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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 /2510/CH14/EX14.7/Ex14_7.sce | |
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initial commit / add all books
Diffstat (limited to '2510/CH14/EX14.7/Ex14_7.sce')
| -rwxr-xr-x | 2510/CH14/EX14.7/Ex14_7.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/2510/CH14/EX14.7/Ex14_7.sce b/2510/CH14/EX14.7/Ex14_7.sce new file mode 100755 index 000000000..e78e683a8 --- /dev/null +++ b/2510/CH14/EX14.7/Ex14_7.sce @@ -0,0 +1,17 @@ +//Variable declaration: +m = 8000.0 //Rate of oil flow inside the tube (lb/h) +Cp = 0.55 //Heat capacity of oil (Btu/lb.°F) +T1 = 210.0 //Initial temperature of oil (°F) +T2 = 170.0 //Final temperature of oil (°F) +t = 60.0 //Tube surface temperature (°F) + +//Calculation: +DT = T2 - T1 //Change in temperature (°F) +Q = m*Cp*DT //Heat transferred from the heavy oil (Btu/h) +DT1 = T1 - t //Temperature difference driving force at the pipe entrance (°F) +DT2 = T2 - t //Temperature difference driving force at the pipe exit (°F) +DTlm = (DT1 - DT2)/(log(DT1/DT2)) //LMTD (driving force) for the heat exchanger (°F) + +//Result: +printf("The heat transfer rate is : %.0f Btu/h.",Q) +printf("The LMTD for the heat exchanger is : %.0f °F.",DTlm) |