Structure Optimization And Flow Field Simulatiom Of Wind Collecting Hood Based On Wind And Solar Integrated Power Generation

Solar or wind power generation,generally according to their own system of independent work,a separated wind power or photovoltaic power generation system cannot be used together with the two resources.In order to achieve the comprehensive utilization of wind energy and solar energy,a kind of scenery integrated power generation system is designed out,which combines wind power generation and photovoltaic power generation,organically to achieve hybrid power generation.Scenery integrated power generation system uses butterfly-type rotating parabolic surface of the wind hood,it not only adopts wind accumulation of wind power generation,but also uses the solar energy concentrating power generation,the whole performance is pretty good.Designing of the structure size of the wind-blown hood.The outer opening diameter of the fan hood is 1500mm,6 groups of focal lengths are selected,which are 200mm,300mm,400mm,500mm,600mm and 700mm respectively.The inner opening diameter is 7 groups,which are 400mm,500mm,600mm,700mm,800mm,900mm and 1000mm respectively.42 groups of different sizes of poly wind hoods are established,and sets up the flow field of the wind hood and the flow field of the fan,using FLUENT to simulate and analyze the internal flow field,and compares with four turbulence models,which the SSTk-ω model is suitable for the numerical simulation of two flow fields.The results show that the power of concentrated light generation corresponds to the power value of concentrated light generation when the structure size of concentrated light hood(concentrated wind hood)changes,and the result shows that the concentrated power generation decreases with the increasing of the opening diameter of the condenser hood(fan hood).The performance of the windshield structure is evaluated by the total daily power generation of the wind and light integrated power generation system.Taking the Erenhot area in Inner Mongolia as an example,the total daily power generation of the integrated wind and light system is the largest when the focal length is 400mm and the inner opening diameter is 800mm.which is 3141 W·h.It is 35.9%and 25.3%higher than the daily power generation of the common fan at the same external opening diameter of 2310 W·h and the daily power generation of the internal concentrating power generation system without internal opening of 2508 W·h.The total daily power generation of the system has increased significantly.After adding the fan,the power generation of the wind fan is simulated,and the power is calculated according to the relationship of the torque and the speed.The total daily power generation of the integrated wind and light system in one day is calculated to be 2880 W · h.At the same time,the power values of the theoretical converge-wind generator and the converge-wind fan are compared under different incoming wind speeds.The simulated power generation power of the wind turbine generator and the theoretical wind energy utilization error under the corresponding size are within the allowable range.The numerical simulation method is effective and.can be used as a reference for designing an integrated wind power generation system.