Abstract
The environmental load of co-generation systems (CGS) is evaluated from the LCA-ESS method proposed by the authors (LCA: Life Cycle assessment, ESS: Eco-load Standardization Scheme). This ESS software has easy operation and high flexibility for different kinds of CGS. (Eco-load standardization Scheme) In the impact evaluation, three kinds of fuels of natural gas, heavy oil and coal and two types systems of gas turbine and gas engine are applied, and compared. Computer software minimizing the environmental load is built by using a combined simplex and branch-bound technique. It enables to easily evaluate from the input demand data to optimize the eco-load of CGS in a very short time. As the results, the LCA-ESS method is found to be useful to evaluate the environmental load and eco-operation scheme.
