Abstract
The ceiling fan is the most economic device to cool the residential areas and as well as commercial areas. The ceiling fan plays vital role in thermal comfort for the people in those areas. Due to recent advancement in technologies ceiling fans are become energy efficient. This paper talks about the comparison of energy efficient and changes in flow field across the user perceiving annulus radius of three different sweep size of ceiling fan. Also suggesting user to select the ceiling fan based on their flow-field requirement. It explains the flexibility of blade design and its effect on flow field. This approach also talks about the power consumption and volumetric airflow for energy efficiency. Specifically, variation from 0.9m, 1.2m and 1.4m sweep size blades considered and compared. The flow field generated by the ceiling fans are captured by Reynolds Averaged Navier-Stokes (RANS) technique. All the tree different sweep size ceiling fans are analysed through CFD. The CFD results shows that the 1.4m sweep size blade fan gives more spread and energy efficient than other type of fans.
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