diff options
Diffstat (limited to '2510/CH16/EX16.6/Ex16_6.sce')
| -rwxr-xr-x | 2510/CH16/EX16.6/Ex16_6.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/2510/CH16/EX16.6/Ex16_6.sce b/2510/CH16/EX16.6/Ex16_6.sce new file mode 100755 index 000000000..0c4f47f3e --- /dev/null +++ b/2510/CH16/EX16.6/Ex16_6.sce @@ -0,0 +1,18 @@ +//Variable declaration: +T1 = 400.0 //Temperature of fluid entering the shell ( F) +T2 = 250.0 //Temperature of fluid leaving the shell ( F) +t1 = 100.0 //Temperature of fluid entering the tube ( F) +t2 = 175.0 //Temperature of fluid leaving the tube ( F) + +//Calculation: +DT1 = T1 - T2 //Temperature driving force 1 ( F) +DT2 = t2 - t1 //Temperature driving force 1 ( F) +DTlm1 = ((DT1-DT2)/log(DT1/DT2)) //Log mean temperature driving force for ideal countercurrent heat exchanger ( F) +P = (t2-t1)/(T1 - t1) //Dimensionless ratio P +R = (T1-T2)/(t2-t1) //Dimensionless ratio R +//From figure 16.8: +F = 0.985 //Correction factor +DTlm2 = F*DTlm1 //Log mean temperature driving force for shell and tube exchanger ( F) + +//Result: +printf("The log mean temperature difference between the hot fluid and the cold fluid is : %.1f F.",DTlm2) |