Evaluation of a Distributed Energy System Combined With Heating, Cooling and Power Generation Through Multi-Criteria Optimization

In this paper, multi-criteria analysis and thermo-economic optimization approach is applied to the analysis of a distributed energy system in an urban residential area in Beijing. System Net Present Value (NPV) is taken as the objective to be maximized with simultaneous consideration of the thermodynamic, economic and emission criteria with regarding to CO2 and NOx emissions. Technologies as gas turbine, internal combustion engine, absorption chiller and gas boiler are included in the plant superstructure. For comparison, case with gas boilers for heating, decentralized electric chillers for cooling and all power imported from grids is chosen as the reference.Copyright © 2003 by ASME