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Frontiers in Energy

ISSN 2095-1701

ISSN 2095-1698(Online)

CN 11-6017/TK

邮发代号 80-972

2019 Impact Factor: 2.657

Frontiers in Energy  2013, Vol. 7 Issue (4): 495-505   https://doi.org/10.1007/s11708-013-0267-5
  RESEARCH ARTICLE 本期目录
Development of a combined approach for improvement and optimization of karanja biodiesel using response surface methodology and genetic algorithm
Development of a combined approach for improvement and optimization of karanja biodiesel using response surface methodology and genetic algorithm
Sunil DHINGRA1(), Gian BHUSHAN2, Kashyap Kumar DUBEY3
1. University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra 136119, India; 2. National Institute of Technology, Kurukshetra 136119, India; 3. University Institute of Engineering and Technology, Maharshi Dayanand University, Rohtak 124001, India
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Abstract

This paper described the production of karanja biodiesel using response surface methodology (RSM) and genetic algorithm (GA). The optimum combination of reaction variables were analyzed for maximizing the biodiesel yield. The yield obtained by the RSM was 65% whereas the predicted value was 70%. The mathematical regression model proposed from the RSM was coupled with the GA. By using this technique, 90% of the yield was obtained at a molar ratio of 38, a reaction time of 8 hours, a reaction temperature of 40 oC, a catalyst concentration of 2% oil, and a mixing speed of 707 r/min. The yield produced was closer to the predicted value of 94.2093%. Hence, 25% of the improvement in the biodiesel yield was reported. Moreover the different properties of karanja biodiesel were found closer to the American Society for Testing & Materials (ASTM) standard of biodiesel.

Key wordsoptimization of karanja biodiesel    genetic algorithm (GA)    response surface methodology (RSM)    percentage improvement in the biodiesel yield    properties of biodiesel
收稿日期: 2013-03-16      出版日期: 2013-12-05
Corresponding Author(s): DHINGRA Sunil,Email:pecdhingra@gmail.com   
 引用本文:   
. Development of a combined approach for improvement and optimization of karanja biodiesel using response surface methodology and genetic algorithm[J]. Frontiers in Energy, 2013, 7(4): 495-505.
Sunil DHINGRA, Gian BHUSHAN, Kashyap Kumar DUBEY. Development of a combined approach for improvement and optimization of karanja biodiesel using response surface methodology and genetic algorithm. Front Energ, 2013, 7(4): 495-505.
 链接本文:  
https://academic.hep.com.cn/fie/CN/10.1007/s11708-013-0267-5
https://academic.hep.com.cn/fie/CN/Y2013/V7/I4/495
S.No.VariablesConstraints
1.Molar ratio6<X1<36
2.Reaction time/h5.5<X2<11.5
3.Reaction temperature/°C35<X3<255
4.Catalyst (wt)/% concentration1.5<X4<15.5
5.Mixing speed/(r·min-1)75<X5<755
Tab.1  
(-2)(-1)(0)(+1)(+2)
Molar ratio614223038
Reaction time5.578.81011.5
Reaction temperature3590145200255
Catalyst concentration1.558.51215.5
Mixing speed75250425600775
Tab.2  
Exp. No.TypeMolar ratioReaction time/hTemperature/ oCCatalystconc./ %Mixing speed/(r·min-1)Biodiesel yield/%
1Fact-1-1-1-1150
2Fact1-1-1-1-158
3Fact-11-1-1-160
4Fact11-1-1165
5Fact-1-11-1-148
6Fact1-11-1160
7Fact-111-1164
8Fact111-1-145
9Fact-1-1-11-162
10Fact1-1-11165
11Fact-11-11148
12Fact11-11-144
13Fact-1-111165
14Fact1-111-155
15Fact-1111-165
16Fact1111150
17Axial-2000050
18Axial2000055
19Axial0-200050
20Axial0200062
21Axial00-20070
22Axial0020070
23Axial000-2058
24Axial0002055
25Axial0000-258
26Axial0000270
27Center0000055
28Center0000062
29Center0000055
30Center0000060
31Center0000060
32Center0000060
Tab.3  
SourceSum of squaresDF a)Mean squareF valueProb.>F b)(P-value)
Mean1.074×10511.074×105
Linear126.00525.200.450.8128
2F1809.501080.951.960.1118
Quadratic415.51583.103.700.0328Suggested
Cubic147.50529.501.780.2508Aliased
Residual99.36616.56
Total1.090×105323406.69
Tab.4  
Sum of squaresDFMean squareF valueProb.>F(P-value)
Model1351.012067.553.010.0321Significant
X14.1714.170.190.6749
X20.1710.177.427×1030.9329
X30.00010.0000.0001.0000
X40.1710.177.427×1030.9329
X5121.501121.505.410.0401
X12141.091141.096.290.0291
X2250.97150.972.270.1600
X32139.641139.646.220.0298
X4241.76141.761.860.1998
X5213.64113.640.610.4521
X1X2132.251132.255.890.0336
X1X3121.001121.005.390.0404
X1X464.00164.002.850.1194
X1X5132.251132.255.890.0336
X2X312.25112.250.550.4755
X2X4210.251210.259.370.0108
X2 X51.0011.000.0450.8367
X3X464.00164.002.850.1194
X3X530.25130.251.350.2702
X4X542.25142.251.880.1974
Residual246.861122.44
Lack of fit203.53633.923.910.0779Not significant
Pure error43.3358.67
Cor total1597.8831
Tab.5  
Fig.1  
Fig.2  
Fig.3  
Fig.4  
Fig.5  
Fig.6  
Fig.7  
ParameterValue
Population size5000
Crossover functionTwo point
Mutation functionUniform
Elite count1
Cross over fraction0.9
Mutation fraction0.01
No. of generations20
Tab.6  
Fig.8  
Fig.9  
Molar ratioReaction time/hTemperature/ °CCatalyst concentration/%Mixing speed/(r·min-1)Biodiesel (predicted)/%Yield actualPercentage improvement/%
Recommendation using GA38840270794.29025
Response surface methodology design29.458.990.35.06595.907065
Tab.7  
PropertyKaranja oilKaranja ethyl esterASTM standards
Kinematic viscosity/cst a)27.854.371.9-6.0
Calorific value/(J·g-1)410004213339000-43000
Cetane no.564847
Density/(kg·m-3)870883850-879
Cloud point/ oC414.65-12
Pour point/ oC3.85.13-5
Flash point/ oC205126130
Specific gravity0.9250.900.85-0.94
Iodine value8610585-115
Saponification value194176185-180
Moisture content/%0.090.060.05% max
Peroxide value1.941.60-
Sulphur content/%0.1NIL15×10-6 max
Tab.8  
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