Simulation Study on Evaporation Region of Pure Water Droplet Group in Spray Cooling System
In order to avoid the impact of droplets falling on the surface of equipment and human body in the spray cooling system and affecting the process and thermal comfort of human body,it is necessary to study the problem of evaporation region of pure water droplet group.In this paper,the computational fluid dynamics(CFD)method is used to study the influence of different heat source temperature and initial droplet size on the evaporation region of the droplet group under the action of the spray cooling system.The indoor temperature distribution and droplet size distribution are analyzed,and the influence of indoor heat source temperature and initial droplet size on the height of the evaporation region is discussed.The results show that with the increase of heat source temperature,the inhibition effect of thermal plume on spray jet is enhanced,and the evaporation region of droplet group increases accordingly.When the initial droplet size increases,the evaporation region of the droplet group decreases,and the temperature in the range of the spray jet increases.The height of droplet group evaporation domain increases linearly with the increase of heat source temperature,and decreases linearly with the increase of the initial droplet size.However,when the heat source temperature is greater than 400℃and the initial droplet size is greater than 60μm,it has little effect on the height of droplet group evaporation region.
Spray cooling systemHeat source temperatureInitial droplet sizeEvaporation region
万方数据
维普
