improvement of performance of a si engine using e100

7/24/2019 Improvement of performance of a SI engine using E100

1/8

44 13 2 2554

SI (E100) E85Improvement on the Performance of Spark Ignition Engine

using Ethanol (E100) and Gasohol E85 Fuel

* . .34190

*Email: [email protected]

95 (E100) E85 91 4

K230 232 6.4:1 3 2 95 (E100) E85

50 91 1,800, 2,100, 2,400, 2,700, 3,000 3,300 95 (E100) E85

95 (E100) E85

: (E100) E85Abstract

This research aimed to investigate the modification and performance of two spark ignition engines, oneusing 95 ethanol as the sole fuel (E100) and the other using ethanolgasoline blend (E85). Thesewere compared with an engine fueled by gasoline 91 that acted as a control. The engines used were 4-stroke,gasoline, single cylinder, model K 230 (Siam Kubota) engines, each with a compression ratio of 6.4:1 and acarburetor fuel feeding system. The two experimental engines were modified by changing the main jet sizes inthe carburetors and locking the air valves at 50 percent opening. The brake torque, brake power, and brakespecific fuel consumptions at 1800, 2100, 2400, 2700, 3000, and 3,300 rpm were measured. It was found that

the engines using 95 ethanol as the sole fuel (E100) and ethanolgasoline blend E85 with the properair-fuel ratios achieved brake torque and power close to the normal gasoline engine. However, the brakespecific fuel consumption was higher than that of the gasoline engine. It may be concluded that the 95 ethanol (E100) and the ethanolgasoline blend E85 can be used as a substitute fuel for smallengines, but that the engines require correct modifications.


2/8

13 2 2554 45

Keywords:Performance of engine, Ethanol (E100), Ethanolgasoline blend (E85)

1.

MTBE (Methyl Tertiary-Butyl

Ether) 95 1 2549 3 MTBE 95 91 2554 [2] [11]

99.5 95

[15]

[16, 10] [3] E85 15 85 E85 95 91

[7]

1. E85

95 91 (Low heatingvalue) 30

2. (Heat ofvaporization) 3

[1]

85 (E85)

95 (E100) 91

2. 2.1

Siam Kubota K230

1 3 1 91 2 3 95 (E100) E85 2


3/8

46 13 2 2554

Stoichiometric air / fuel ratio A/F 14.6 95 8.7 E85 10

E85

[8]

E85 2 50 1 (Main

jet) 0.71

0.85 E100 1.0 2

1[5]

Name and model of

ngine Siam Kubota, k230General details Single cylinder, SI engine, air cooled

6.4:1

74 mm.54 mm.

Compression ratio

BoreStroke

displacement 232 cc.

2 ([4, 14, 15])

1 2

Characteristic of fuel Gasoline Gasohol (E85) Ethanol (E100)Chemical FormulaSpecific Gravity

Net heating value (MJ/l)

C8.26H15.50.72 - 0.78

32.2

CH2.822O0.4250.70 - 0.79

23.9

C2H6.16O1.080.8120.2

Research Octane Number 92 - 98 95.0 min 106Motor Octane NumberStoichiometric A/F ratio

80-9014.6

85.0 min10

878.7


4/8

13 2 2554 47

2.2 MT 501

ENGINE DYNAMOMETER 3 1,0007,500

10 TRANSTRONIC TA SHEAR BEAM

3

4

2.3

()

board 80

20

(Air consumption) (Air box) x 220 x 350 (Orifice) 30 kg/s

4


5/8

48 13 2 2554

1 5 0 0 1 8 0 0 2 1 0 0 2 4 0 0 2 7 0 0 3 0 0 0 3 3 0 0 3 6 0 0

0

1

2

3

4

E 0

E 8 5 - M 1

E 8 5 - M 2

E 1 0 0

BrakePower(kW

)

E n g i n e S p e e d ( r p m )

4 3

1. 91 (E0)2. E85

50 (E85-M1)

3. E85 (E85-M2)

4. 95 E100 (E100)

2,000 10

1,800, 2,100,2,400, 2,700, 3,000 3,300 1 2

60x1000TN2

Pb

= (1)

Pb (kW)T (Nm)

N (rpm)

PbnconsumptioFuel

BSFC = (2)

BSFC

(kg/kw.h)Fuel consumption

(kg/h)Pb (kW)

3.

