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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 /551/CH10/EX10.5/5.sce | |
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initial commit / add all books
Diffstat (limited to '551/CH10/EX10.5/5.sce')
| -rwxr-xr-x | 551/CH10/EX10.5/5.sce | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/551/CH10/EX10.5/5.sce b/551/CH10/EX10.5/5.sce new file mode 100755 index 000000000..4c727bf42 --- /dev/null +++ b/551/CH10/EX10.5/5.sce @@ -0,0 +1,46 @@ +clc
+
+//For the air at 35 0C DBT and 60% R.H.
+p_vs=0.0563; //bar; Corresponding to 35 0C from stem tables
+
+phi=0.6;
+p_t=1.0132; //bar
+cp=1.005;
+t_db=35; //0C
+h_g=2565.5; //kJ/kg
+m1=1; //kg
+m2=2; //kg
+m=m1+m2;
+
+p_v=phi*p_vs;
+W1=0.622*p_v/(p_t-p_v);
+
+//Corresponding to 0.0388 bar, from steam tables
+t_dp=26+(27-26)*(0.0338-0.0336)/(0.0356-0.0336);
+
+h_vapour=h_g + 1.88*(t_db - t_dp);
+h1=cp*t_db+W1*h_vapour;
+
+//For the air at 20°C DBT and 13°C dew point temperature :
+p_v=0.0150; //bar
+
+W2=0.622*p_v/(p_t-p_v);
+t_db=20; //0C
+t_dp=13;
+h_g=2538.1; //kJ/kg
+h_vapour=h_g + 1.88*(t_db - t_dp);
+
+h2=cp*t_db+W2*h_vapour;
+
+//let enthalpy per kg of moist air be h
+h=((m1*h1/(1+W1)) + (m2*h2/(1+W2)))/m;
+
+//Let Mass of vapour/kg of moist air be M
+M=(m1*W1/(1+W1) + m2*W2/(1+W2))/m;
+
+
+//Let specific humidity be denoted by SH
+SH=M/(1-M);
+disp("Specific humidity =")
+disp(SH)
+disp("kg/kg of dry air")
\ No newline at end of file |