Energy, environmental and economic dynamic performance assessment of different micro-cogeneration systems in a residential application

The comparison showed that, whatever the MCHP unit is, the proposed system allows for reducing the primary energy consumption (up to 13.4%), the carbon dioxide equivalent emissions (up to 18.9%), as well as the operating costs (up to 20.9%) with respect to the conventional system. The largest savings were obtained with the tank characterized by the lowest volume coupled with the internal combustion engines in the case of 55 °C was used as set-point temperature.