4 91 E85 95

5


6/8

13 2 2554 49

15 0 0 1 80 0 2 10 0 2 4 00 2 7 00 3 0 0 0 33 0 0 3 60 0

6

7

8

9

1 0

1 1

1 2

Torque(N.m)

E n g i n e S p e e d ( rp m )

E 0

E 8 5 -M1

E 8 5 -M2

E 1 0 0

1 5 0 0 1 8 00 2 1 0 0 2 4 0 0 27 0 0 3 00 0 33 0 0 3 60 0

0 .0

0 .2

0 .4

0 .6

0 .8

E 0

E 8 5 -M1

E 8 5 -M2

E 1 0 0

BSFC(kg/kW.h)

E n g i n e S p e e d ( r p m )

6

7

5 91

E85 E100 50

91 E85 E100

6 91 E85 95 E100 50

91 2,700

7 (BSFC)


7/8

50 13 2 2554

95 (E100) E85 50 91

95 (E100) E85 91

E85 95

[13], [9]

4. 4 Siam

Kubota K230 3 91 E85 95(E100) 50

E85

50 91 E85 95 (E100) 91 6.42 5.34

E85 50

91 E85 95 (E100) 6.84

E85 50 91 47.58 28.49 95(E100) 91 53.22

E85

91 16 13 ( 2553)

9118 / E85 13 / 15.50 / [12], [6]

91


8/8

13 2 2554 51

[1] . 2551

.

22

15-17. 2551.[2] , ,

.2551. . :

[3] .2547. SI.

18 - 18-20 2547.[4] , ,

.2546. . 17 15 17 2546.

[5] , K150, K230.

[6] Bang-Quan He, Jian-Xin Wang, Ji-Ming Hao,Xiao-Guang Yan, Jian-Hua Xiao. 2003. A study onemission characteristics of an EFI engine withethanol blended gasoline fuels AtmosphericEnvironment.37 pp. 949957

[7] Chan-Wei Wu, Rong-Horng Chen, Jen-Yung Puand Ta-Hui Lin. 2004. The influence of air fuel ratio on engine performance and pollutantemission of an SI engine using ethanolgasoline-blende fuels Atmospheric

Environment.38 pp. 70937100[8] Fikret Yuksel and Bedri Yuksel. 2004. The use of

ethanolgasoline blend as a fuel in an SIengine Renewable Energy. 29 pp. 11811191

[9] H. Serdar Yucesu, Adnan Sozen, Tolga Topgul,and Erol Arcaklioglu. 2007. Comparativestudy of mathematical and experimentalanalysis of spark ignition engine performanceusedethanolgasoline blend fuel. Applied

Thermal Engineering.27 pp. 358368[10] Hu seyin Serdar Yu cesu, Tolga Topgul, Can

cinar and Melih Okur. 2006. Effect ofethanolgasoline blends on engineperformance and exhaust emissions indifferent compression ratios Applied ThermalEngineering26 pp. 2272227

[11] M. Al-Hasan. 2003. Effect of ethanolunleadedgasoline blends on engine performance andexhaust emission.

Energy Conversion and

Management. 44 pp. 15471561[12] M.Bahattin Celikl. 2008. Experimentaldetermination of suitable ethanolgasolineblend rate at high compression ratioforgasoline engine. Applied ThermalEngineering.28 pp. 396404

[13] Mustafa Koc, Yakup Sekmen, Tolga TopgulandHuseyin Serdar Yucesu. 2009. Theeffects of ethanolunleaded gasoline blendson engine performance and exhaust

emissions in aspark-ignition engine.Renewable Energy.34 pp. 21012106

[14] Ratanavalee Inochanon. 2008. E85: FutureGasoline Substitute Fuel Technology.Petroleum Products and Alternative FuelsResearch Department

[15] Rodrigo C. Costa and Jose R. Sodre. 2010.Hydrous ethanol vs. gasoline-ethanolblend:Engine performance and emissionsFuel.89 pp. 287293

[16] Wei-Dong Hsieh, Rong-Hong Chen, Tsung-LinWu and Ta-Hui Lin. 2002. Engineperformance and pollutant emission of an SIengine using ethanolgasoline blended fuelsAtmospheric Environment. 36 pp. 403410

improvement of performance of a si engine using e100

Documents