Modern Research in Decision Making

Designing the supply chain of biofuels from municipal sewage waste with the aim of optimizing the profit of bio-refinery with a combined approach of system dynamics and mathematical optimization (Case study: sewage treatment plant in the south of Teh

Articles in Press

Document Type : Original Article

Authors

Ali Nekouee 1
MohammadReza Armanmehr 2
Mohammad Rostami 2

1 Ma of Economic Systems Planning, Department of Industrial Engineering and Management, Shahrood University of Technology, Shahrood, Iran

2 Assistant Professor, Department of Industrial Engineering and Management, Shahrood University of Technology, Shahrood, Iran

Abstract
Energy is one of the basic needs of human life. Production, distribution and optimal consumption of energy have always been one of the basic questions in economics and planning. Energy is one of the main factors of economic growth and development of countries. Human's ever-increasing demand for all kinds of available energy and non-renewable resources to achieve economic development has always faced an increase in environmental pollution and various diseases for human life. The aim of this study is to model the supply chain of biofuels using urban sewage waste in Iran. For this purpose, the combination of system dynamics modeling method and integer mathematical programming model has been used. The period studied in this research is 1388-1397 and its simulation is considered until 1410. The assumptions considered in this research are: with the increase in the payment of subsidies to biofuels, the price of biofuel will decrease; with the increase in the conversion rate of sewage waste into fuel, the price of biofuel will decrease; and with the increase in the price of biomass, Biomass production capacity increases. Also, by doubling the price of green fuel, the production capacity of green fuel increases by 2.9 percent. The results of the simulation are the design of an optimal supply chain of urban biomass resources and also the maximization of the profit of the country's biological refineries.

Keywords

renewable energy
urban sewage waste
biofuels
system dynamics

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