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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/CH6/EX6.16/Chapter6_Exampl16.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '1808/CH6/EX6.16/Chapter6_Exampl16.sce')
| -rw-r--r-- | 1808/CH6/EX6.16/Chapter6_Exampl16.sce | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/1808/CH6/EX6.16/Chapter6_Exampl16.sce b/1808/CH6/EX6.16/Chapter6_Exampl16.sce new file mode 100644 index 000000000..2602e7f4b --- /dev/null +++ b/1808/CH6/EX6.16/Chapter6_Exampl16.sce @@ -0,0 +1,45 @@ +clc
+clear
+//INPUT DATA
+t1=293;//temperature in K
+t21=363;//temperature in K
+t3=308;//temperature in K
+t41=273;//temperature in K
+p1=1;//compressor pressure in bar
+p2=2;//turbine pressure in bar
+g=1.4;//constant
+cp=1.005;//specific pressure
+m=1;//mass of air
+N=350;//speed in rpm
+R=0.287;//gas constant
+nv=0.9;//volumetric efficiency in percentage
+
+
+//CALCULATIONS
+t2=t1*((p2/p1)^((g-1)/g));//temperature in K
+nc=(((t2-t1)/(t21-t1)))*100;//compressor efficiency in percentage
+t4=t3*((p1/p2)^((g-1)/g));//temperature in K
+nt=(((t3-t41)/(t3-t4)))*100;//turbine efficiency in percentage
+Qa=cp*(t1-t41);//Refrigeration effect
+m1=30*210/Qa;//mass flow rate of air in kg/min
+wn=cp*(m1/60)*((t21-t1)-(t3-t41));//power input in kW
+cop=Qa*m1/(wn*60);//COP
+v1=m*R*t1/(p1*10^2);//volume in m^3/kg
+vs=v1/nv;//swept volume in m^3/kg
+d=(4*vs/(3.14*1.5*N))^(1/3);//diameter of compressor in m
+l=1.5*d;//compressor length in m
+
+//OUTPUT
+printf('(i)The compressor efficiency is %3.2f percentage \n (ii)Turbine efficiency is %3.2f percentage \n (iii)Refrigeration effect %3.2f kJ/kg \n (iv)power input is %3.2f kW \n (v)COP is %3.3f \n (vi)compressor diameter is %3.4f m \n length %3.3f m',nc,nt,Qa,wn,cop,d,l)
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