A case study on Bio fuel Stove Technology:

Jatropha as a bio fuel

BY:

Ashok YadavM.Sc. Env. Science

Golden Gate Int’l College

Kathmandu, Nepal http://www.goldengate.edu.np/12/11/2012 1

INTRODUCTION/BACKGROUND

• Jatropha curcas

• Plant oil is a promising alternative source

• In Nepal, the most well-known liquid cooking fuel is kerosene

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PHYSICAL PROPERTIES

Jatropha

• Viscosity:

High

• Ignition Temperature:

340°C

Kerosene

Low

50-55°C

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OBJECTIVES

To determine the compatibility of pure jatropha oil for burning as a bio-fuel

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METHODOLOGY

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TECHNOLOGY

Two Types Of Stove Burner

• VAPOUR JET BURNER

• WICK BURNER

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DESIGNS OF STOVES USINGJATROPHA

• Seeds, Kernels

• Jatropha oil in pressure stove

• Jatropha oil in wick stove

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MODIFICATIONS

• Round wick of 6.3 to 6.5 mm placed in a loosely fitting tube (tube diameter = wick +1mm)

• Length of wick holder cut to make 4.5 cm (from oil reservoir to fire zone)

• Soaking the wick

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SPECIFICATIONS OF MODIFIED JATROPHA WICK STOVE

• Fuel tank: 1.5 L

• With exposed multi wick burner mechanism

• 10 cotton woven wicks each of diameter 5 mm

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RESULT

• The fuel tend to transport very finely up to <5 cm, once it cross 5 cm it got slow and at 7 cm there was almost no fuel

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CONCLUSION

Pure jatropha can be used as fuel in stove technology with out blending any percentage

of kerosene.

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References

• Balázs Opper, Péter Németh, Péter Engelmann, “Calcium is required for coelomocyte activation in earthworms, Molecular Immunology”, Volume 47, Issues 11–12, July 2010, Pages 2047-2056, ISSN 0161-5890, 10.1016/j.molimm.2010.04.008.

• Veigas, 2007, Modifications of Existing technology

• Journal of the Institute of Engineering, Vol. 7, No. 1, pp. 1-5

• LIDE and FREDRIKSE, 1995, Kollar et al., 1993

• Curcas oil (Jatropha curcas L.): A possible fuel", G. Martin and A. Mayeux; Agritrop, vol. 9 no. 2,1985

• Stumpf, E. & Mühlbauer, W. "Plant Oil Cooking Stove for Developing Countries“

• Institute for Agricultural Engineering in the Tropics and Subtropics "Plant oil as cooking fuel: development of a household cooking stove for tropical and subtropical countries

• Pramanik, 2003; Bozbas, 2005

• Demirbas, 2003

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THANK YOU !

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