Three-dimensional topology structural modeling for a new generation district heating network

With the development of green building, the new generation district heating network includes many energy efficiency measures, such as CHP, waste heat utilization, renewable energy and thermal storage, etc.In addition to continually develop and promote energy efficiency technologies in the supply and demand sides, the district heating network linking with the both sides needs technical improvement. Compares the influences of some topology structures on heating effect, and finds that the traditional modeling method based on flat topology network is very difficult to resolve the distribution problem with multiple energy efficiency measures. Therefore, proposes an improved method based on three-dimensional irregular topology structure. Without basic circuit based on graph search, directly analyses the hydraulic and thermal condition of heating network based on the three-dimensional irregular topology structure. Presents the modeling process of this method in detail and compares it with the traditional ones.