Design Optimization of Ceiling Fan Blades with Nonlinear Sweep Profile

Abstract

This study pertains to the design optimization of a four-blade ceiling fan to enhance air circulation and energy efficiency. The sweep angle of the blade profile is nonlinear. The design of experiment (DOE) computational fluid dynamics (CFD) and response surface method (RSM) methods were used in parallel to find the optimal design solution. The design variables considered were inboard angle of attack, outboard angle of attack, blade sweep, and tip-chord length. Numerical simulations were conducted using steady state Reynolds-averaged Navier-Stokes (RANS) equations and the Spalart-Allmaras turbulence model. The baseline results were validated through experimental data. Subsequently, the DOE method was employed to generate the blade design which reduce the number of simulations without losing the influence of different geometric parameter interactions. The response variables studied were volume flow rate, mass flow rate, torque, and energy efficiency. The simulations exhibited that flow pattern has a distinct feature and is further classified into three groups. In the end, the optimal blade design was identified using response surface methodology (RSM).

Sensitivity Analysis and Optimization of Delta Wing Design Parameters using CFD-Based Response Surface Method

“…The DoE table is generated using the optimization software DX (Design eXplorer) by ANSYS. The results (Adeeb, Sohn, Maqsood, & Afaq, 2018) confirmed the successful application and implementation of DOE and RSM to solve industrial problems related to product design and manufacturing. In Table 3, the initial design parameters, constraint values, and objective function values has been shown.…”

Investigation of The Blade’s Sweep Size Effect On the Air Flow Field and The Energy Efficiency of the Ceiling Fan

“…There are multiple experimental and numerical studies conducted in the past by M Pushpesh Singh and Dr. Gajendra et al [1], Lagudu Bhargav et al [2], Dr. Nitin K et al [3], Mohammad et al [4], Adeeb1 et al [5], Maithilee Jadhav et al [6], Ehsan Adeeb [7], E. Adeeb [8] to study the flow field for same sweep size and increase the energy efficiency of the ceiling fan for the different international standards. The objective of this research work is to study the flow field under the fan and energy efficiency for the different blade sweep sizes of the ceiling fan.…”