EXPERIMENTAL STUDY OF BIOMASS STOVE PORTABLE WITH AND WITHOUT FIN WHICH BRIQUETTES FUEL FROM CORNCOB

Syamsuri and Suheni
Department of Mechanical Engineering, Adhi Tama Institute of Technology Surabaya, Indonesia
E-Mail: [email protected]

ABSTRACT
The increase in energy demand caused by population growth and resource depletion of oil reserves as well as the
problems of emissions from fossil fuels put pressure on every country, especially Indonesia. Briquettes of corncob were one of the alternatives. In addition replaced the firewood, they also did not potentially damage the ecology of the forest and could replace fossil fuel reserves that were running low. Water boiling test was used to determine the performance of a portable stove with and without fin. Inside the stove there were 3 pots: pot 1 contained egg, pot 2 contained of rice, and pot 3 was vegetables. This study was obtained for the power of furnace for different diameter of briquette 3/4 “, 1” and 1.5” without fins was equal to 0.87 kW, 1.12 kW and 1.57 kW, respectively. Efficiency 17.58%, 19.7%, and 23.15%. While the furnace with diameter briquette 3/4 “, 1” and 1.5” using fins obtained the power 0.98 kW, 1.32 kW and 1.96 KW. Efficiency 14.84%, 20.91% and 25.27%. The fastest cooking time was gained for the finned pan with diameter of briquettes 1.5” over 20 minutes.

Keywords: briquettes, corncob, portable furnaces fins and without fins.

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