PROJECT DETAILS
We carried out CFD analysis for the HVAC Jet Nozzle system proposed in the Wind turbine blade molding division at the LM wind power blade manufacturing plant in Bangalore. The blade manufacturing plant consists of four molding bays; for each bay, cold air will be supplied through 2 AHU units. Each AHU unit is connected to 40 Jet Nozzles. The main objective of this HVAC CFD analysis is to analyze airflow, air-impinging angle, and the flow regime. The flow regime plays a significant role from Health and safety perspective. We have explained our results to the Management of LM Wind power and recommended suggestions for Improvement.
The 3D CAD model has been created to the required specifications for CFD analysis, utilizing the 2D Autocad drawings supplied by the Client. PTC Creo CAD software was employed for the generation of the 3D CAD model.
A CFD mesh has been developed for the simplified 3D CAD model mentioned earlier. This mesh consists of Poly Hex core elements, featuring suitable resolution in regions with high gradients. The overall cell count of the mesh is around 20 million, and it meets optimal quality standards, which contributed to achieving a well-converged solution.
CFD analysis is performed by adjusting the heights of the supply and return air ducts as per the Client's specifications. The flow is considered to be three-dimensional, steady-state, viscous, incompressible, and isothermal.
The flow field within the wind turbine molding bay is uniform, except for the area close to the nozzles. The highest velocity observed in the molding bay falls within the laminar flow regime, in accordance with the specified requirements.
The flow field within the wind turbine molding bay is uniform, except for the area close to the nozzles. The highest velocity observed in the molding bay falls within the laminar flow regime, in accordance with the specified requirements.
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