Effects of the Revolution Speed on Yield of Crude Jatropha Oil from the Jatropha Squeezing Machine
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Abstract
The performance of jatropha squeezing machine was evaluated at National Agricultural Machinery Center (NAMC), Kasetsart University, Kamphaeng Saen Campus, Thailand during 2011-2012. This model of jatropha squeezing machine was designed and fabricated by National Metal and Materials Technology Center (MTEC), Thailand. The trial was conducted using three revolution speeds at 13.3, 20 and 30 rpm, respectively. Dried jatropha seed samples have been prepared with 10 kg of each with three replications. Significant variables of the experiment were discussed. The performance of the squeezing machine has been proved to be unsatisfactory done at high revolution speed, resulted in high oil content left in jatropha seedcake. On the other hand, the capacity of the machine increased under high revolution speed due to the typical design of the squeezing machine, and the significant variable of this specific experiment.
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