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Performance/Noise Optimization of Centrifugal Fan Using Response Surface Method

반응표면법을 이용한 원심팬 성능/소음 최적화

  • Received : 2016.01.23
  • Accepted : 2016.12.23
  • Published : 2017.03.01

Abstract

In this study, centrifugal fan blades used to circulate cold air inside a household refrigerator were optimized to achieve high performance and low noise by using the response surface method, which is frequently employed as an optimization algorithm when multiple independent variables affect one dependent variable. The inlet and outlet blade angles, and the inner radius, were selected as the independent variables. First, the fan blades were optimized to achieve the maximum volume flow rate. Based on this result, a prototype fan blade was manufactured using a 3-D printer. The measured P-Q curves confirmed the increased volume flow rate of the proposed fan. Then, the rotation speed of the new fan was decreased to match the P-Q curve of the existing fan. It was found that a noise reduction of 1.7 dBA could be achieved using the new fan at the same volume flow rate.

Keywords

Centrifugal Fan;Response Surface Method;Aerodynamic Noise

Acknowledgement

Supported by : 한국연구재단

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