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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /599/CH5/EX5.8 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '599/CH5/EX5.8')
| -rwxr-xr-x | 599/CH5/EX5.8/example5_8.sce | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/599/CH5/EX5.8/example5_8.sce b/599/CH5/EX5.8/example5_8.sce new file mode 100755 index 000000000..a8f2126e1 --- /dev/null +++ b/599/CH5/EX5.8/example5_8.sce @@ -0,0 +1,45 @@ +
+clear;
+clc;
+printf("\t Example 5.8\n");
+pa1=4.24 //data: vapour pressure of water at 30degree = 4.24 kpa
+pa2=1.70 // vapour pressure of water at 30degree = 1.70 kpa
+
+//part(i)
+pt=100; //total pressure
+ys_bar=pa1/(pt-pa1); //kg water vapour/kg dry air
+rh=.8; //relative humidity
+pa3=rh*pa1; //partial pressure
+y_bar=pa3*(18/28.84)/(pt-pa3); //molal humidity
+printf("\n the molal humidity:%f kg/kg dry air",y_bar);
+
+//part(ii)
+//under these conditions the air will be saturated at 15 degree as some water is condensed
+pa=1.7;
+pt=200;
+ys=pa/(pt-pa);
+ys_bar=ys*(18/28.84);
+printf("\n the molal humidity if pressure doubled and temp. is 15 :%f kg/kg dry air",ys_bar);
+
+//part(iii)
+Ma=18; //molecular weight
+Mb=28.84; //molecular weight
+Tg=30; //temperature of mixture
+rh=(pa/pa2)*100; //relative humidity in pecentage
+pt=10^5; //total pressure in pascal
+VH=8315*[(1/Mb)+(y_bar/Ma)]*[(Tg+273)/pt]; //humid volume in m^3mixture/kg of dry air
+printf("\n we get humid volume VH as \t :%f m^3/kg of dry air",VH);
+w=100/VH; //100 m^3 of original air
+wo= w*y_bar; //water present in original air
+wf= w*ys_bar; //water present finally
+wc=wo-wf; //water condensed from 100m^3 of original sample
+printf("\n the weight water condensed from 100m^3 of original sample:%f kg",wc);
+
+//part(iv)
+Tg=15; //temperature of mixture
+pt=2*10^5; //total pressure in pascal
+VH=8315*[(1/Mb)+(ys_bar/Ma)]*[(Tg+273)/pt]; //humid volume in m^3mixture/kg of dry air
+vf=VH*110.6; //final volume of mixture
+printf("\n we get VH final volume of mixture as \t :%f m^3",vf);
+
+//end
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