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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/CH21/EX21.3/Ex21_3.sce | |
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initial commit / add all books
Diffstat (limited to '2510/CH21/EX21.3/Ex21_3.sce')
| -rwxr-xr-x | 2510/CH21/EX21.3/Ex21_3.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/2510/CH21/EX21.3/Ex21_3.sce b/2510/CH21/EX21.3/Ex21_3.sce new file mode 100755 index 000000000..a340e8add --- /dev/null +++ b/2510/CH21/EX21.3/Ex21_3.sce @@ -0,0 +1,16 @@ +//Variable declaration: +//From figure 21.5: +m = 2 //Mass flowrate (lb) +cP = 1 //Heat capacity (Btu/lb. F) +DS1 = -0.2744 //Entropy for hot fluid for E exchanger (Btu/ F) +T1 = 180 //Temperature cold fluid entering the E exchabger ( F) +T2 = 60 //Temperature cold fluid leaving the E exchabger ( F) + +//Calculation: +DS2 = m*cP*log((T1+460)/(T2+460)) //Entropy for cold fluid for E exchanger (Btu/ F) +DS_E = DS1+DS2 //Entropy for E exchanger (Btu/ F) +DS_F = DS_E //Entropy for F exchanger (Btu/ F) +DSt = DS_F+DS_E //Entropy change in exchangers E and F (Btu/ F) + +//Result: +printf("The entropy change in exchangers E and F is : %.4f Btu/ F",DSt) |