ITS Surabaya, the researchers found bio-ethanol from cassava, or other high berkarbohidrat materials to replace petroleum.
"Bio-ethanol is very frugal, because one liter of oil bio-ethanol equivalent to nine liters of kerosene normal," said researcher bio-ethanol, Sri Ir Nurhatika MP in Bangkok, on Thursday.
Accompanied by Vice Rector (PR) IV ITS Surabaya, Prof. Ir Eko Budi Djatmiko, he said, the price of one liter of bio-ethanol Rp10.000, is nine liters of kerosene ranged Rp27.000 with the assumption that the price Rp3.000/liter.
"Not only that, bio-ethanol can also be made by the community, because the material making ethanol can be found in the market and ways of making it easy," he revealed.
According to him, ethanol can be made from materials which contain carbohydrates, including cassava, walur, palm oil, sugar cane, beans koro, waste know, waste bin, and so forth.
"The most ideal cassava, which is in Java, known as cassava gendruwo, because the carbohydrate level is high enough. Cassava gendruwo also contain starch (poisons) that is not feasible consumed, "he added.
How to produce, said a senior lecturer at the biology ITS Surabaya, the cassava is gendruwo pounded fine, and then cooked up a pot of porridge.
"The results are given yeast (fermentation process) and taken for 4-5 days to exit its ethanol at the rate of 90 percent. We call BE.40 with oil, "he said.
However, the rate of ethanol 90 percent, not enough to function as kerosene, the rate of ethanol required is 95 percent. Therefore, the need to be improved.
"If the rate of ethanol is below 95 percent still contain Pb (impacts), while the fuel must be free from Pb, as if there will be Pb-explode," he asserts.
To raise the rate of ethanol, he said, need to add limestone (Hala), so that ethanol will be a "clean" of Pb.
In addition, kerosene bio-ethanol is also not bersumbu, so I work with researchers ITS Engineering Machinery Ltd for the design of the stove to make bio-ethanol.
"The design of Mechanical Engineering of ITS is finally with us kerjasamakan Cooperative Manunggal Prosperous Yogyakarta, to produce a stove burner without a price Rp40.000," he said.
Therefore, oil bio-ethanol is not only economical, but also proved without a smoke.
"Maybe heating oil bio-ethanol a little time. For example, for cooking noodles, kerosene requires only normal within 10 minutes, while the stove bio-ethanol 2-3 minutes longer, "he said.
"Bio-ethanol is very frugal, because one liter of oil bio-ethanol equivalent to nine liters of kerosene normal," said researcher bio-ethanol, Sri Ir Nurhatika MP in Bangkok, on Thursday.
Accompanied by Vice Rector (PR) IV ITS Surabaya, Prof. Ir Eko Budi Djatmiko, he said, the price of one liter of bio-ethanol Rp10.000, is nine liters of kerosene ranged Rp27.000 with the assumption that the price Rp3.000/liter.
"Not only that, bio-ethanol can also be made by the community, because the material making ethanol can be found in the market and ways of making it easy," he revealed.
According to him, ethanol can be made from materials which contain carbohydrates, including cassava, walur, palm oil, sugar cane, beans koro, waste know, waste bin, and so forth.
"The most ideal cassava, which is in Java, known as cassava gendruwo, because the carbohydrate level is high enough. Cassava gendruwo also contain starch (poisons) that is not feasible consumed, "he added.
How to produce, said a senior lecturer at the biology ITS Surabaya, the cassava is gendruwo pounded fine, and then cooked up a pot of porridge.
"The results are given yeast (fermentation process) and taken for 4-5 days to exit its ethanol at the rate of 90 percent. We call BE.40 with oil, "he said.
However, the rate of ethanol 90 percent, not enough to function as kerosene, the rate of ethanol required is 95 percent. Therefore, the need to be improved.
"If the rate of ethanol is below 95 percent still contain Pb (impacts), while the fuel must be free from Pb, as if there will be Pb-explode," he asserts.
To raise the rate of ethanol, he said, need to add limestone (Hala), so that ethanol will be a "clean" of Pb.
In addition, kerosene bio-ethanol is also not bersumbu, so I work with researchers ITS Engineering Machinery Ltd for the design of the stove to make bio-ethanol.
"The design of Mechanical Engineering of ITS is finally with us kerjasamakan Cooperative Manunggal Prosperous Yogyakarta, to produce a stove burner without a price Rp40.000," he said.
Therefore, oil bio-ethanol is not only economical, but also proved without a smoke.
"Maybe heating oil bio-ethanol a little time. For example, for cooking noodles, kerosene requires only normal within 10 minutes, while the stove bio-ethanol 2-3 minutes longer, "he said.
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