index 000000000..7ac45f282 --- /dev/null +++ b/3685/CH9/EX9.12/Ex9_12.sce @@ -0,0 +1,31 @@ +clc
+m = 0.02 // Mass of steam in Kg
+d = 280 // diameter of piston in mm
+l = 305 // Stroke length in mm
+P1 = 0.6 // Initial pressure in MPa
+P2 = 0.12 // Final pressure in MPa
+// At 0.6MPa, t = 200 degree
+v1 = 0.352 // Specific volume in m^3/kg
+h1 = 2850.1 // Specific enthalpy in kJ/kg
+vf = 0.0010476 // specific volume of fluid in m^3/kg
+vfg = 1.4271 // Specific volume change due to vaporization in m^3/kg
+uf = 439.3 // specific enthalpy of fluid
+ug = 2512.0 // Specific enthalpy of gas
+printf("\n Example 9.12")
+V1 = m*v1 // total volume at point 1
+Vd = (%pi/4)*(d*1e-3)^2*l*1e-3 // displaced volume
+V2 = V1+Vd // Total volume at point 2
+n = log(P1/P2)/log(V2/V1) // polytropic index
+W12 = ((P1*V1)-(P2*V2))*1e6/(n-1) // work done
+printf("\n The value of n is %f ",n)
+printf("\n The work done by the steam is %fkJ ",W12/1e3)
+//The answers vary due to round off error
+v2 = V2/m // specific volume
+x2 = (v2-vf)/vfg // Steam quality
+// At 0.12MPa
+u2 = uf + (x2*(ug-uf)) // Internal energy
+u1 = h1-(P1*1e6*v1*1e-03) // Internal energy
+Q12 = m*(u2-u1)+ (W12/1e3) // Heat transfer
+printf("\n The heat transfer is %fkJ ",Q12)
+//The answers vary due to round off error
+
diff --git a/3685/CH9/EX9.12/Ex9_12.txt b/3685/CH9/EX9.12/Ex9_12.txt new file mode 100644 index 000000000..c74d1612f --- /dev/null +++ b/3685/CH9/EX9.12/Ex9_12.txt @@ -0,0 +1,5 @@ +
+ Example 9.12
+ The value of n is 1.238450
+ The work done by the steam is 4.720265kJ
+ The heat transfer is -1.800919kJ
\ No newline at end of file |