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authorpriyanka2015-06-24 15:03:17 +0530
committerpriyanka2015-06-24 15:03:17 +0530
commitb1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch)
treeab291cffc65280e58ac82470ba63fbcca7805165 /2141/CH7
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Diffstat (limited to '2141/CH7')
-rwxr-xr-x2141/CH7/EX7.1/Ex7_1.sce19
-rwxr-xr-x2141/CH7/EX7.10/Ex7_10.sce17
-rwxr-xr-x2141/CH7/EX7.11/Ex7_11.sce13
-rwxr-xr-x2141/CH7/EX7.2/Ex7_2.sce22
-rwxr-xr-x2141/CH7/EX7.3/Ex7_3.sce16
-rwxr-xr-x2141/CH7/EX7.5/Ex7_5.sce10
-rwxr-xr-x2141/CH7/EX7.6/Ex7_6.sce17
-rwxr-xr-x2141/CH7/EX7.7/Ex7_7.sce13
-rwxr-xr-x2141/CH7/EX7.8/Ex7_8.sce15
-rwxr-xr-x2141/CH7/EX7.9/Ex7_9.sce15
10 files changed, 157 insertions, 0 deletions
diff --git a/2141/CH7/EX7.1/Ex7_1.sce b/2141/CH7/EX7.1/Ex7_1.sce
new file mode 100755
index 000000000..e2f3bc290
--- /dev/null
+++ b/2141/CH7/EX7.1/Ex7_1.sce
@@ -0,0 +1,19 @@
+
+clc
+//initialisation of variables
+p2=150//lbf/in^2
+v=20 //f
+h1=79.385 //lbf/in^2
+g=144//in^2/ft^3
+T=778//F
+p=35.736//lbf/in^2
+s1=0.16719 //btu/lbm-R
+T2=122.9 //F
+h2=90.330 //lbf/in^2
+v2=0.28270 //Btu/lbm
+//CALCULATIONS
+u1=h1-(p*g*1.0988/T)//Btu/lbmu
+u2=h2-(p2*g*v2/T//Btu/lbm
+W=u1-u2 //Btu/lbm
+//RESULTS
+printf('the work per pound =% f Btu/lbm',W)
diff --git a/2141/CH7/EX7.10/Ex7_10.sce b/2141/CH7/EX7.10/Ex7_10.sce
new file mode 100755
index 000000000..0785989b8
--- /dev/null
+++ b/2141/CH7/EX7.10/Ex7_10.sce
@@ -0,0 +1,17 @@
+
+clc
+//initialisation of variables
+w=212 //F
+Sliq=212 //F
+T=80 //F
+Sf=-1.4446 //Btu/lbm
+Sh=1.4446 //Btu/lbm
+Q=970.3 //Btu/lbm
+T1=540 //F
+//CALCULATIONS
+DelS=Q/T1 //btu/lbm
+S=Sf+DelS //Btu//lbm-R
+Qsurr=T1*Sh //Btu/lbm
+W=Q-Qsurr //Btu/lbm
+//RESULTS
+printf('The water equal to increase in entropy of the system plus surroundings=% f Btu/lbm',W)
diff --git a/2141/CH7/EX7.11/Ex7_11.sce b/2141/CH7/EX7.11/Ex7_11.sce
new file mode 100755
index 000000000..c1d8b3882
--- /dev/null
+++ b/2141/CH7/EX7.11/Ex7_11.sce
@@ -0,0 +1,13 @@
+
+clc
+//initialisation of variables
+h1=1279.1 //ft/lbm
+s1=1.7085//ft/lbm
+x=0.1210 //Btu/lbm
+h2=1116.2-x*(1022.2) //Btu/lbm
+W=h1-h2 //Btu/lbm
+Wa=172 //Btu/lbm
+//CALCULATIONS
+Nth=Wa/W*100//per cent
+//RESULTS
+printf('the efficiency of turbine =% f per cent',Nth)
diff --git a/2141/CH7/EX7.2/Ex7_2.sce b/2141/CH7/EX7.2/Ex7_2.sce
new file mode 100755
index 000000000..cf6bc68f1
--- /dev/null
+++ b/2141/CH7/EX7.2/Ex7_2.sce
@@ -0,0 +1,22 @@
+
+clc
+//initialisation of variables
+p1=100 //lbf/in^2
+t=500//F
+v=200 //ft/sec
+p2=20 //lbf/in^2
+v1=600//ft/sec
+hi=1279.1 //Btu/lbm
+si=1.7085 //Btu/lbm-R
+Pe=20 //lbf/in^2
+Se=1.7085 //Btu/lbm
+x=0.01676 //Btu/lbm
+hg=1156.3 //Btu/lbm
+hf=960.1 //Btu/lbm
+g=32.17//in^2/ft^3
+T=778//F
+//CALCULATIONS
+he=hg-x*hf //Btu/lbm
+W=hi-he+[(v^2)-(v1^2)]/(2*g*T)//Btu/lbm
+//RESULTS
