THE ANALYSIS OF TRIGENERATION ENERGY SYSTEMS AND SELECTION OF THE BEST OPTION BASED ON CRITERIA OF GHG EMISSION, COST AND EFFICIENCY

Article history: Received 8.5.2012. Received in revised form 16.7.2012. Accepted 20.7.2012. The aim of this paper is to describe various models and optimisation procedures of the trigeneration systems in order to establish their advantages in terms of efficient and ecologically acceptable modes of energy transformation. Five energy models of 4 MWe are described and analysed, of which the gas engine, combined with the absorption refrigeration unit, has been found out as an optimum. The analysis showed that such a system provides the best payback period and in the same time it has the least possible environment impact. The analysis and optimisation was performed with the use of RETScreen software package.