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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/CH6/EX6.1/example6_1.sce | |
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initial commit / add all books
Diffstat (limited to '599/CH6/EX6.1/example6_1.sce')
| -rwxr-xr-x | 599/CH6/EX6.1/example6_1.sce | 33 |
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diff --git a/599/CH6/EX6.1/example6_1.sce b/599/CH6/EX6.1/example6_1.sce new file mode 100755 index 000000000..422ea7a86 --- /dev/null +++ b/599/CH6/EX6.1/example6_1.sce @@ -0,0 +1,33 @@ +
+clear;
+clc;
+printf("\t Example 6.1\n");
+
+ //air leaves the pre-heater of the dryer at 325K
+
+H1=.005; //humidity of incoming air per kg of dry air
+T1=25; //wet bulb temperature
+ //moisture is removed along constant wet bulb temp. till 60per R.H is reached
+// from the chart ,humidity of ai rleaving first shelf =.016 kg water /kg dry air.
+
+//dry bulb temp. of exit air is at 27 degree aand is at humidity of .016 kg water/kg dry air.the air is again heated to 52 degree dry bulb temp. in 2nd heater .
+
+ //so air leaves heater at 52 degree and humidity of .016 kg water/kg dry air. when it leaves the 2nd shelf the correspondin dry bulb temp. is 34 degree and humidity is .023 kg water/kg dry air. the air enters the 3rd shelf after preheating to 52 degree .
+
+//similarly fro 3rd shelf , exit air has a humidity of .028 kg water/kg dry air and adry bulb temp. is 39 degree. the air is leaving the 4rth shelf has a humidity of .016 kg water/kg dry air and adry bulb temp. of 42 degree(the figure is only indicative and doed not correspond toactual one)
+
+printf("\n the solid temp. correspond to wbt and they are 23, 27,32 and 34 degree respectively");
+
+ //part(ii)
+Ybar=.032; //kg water/kg dry air//final moist air condotions
+T2=42; //dry bulb temperature
+Mair=28.84; //molecular weight of air
+Mwater=18; //molecular weight of water
+pt=1.013*10^5; //total pressure in pascal
+Vh=8315*((1/Mair)+(Ybar/Mwater))*((T2+273)/pt);
+r=300; //flow rate of moist air leaving the dryer
+a=r*60/Vh; //amount of dry air leaving /hr
+w=a*(Ybar-0.005); // water removed /hr
+printf("\n the water removed /hr is :%fkg /hr",w);
+
+//end
\ No newline at end of file |