Comparative Studies on Solar Combisystem by Different Auxiliary Heat Sources

Abstract

This paper proposes a solar combisystem model with biomass boiler as its auxiliary heat source. Taking specific constructions of towns into consideration, solar combisystems with four different auxiliary heat sources——gas boiler, electric boiler, coal boiler and biomass boiler are compared from the aspects of comprehensive energy price, CO2 emissions and social benefits. The results show that, compared with the solar combisystems with conventional energy boilers as their auxiliary heat sources, the system with biomass boiler as its auxiliary heat source has favorable economic, social and environmental benefits.