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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/EX6.8/Chapter6_Exampl8.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '1808/CH6/EX6.8/Chapter6_Exampl8.sce')
| -rw-r--r-- | 1808/CH6/EX6.8/Chapter6_Exampl8.sce | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/1808/CH6/EX6.8/Chapter6_Exampl8.sce b/1808/CH6/EX6.8/Chapter6_Exampl8.sce new file mode 100644 index 000000000..548b1e66b --- /dev/null +++ b/1808/CH6/EX6.8/Chapter6_Exampl8.sce @@ -0,0 +1,46 @@ +clc
+clear
+//INPUT DATA
+cpv2=2.805;//specific pressure kJ/kgk
+cpv3=4.606;//specific pressure kJ/kgK
+t21=303;//condenser temperature in K
+t1=258;//evaporator temperature in K
+t31=283;//subcooled temperature in K
+nv=0.8;//volumetric efficiency in percentage
+p1=2.36;//pressure in MPa
+p2=11.67;//pressure in MPa
+hf1=112.3;//enthalpy in kJ/kg
+hfg1=1313.7;//enthalpy in kJ/kg
+hg1=1426;//enthalpy in kJ/kg
+hf2=323.1;//enthalpy in kJ/kg
+hfg2=1145.9;//enthalpy in kJ/kg
+hg2=1469;//enthalpy in kJ/kg
+sf1=0.457;//entropy in kJ/kgK
+sf2=1.204;//entropy in kJ/kgK
+sg1=5.549;//entropy in kJ/kgK
+sg2=4.984;//entropy in kJ/kgK
+v1=0.509;//volume in m^3/kg
+t2=369.69;//from t-s diagram temperature in K
+
+
+//CALCULATIONS
+h2=hg2+cpv2*(t2-t21);//enthalpy in kJ/kg
+h31=hf2-cpv3*(t21-t31);//enthalpy in kJ/kg
+Re1=hg1-hf2;//refrigeration effect in kJ/kg
+Re2=hg1-h31;//refrigeration effect in kJ/kg
+mt1=210/Re1;//mass flow rate per ton in kg/min
+mt2=210/Re2;//mass flow rate per ton in kg/min
+vsa1=(mt1*v1)/nv;//compressor volume capacity
+vsa2=(mt2*v1)/nv;//compressor volume capacity
+wn=h2-hg1;//net work done
+cop1=Re1/wn;//COP
+cop2=Re2/wn;//COP
+pcop=((cop1-cop2)/cop2)*100;//Percentage COP of dry and subcooled
+pt1=wn*mt1/60;//Power per ton in kW/TR
+pt2=wn*mt2/60;//Power per ton in kW/TR
+
+//OUTPUT
+printf('DRY COMPRESSION \n(a)Refrigeration effect is %3.1f kJ/kg \n (b)The flow rate of refrigerant per ton is %3.4f kg/min \n (c)The compressor volume capacity %3.2f \n (d)COP is %3.2f \n (e)The power per TR is %3.2f kW/TR \n',Re1,mt1,vsa1,cop1,pt1)
+
+printf('DRY AND SUBCOOLED \n(a)Refrigeration effect is %3.1f kJ/kg \n (b)The flow rate of refrigerant per ton is %3.4f kg/min \n (c)The compressor volume capacity %3.2f \n (d)COP is %3.2f \n (e)The power per TR is %3.2f kW/TR',Re2,mt2,vsa2,cop2,pt2)
+
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