The invention relates to a
thermal network dynamic simulation method and device, and belongs to the technical field of comprehensive
energy service. The method comprises the steps: establishing a hydraulic working condition model and a thermal working condition model of a
thermal network; in a pipeline
characteristic equation of the hydraulic working condition model, enabling the density, which reflects the influence of the physical parameter, on the hydraulic working condition in the state that the temperature of a
heat supply network medium changes, to serve as a variable for
processing; inan
energy equation of the thermal working condition model, taking the density and the
specific heat capacity, which reflects the influence of the two
physical property parameters on the thermal working condition in the state that the temperature of a
heat supply network medium changes, as variables,. According to the invention, the temperature results calculated by the hydraulic working conditionmodel and the thermal working condition model are closer to the actual temperature, the error is small, and the reliability is high; through the
specific heat capacity serving as the variable quantityin the
energy equation, the
energy storage effect of the stock working medium in the
pipe network in the energy conveying process of the
heat supply pipe network is fully considered, and the dynamiccharacteristics in the energy conveying process of the heat supply
pipe network can be effectively reflected.