Research on the influence of different heating strategies on energy consumption and carbon emission of a teaching building in Urumqi

Abstract

In this paper, a typical teaching building of a university in Urumqi, Xinjiang was taken as the research object. Based on the existing maintenance structure, DesignBuilder software was used to explore the differences in energy consumption and carbon emissions generated by ordinary hot water heating system, ground thermal radiation heating and electric heating under different ventilation times. The effects of intermittent heating and continuous heating on heating energy consumption and carbon emission were studied by software simulation. Conclusion On the condition of ensuring indoor thermal comfort, electric heating is suitable for teaching buildings in Urumqi city, and intermittent heating is not suitable, continuous heating should be used. The heating system with the highest indoor comfort level is the ground heat radiation heating system, and the carbon emission is the ordinary hot water heating system. When the ratio of window and wall area under electric heating increases by 5%, the total heating energy consumption and carbon emission of buildings will increase by 10.8%–16.2% in the heating season, and the heating heat load of buildings will increase by 6.4%–8.2%.

Keywords

• Energy consumption simulation
• Intermitting heating
• Window–wall ratio
• Number of indoor air changes