Simulation of city heating and air-conditioning system

A city heating and air-conditioning system including city heating network, district heating network and distribute heating network, is given with the mode of centralize conversion-transmission network-terminal conversion-user object, heating and air-conditioning is considered as a whole. According to a certain operation-planning and the dynamic heating and cooling loads of the year, this article builds a dynamic simulation of the system's supply and demand balance and operation status. Thereafter, the article gives an analysis of the consumption of the source energy and electrical power, and the asymmetry of its loads and the energy and environment index which including of all kinds of source energy and electric power, and the quantity of the exhaust of all kind of contamination., is given. The simulation results can give fix quantify data to support the decision-making of the department of the energy, city heating and environment management. Also, the results can give guidance to the selection of the city heating and air-conditioning mode, and the operation mode of the system.