+printf('The work per pound of steam for this isentropic process=% f Btu/lbm',W)
diff --git a/2141/CH7/EX7.3/Ex7_3.sce b/2141/CH7/EX7.3/Ex7_3.sce
new file mode 100755
index 000000000..bb46f687f
--- /dev/null
+++ b/2141/CH7/EX7.3/Ex7_3.sce
@@ -0,0 +1,16 @@
+
+clc
+//initialisation of variables
+Pi=100//lbf/in^2
+Ti=500 //F
+vi=100 //ft/sec
+Pe=40//lbf/in^2
+hi=1279.1//Btu/lbm
+si=1.7085 //Btu/lbm-R
+he=1193.8//Btu/lbm
+h=2*32.17*778 //lbm
+//CALCULATIONS
+W=hi-he+(Pi*vi)/(h)//btu/lbm
+Ve=sqrt(h*W)//ft/sec
+//RESULTS
+printf('The exit velocity of the steam from the nozzle =% f ft/sec',Ve)
diff --git a/2141/CH7/EX7.5/Ex7_5.sce b/2141/CH7/EX7.5/Ex7_5.sce
new file mode 100755
index 000000000..4aad55603
--- /dev/null
+++ b/2141/CH7/EX7.5/Ex7_5.sce
@@ -0,0 +1,10 @@
+
+clc
+//initialisation of variables
+v=0.01608 //ft
+P1=100 //lbf/in^2
+P2=1000 //lbf/in^2
+//CALCULATIONS
+W=v*(P2-P1)*144/778//Btu/lbm
+//RESULTS
+printf('The work per pound to pump water isentropically =% f Btu/lbm',W)
diff --git a/2141/CH7/EX7.6/Ex7_6.sce b/2141/CH7/EX7.6/Ex7_6.sce
new file mode 100755
index 000000000..9b70c1bbc
--- /dev/null
+++ b/2141/CH7/EX7.6/Ex7_6.sce
@@ -0,0 +1,17 @@
+
+clc
+//initialisation of variables
+T1=500 //R
+T2=2000 //R
+P1=30 //lbf/in^2
+P2=20 //lbf/in^2
+M=32.00 //ft
+S2=11.515*log(T2/T1)
+s1=2*172*(1/sqrt(T2-1/sqrt(T1)))
+s=-1530*[(1/T2-1/T1)]
+s3=-1.986*log(P2/P1)
+//CALCULATIONS
+S=S2-s1+s+s3//Btu/lb mole R
+S2=S/M//Btu/lbm-R
+//RESULTS
+printf('The change in entropy per =% f Btu/lbm',S2)
diff --git a/2141/CH7/EX7.7/Ex7_7.sce b/2141/CH7/EX7.7/Ex7_7.sce
new file mode 100755
index 000000000..47b330bc4
--- /dev/null
+++ b/2141/CH7/EX7.7/Ex7_7.sce
@@ -0,0 +1,13 @@
+
+clc
+//initialisation of variables
+Fhy1=0.6008 //Btu/lbm-R
+Fhy2=0.7963 //Btu/lbm-R
+P1=50 //lbf/in^2
+P2=40 //lbf/in^2
+T=778//R
+g=53.34//Btu/lbm-R
+//CALCULATIONS
+S=Fhy2-Fhy1-(g/T)*log(P2/P1)//Btu/lbm-R
+//RESULTS
+printf('The change in entropy per pound as air is heated =% f Btu/lbm-R',S)
diff --git a/2141/CH7/EX7.8/Ex7_8.sce b/2141/CH7/EX7.8/Ex7_8.sce
new file mode 100755
index 000000000..d29a5f947
--- /dev/null
+++ b/2141/CH7/EX7.8/Ex7_8.sce
@@ -0,0 +1,15 @@
+
+clc
+//initialisation of variables
+T1=1060 //R
+hi=255.96 //Btu/lbm
+pr=15.203 //ft/sec
+p1=20 //lbf/in^2
+p2=50 //lbf/in^2
+Te=822//R
+he=197.18 //Btu/lbm
+//CALCULATIONS
+Pe=pr*(p1/p2)//Btu/lbm
+W=hi-he //Btu/lbm
+//RESULTS
+printf('The work per pound of air flowing through the turbine=% f Btu/lbm',W)
diff --git a/2141/CH7/EX7.9/Ex7_9.sce b/2141/CH7/EX7.9/Ex7_9.sce
new file mode 100755
index 000000000..b7e6d2b0c
--- /dev/null
+++ b/2141/CH7/EX7.9/Ex7_9.sce
@@ -0,0 +1,15 @@
+
+clc
+//initialisation of variables
+P1=14.7 //lbf/in^2
+P2=60 //lbf/in^2
+T1=520 //R
+n=1.3 //constant
+T=1.383
+R=55.15//ft
+w=-47.0//Btu/lbm
+//CALCULATIONS
+T2=T1*T//R
+Q=0.177*(T2-T1)+w//Btu/lbm
+//RESULTS
+printf('The work and heat transfer per pound =% f Btu/lbm',Q)