Analysis of Thermodynamic Equilibrium Characteristics of City Hot Water Heating System

摘要

In order to the further analyze the impact of pipe temperature drop on the thermal characteristics of the central heating system, this study uses the method of fluid network analysis with considering the pipe temperature drop, and adds the heat exchanger model. Using the mathematical models of thermal, the pipe network thermal imbalance phenomenon was analyzed and simulated under the hydraulic balance. Meanwhile, this paper uses the quality adjustment and quantity adjustment method to realize the pipe network simulation of thermal balance. Through the comparative analysis of five kinds thermodynamic conditions pipe network characteristic, the results show that the temperature drop of the pipeline has an important influence on thermal balance and heating effect, with realizing the necessity of thermodynamic equilibrium.