Biobjective optimization using environmental and economic functions in utility plants

Abstract

Environmental and economic objective functions are used simultaneously to select the operating conditions of a steam and power plant. Different methodologies to solve bi objective optimization problems were implemented successfully. The life cycle potential environmental impact and the operating cost of the utility plant are minimized simultaneously. A methodology is presented to estimate the potential environmental impacts considering the most important life cycle stages associated with imported electricity and natural gas in the utility plant. Mixed Integer Non Linear bi objective problems are formulated and different strategies are implemented and successfully solved in GAMS. © 2010 Elsevier B.V. All rights reserved.