For the district central heating system, combined with the characteristics of user heating pattern, the energy consumption of building heating can be significantly reduced by adopting management and control in different time and areas. Taking the district heating system of a university comprehensive buildings group as the research object, this paper established the system model based on one-dimensional flow simulation software Flowmaster. Fully considering the different functions of buildings, taking a working day in heating season as an example, the energy saving potential of the heating system was analyzed by using management and control in different time and areas with working and non-working periods. The results show that based on the difference of functions and heating patterns of different buildings, the energy saving rate of the heating system is 21.14% by using the adjustment and control strategy in different time and areas and the controlling different indoor temperature values of users rooms. The results were compared by setting the dormitory buildings as 22 ℃ , the teaching buildings as 22℃/13℃, the research buildings as 22℃ /16 ℃ respectively and setting all of the indoor temperature control values of users as 22℃. Therefore, for comprehensive buildings group for multi-functional buildings, the management and control strategy in different time and areas based on the difference of heating patterns is of great significance to district heating energy saving.
Keywords Comprehensive buildings group, Heating pattern, Indifferent time and areas, Operation simulation with Flow master, Energy saving potential