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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 /905/CH4/EX4.2/4_2.sce | |
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Diffstat (limited to '905/CH4/EX4.2/4_2.sce')
| -rwxr-xr-x | 905/CH4/EX4.2/4_2.sce | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/905/CH4/EX4.2/4_2.sce b/905/CH4/EX4.2/4_2.sce new file mode 100755 index 000000000..774da1f87 --- /dev/null +++ b/905/CH4/EX4.2/4_2.sce @@ -0,0 +1,45 @@ +clear;
+clc;
+
+// Illustration 4.2
+// Page: 227
+
+printf('Illustration 4.2 - Page: 227\n\n');
+
+// solution
+//*****Data*****//
+u = 3*10^-6; // [Kinematic viscosity, square m/s]
+v = 0.01; // [Superficial liquid velocity, m/s]
+g = 9.8; // [square m/s]
+//*****//
+// From table 4.1
+// For metal pall rings
+a_pr = 112.6; // [ square m/cubic m]
+e_pr = 0.951;
+Ch_pr = 0.784;
+// For Hiflow rings
+a_hr = 92.3; // [square m/cubic m]
+e_hr = 0.977;
+Ch_hr = 0.876;
+
+// Renoylds and Froude's number for metal pall rings
+Rel_pr = v/(u*a_pr);
+Frl_pr = v^2*a_pr/g;
+// From equation 4.5 since Rel is greater than 5, for pall rings
+// ah/a = x_pr
+x_pr = 0.85*Ch_pr*Rel_pr^0.25*Frl_pr^0.1;
+// From equation 4.3
+hl_pr = (12*Frl_pr/Rel_pr)^(1/3)*(x_pr)^(2/3);
+
+
+// Renoylds and Froude's number for Hiflow rings
+Rel_hr = v/(u*a_hr);
+Frl_hr = v^2*a_hr/g;
+// From equation 4.5 since Rel is greater than 5, for pall rings
+// ah/a = x_pr
+x_hr = 0.85*Ch_hr*Rel_hr^0.25*Frl_hr^0.1;
+// From equation 4.3
+hl_hr = (12*Frl_hr/Rel_hr)^(1/3)*(x_hr)^(2/3);
+
+printf("The specific liquid holdup for Metal pall ring and Hiflow ring are %f cubic m holdup/cubic m packed bed and %f cubic m holdup/cubic m packed bed respectively\n\n",hl_pr,hl_hr);
+
\ No newline at end of file |