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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 /1709/CH6 | |
| 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 '1709/CH6')
| -rwxr-xr-x | 1709/CH6/EX6.1/6_1.sce | 12 | ||||
| -rwxr-xr-x | 1709/CH6/EX6.2/6_2.sce | 10 | ||||
| -rwxr-xr-x | 1709/CH6/EX6.3/6_3.sce | 13 | ||||
| -rwxr-xr-x | 1709/CH6/EX6.4/6_4.sce | 11 | ||||
| -rwxr-xr-x | 1709/CH6/EX6.5/6_5.sce | 12 | ||||
| -rwxr-xr-x | 1709/CH6/EX6.6/6_6.sce | 13 |
6 files changed, 71 insertions, 0 deletions
diff --git a/1709/CH6/EX6.1/6_1.sce b/1709/CH6/EX6.1/6_1.sce new file mode 100755 index 000000000..f2972f2b2 --- /dev/null +++ b/1709/CH6/EX6.1/6_1.sce @@ -0,0 +1,12 @@ +clc
+//Initialization of variables
+m=5 //lbm
+P=50 //psia
+T=500 + 460 //R
+//calculations
+disp("From saturated steam tables,")
+s1=0.4110 //B/lbm R
+s2=1.7887 //B/lbm R
+dS=m*(s2-s1)
+//results
+printf("Change in entropy = %.3f B/R",dS)
diff --git a/1709/CH6/EX6.2/6_2.sce b/1709/CH6/EX6.2/6_2.sce new file mode 100755 index 000000000..e73e02a15 --- /dev/null +++ b/1709/CH6/EX6.2/6_2.sce @@ -0,0 +1,10 @@ +clc
+//Initialization of variables
+P=20 //psia
+T=227.96+ 459.69 //R
+//calculations
+disp("from saturation tables,")
+sfg=1.3962 //B/ R lbm
+Q=T*sfg
+//results
+printf("heat transfer = %.1f B/lbm",Q)
diff --git a/1709/CH6/EX6.3/6_3.sce b/1709/CH6/EX6.3/6_3.sce new file mode 100755 index 000000000..432c068ea --- /dev/null +++ b/1709/CH6/EX6.3/6_3.sce @@ -0,0 +1,13 @@ +clc
+//Initialization of variables
+T1=100+460 //R
+P1=15//psia
+P2=50 //psia
+n=1.3
+cp=0.24
+//calculations
+T2=T1*(P2/P1)^((n-1)/n)
+dS=cp*log(T2/T1) - 53.35/778 *log(P2/P1)
+//results
+printf("Change in entropy = %.3f B/lbm R",dS)
+//the answer given in textbook is wrong. Please check it using a calculator
diff --git a/1709/CH6/EX6.4/6_4.sce b/1709/CH6/EX6.4/6_4.sce new file mode 100755 index 000000000..eeb285090 --- /dev/null +++ b/1709/CH6/EX6.4/6_4.sce @@ -0,0 +1,11 @@ +clc
+//Initialization of variables
+T1=85+460 //R
+T2=T1
+cp=0.24
+P2=15 //psia
+P1=30 //psia
+//calculations
+dS=cp*log(T2/T1) - 53.35/778 *log(P2/P1)
+//results
+printf("Change in entropy = %.4f B/lbm R",dS)
diff --git a/1709/CH6/EX6.5/6_5.sce b/1709/CH6/EX6.5/6_5.sce new file mode 100755 index 000000000..2c5bcd9a1 --- /dev/null +++ b/1709/CH6/EX6.5/6_5.sce @@ -0,0 +1,12 @@ +clc
+//Initialization of variables
+Qh=-1000 //Btu
+Ql=1000 //Btu
+Th=1460 //R
+Tl=960 //R
+//calculations
+Sh=Qh/Th
+Sl=Ql/Tl
+S=Sh+Sl
+//results
+printf("Change in entropy of the universe = %.3f B/R",S)
diff --git a/1709/CH6/EX6.6/6_6.sce b/1709/CH6/EX6.6/6_6.sce new file mode 100755 index 000000000..7f332736d --- /dev/null +++ b/1709/CH6/EX6.6/6_6.sce @@ -0,0 +1,13 @@ +clc
+//Initialization of variables
+disp("from steam tables,")
+h1=1416.4 //B/lbm
+s1=1.6842 //B/lbm R
+//calculations
+s2=s1
+P2=50 //psia
+T2=317.5 //F
+h2=1193.7
+W=h2-h1
+//results
+printf("Work calculated = %.1f B/lbm",W)
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