BIODIESEL PRODUCTION FROM WASTE FISH FOR ZERO WASTE CONCEPT IN REMOTE AREA OF EASTERN OF JAVA, INDONESIA
DOI:
https://doi.org/10.11113/jt.v78.8210Keywords:
Biodiesel, fish oil, exergy, energy efficiency, waste fishAbstract
Increasing demand fossil fuel in the world may have a good impact on biodiesel demand. Other than produced from plant oil, biodiesel can also be produced from waste fish and fish wastes. Extracted oil from both of fish waste may be turned into biodiesel to be used for ship’s diesel engine or other purposes.  The objective of this study is to analyze the energetic efficiency in the production of fish wastes as feedstock for the production of biodiesel in Indonesia. The biodiesel production chain is analyzed to quantify the net yield of energy and exergy and their respective degree of efficiency. The energy consumption calculation for the biodiesel production system is assessed as the sum of energy consumption in different stages in its production chain. Energy efficiency in biodiesel production can be assessed using an index for technical, economic and environmental sustainability analysis. The fish oil was separated from fish wastes using a specially designed oil extraction machine. Both direct and indirect energy and exergy flows are important parameters for evaluating the energetic efficiency of biodiesel. Further, the analysis shows that it is necessary to find ways to improve the exergy efficiency without decreasing the energy efficiency during production of biodiesel from waste fish. Â
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