应用流体网络理论求解热力系统流体网络模型的探索

The Exploration of Applying the Fluid Network Theory to Solve the Fluid Network Model of Thermodynamic System

热力系统分析需要知道工质的质量流量和各个计算节点的压力分布。为获得热力系统流体网络内工质质量流量和压力分布情况,根据流体网络理论思想,建立了热力系统的流体网络模型。该模型在合理假设基础上,将热力系统流体网络比拟为复杂直流电路,从而将基尔霍夫电压、电流定律引入热力系统流体网络模型的计算,使热力系统流体网络计算变得简洁、准确。计算结果验证了模型可靠,建模方法可行。

Pressure and mass flow distribution of the fluid network are required for thermodynamic system analysis. In order to obtain the data, the fluid network model of thermodynamic system was established according to the Fluid Network Theory. The fluid network of thermodynamic system in the model was compared to complex DC circuits, based on reasonable assumptions, and Kirchboff voltage and current law were introduced into the calculation of the fluid network model of thermodynamic system, that made the calculation of the fluid network model of thermodynamic system become simple and accurate. The results showed that the model is reliable and the modeling method is feasible.