For existing operation optimisation model of cold end system in thermal power plants

the inlet circulating water temperature of condenser is usually regarded as a constant value

if the cold end system is a circulatory water supply

however

the influence of cooling tower and climatic condition has to be considered. In order to improve the operation optimization model of the cold end system

the heat and mass transfer models for saturated air and unsaturated air. as well as the model for ventilation rate in the cooling tower have been established

and a heat transfer model in the condenser being developed on the basis of simplifying analysis of the heat transfer process in condenser. The established models are mutually coupled

after finding solution of the simutanuous equation

the temperature parameters at various points in the cold end system corresponding to the condenser load

circulating water flow rate

and environmental conditions can be achieved for guiding optimal operation of the cold end system.