Modeling and optimization of waste-heat integration network for an Eco-industrial park

Abstract

Development of an eco-industrial park (EIP) has drawn attention as a promising approach seeking for the mutual benefit to the economy and environment. In recent years, the reduction of energy consumption has become a global necessity due to the high oil price and environmental regulations. In order to find energy strategies in an EIP, a framework has been developed to analyze the existing energy network and to identify energy demand and supply in the individual companies in an industrial complex. A mathematical model was developed to synthesize a waste heat utilization network, including nearby companies, communities, and waste heat utilization centers. A case study of an existing petro-chemical complex in Yeosu, South Korea showed that the total energy cost and the amount of waste heat of the region can be considerably reduced applying the suggested waste heat utilization networks. It can be concluded that the utilization of the industrial waste heat by restructuring industrial complexes in an ecological way could lead to the economic and environmental benefits due to the reduction of energy consumption. This may assist government decision-maker to make industrial policy for sustainable development.