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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /1808/CH3/EX3.19/Chapter3_Exampl19.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '1808/CH3/EX3.19/Chapter3_Exampl19.sce')
| -rw-r--r-- | 1808/CH3/EX3.19/Chapter3_Exampl19.sce | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/1808/CH3/EX3.19/Chapter3_Exampl19.sce b/1808/CH3/EX3.19/Chapter3_Exampl19.sce new file mode 100644 index 000000000..ea0fdfa85 --- /dev/null +++ b/1808/CH3/EX3.19/Chapter3_Exampl19.sce @@ -0,0 +1,35 @@ +clc
+clear
+//INPUT DATA
+d=0.12;////bore of the engine in m
+l=0.13;//stroke of the engine in m
+p1=101.325;//pressure in atm
+t1=298;//temperature in K
+t3=1773;//temperature in K
+n=2000;//speed in rpm
+g=1.4;//constant
+cp=1.005;//specific pressure in kJ/kgK
+cv=0.718;//specific volume inkJ/kgK
+R=0.287;//gas constant inkJ/kgK
+
+//CALCULATIONS
+Rc=1.1/0.1;//compression ratio
+v1=R*t1/p1;//specific volume in m^3/kg
+v2=v1/Rc;//specific volume in m^3/kg
+t2=t1*((v1/v2)^(g-1));//temperature in K
+p2=p1*(v1/v2)^(g);//pressure in kN/m^2
+v3=v2*(t3/t2);//specific volume in m^3/kg
+t4=t3*((v3/v1)^(g-1));//temperature in K
+p4=p2*(v3/v1)^g;//pressure in kN/m^2
+Q3=cp*(t3-t2);//heat added in kJ/kg
+Qr=cv*(t4-t1);//heat rejected in kJ/kg
+nd=((Q3-Qr)/Q3)*100;//Thermal efficiency in percentage
+V1=1.1*(3.14*d^2*l)/4;//volume in m^3
+m=4*(n/2)*(V1/(v1*240));//flow rate in kg/s
+P=(Q3-Qr)*m;//Power of the engine in kg/s
+
+//OUTPUT
+printf('(a)compression ratio is %3.i \n (b)pressure and temperature at the end of compression is %3.2f kN/m^2 \n (c)Thermal efficiency is %3.2f percentage \n (d)Power of the engine is %2.3f kg/s ',Rc,p2,nd,P)
+
+
+
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