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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 /2837/CH8 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2837/CH8')
| -rwxr-xr-x | 2837/CH8/EX8.1/Ex8_1.sce | 13 | ||||
| -rwxr-xr-x | 2837/CH8/EX8.2/Ex8_2.sce | 28 |
2 files changed, 41 insertions, 0 deletions
diff --git a/2837/CH8/EX8.1/Ex8_1.sce b/2837/CH8/EX8.1/Ex8_1.sce new file mode 100755 index 000000000..a81f03176 --- /dev/null +++ b/2837/CH8/EX8.1/Ex8_1.sce @@ -0,0 +1,13 @@ +clc
+clear
+//Initialization of variables
+q=1000 //Btu
+th=1140 //F
+tl=40 //F
+ts=940 //F
+//calculations
+Q1=q*(th-tl)/(th+460)
+Q2=q*(ts-tl)/(ts+460)
+dif=Q1-Q2
+//results
+printf("Available energy loss = %d Btu",dif)
diff --git a/2837/CH8/EX8.2/Ex8_2.sce b/2837/CH8/EX8.2/Ex8_2.sce new file mode 100755 index 000000000..c5da73301 --- /dev/null +++ b/2837/CH8/EX8.2/Ex8_2.sce @@ -0,0 +1,28 @@ +clc
+clear
+//Initialization of variables
+ma=200000 //lb
+cpa=0.26
+T2g=1200 //F
+T1g=300 //F
+T1w=200 //F
+mw=250000 //lb
+cpw=1.02
+Tl=560 //R
+cx=1.01
+//calculations
+T2w=T1w+ ma*cpa*(T2g-T1g)/(mw*cpw)
+Qun=Tl*ma*cpa*log((T2g+460)/(T1g+460))
+Qtr=ma*cpa*(T2g-T1g)
+Qav=Qtr-Qun
+Qun2=Tl*mw*cx*log((T2w+460)/(T1w+460))
+Qav2=Qtr-Qun2
+ht1=Qav-Qav2
+//results
+printf("For gas, Untransferred energy = %d Btu/hr",Qun)
+printf("\n For gas, transferred energy = %d Btu/hr",Qtr)
+printf("\n For gas, available energy = %d Btu/hr",Qav)
+printf("\n For water, Untransferred energy = %d Btu/hr",Qun2)
+printf("\n For water, available energy = %d Btu/hr",Qav2)
+printf("\n Loss of available energy = %d Btu/hr",ht1)
+disp('The answers are a bit different due to rounding off error in textbook')
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