Performance Evaluation of a Combined Heat and Power System with Stirling Engine for Residential Applications

摘要

A combined heating and power (CHP) system with a Stirling engine for building applications has been proposed in the present work. The use of these systems in building applications will be more common if they have significant advantages from the viewpoints of the pollution emission and operational cost in comparison with the other similar systems. The Stirling engine was modeled with consideration of different losses of its components. In addition, the effect of Stirling engine speed on efficiency, carbon dioxide emission, annual tax on carbon dioxide emissions and operational cost was analyzed. The results showed that the CHP system at low rotational speeds had better performance than other rotational speeds. Furthermore, the CHP system could achieve 900 $ reduction in annual costs of CO(2)tax compared to the conventional system during operation.