سپهر رستمي

Market share of biofuels in suppling world energy demand are increasing day by day. One of these biofuels is biodiesel which can be produced from vegetable oil, for example oil of moringa oleifera seeds. Moringa oleifera is a tree proper for cultivating in sub-tropical climate of Iran which with cultivating it in one hectre, you can produce more than 3.8 ton of vegetable oil. Prerequisite of supply chain’s tactical planning is detection of suitable locations for establishing different facilities in supply chain containing farms, pre-processing & oil extraction facilities, biorefinearies, and fuel holding centers which is done by using Geographical Information System (GIS). Also, we must have a forecast of monthly diesel demand in demand ceneters that is done by using classical multiplicative model of time series. In tactical planning we want to determine the optimal level of production, inventory & transportation in each period of time between facilities of supply chain based on problem assumpsions. Plus, preventing environmental damages as much as possible has a lot of importance for us and for that reason we use Life Cycle Assessment (LCA) on supply chain, we seek eva‎luation of environmental impacts of establishment, production, inventory holding and transportation in supply chain. Mathematical model of problem contains two objective functions of maximum economic Profit and minimum Environmental Impact and we use epsilon constraint method to find optimum level of production, inventory and transportion for all amounts of environmental damage. Among costs, greatest costs in order belong to establishment, production, transportation and inventory holding and among environmental impacts greatest impact in order belong to establishment, production, inventory holding and transportation. In this research, we found out 8 provinces of Iran have proper requirements for cultivating moringa oleifera and provinces of Golestan, Ilam and Khozestan have great potential for production of moringa oleifera. Results of presented research shows that biodiesel derived from moringa oleifera oil is 24.78% cheaper and 18.02% cleaner compared to diesel.

بهينه‌سازي زنجيره تامين زيست ديزل , سيستم اطلاعات جغرافيايي , سري‌هاي زماني , ارزيابي چرخه عمر , گز روغني

Optimization of biodiesel supply chain , Geographical Information System (GIS) , Demand forecast , Life Cycle Assessment (LCA) , moringa oleifera

Sepehr Rostami

Mohammad Mahdavi mazdeh