Construction and Application of Virtual Simulation System for Power Plant Boiler Experiment
For experimental teaching of the core professional course"Boiler Principles"in energy and power engineering,the university and enterprise cooperat to develop a power plant boiler virtual simulation experimental system.It includes the wind-smoke model and the steam-water model.Based on the principles of two-phase flow and heat transfer and the conservation equations of mass,energy,and momentum,the two models are constructed.The virtual experiment with variable load indicates that the thermal efficiency decreases and fuel consumption increases with the load increase.According to the radiation heat transfer principle and the calculation method for average flame temperature,it is found that the furnace heat transfer load and the furnace outlet flue gas temperature must increase synergistically,which causes an increase in exhaust temperature and heat loss,and a reduction in the thermal efficiency.In the process of analyzing experimental results,student'mind is broadened.Therefore,boiler virtual simulation experiment is an important measure to implement the cultivation of innovation ability.