Abstract
The Life Cycle Impact Assessment methodology is applied to specific co-generation energy systems consisting of gas turbines or gas engines, and then used to minimize the CO_2 emissions, environmental impacts and running costs during system operation. These results are compared with those of non-combined heat and power systems. The energy demands of various facilities, including hotels, hospitals, office buildings and condominiums, are analyzed. The energy balance conditions for each energy demand are formulated for the co-generation system and for the respective system components. The algorithms applied here are the well-known simplex and branch-bound methods to seek optimized eco-operation solutions from objective functions in linear programming. In this paper, an approach to select the type, capacity and configuration of co-generation systems suitable for the energy demand is proposed, and the advantages and disadvantages for the introduction of co-generation systems are examined from ecologically and economically conscious standpoints.
