Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Performance Characteristics of a Turbo Blower Having the Various Shapes of a Volute Casing

볼류트 케이싱 형상에 따른 터보블로어 성능특성 고찰

  • 장춘만 (한국건설기술연구원 설비플랜트연구실) ;
  • 양상호 (삼원이앤비(주))
  • Received : 2010.05.11
  • Accepted : 2010.07.27
  • Published : 2010.09.01
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Abstract

This In this paper, we describe the performance characteristics of a turbo blower as a function of the shape of the volute casing: expansion diameter and width of the volute casing. The turbo blower considered in the present study is mainly used in a refuse collection system. The flow characteristics inside the turbo blower were analyzed by a three-dimensional Navier-Stokes solver and compared with experimental results. The distributions of pressure and efficiency obtained by numerical simulation were in good agreement with those determined experimentally. Throughout the numerical simulation of the turbo blower, the blower performance was enhanced by decreasing the local losses in the blade passage and the outlet flow. The efficiency and pressure for the design flow condition were enhanced by about 3% and 2%, respectively, compared to the efficiency and pressure of the reference blower. Detailed flow analysis was performed using the results of the numerical simulation

본 연구에서는 생활폐기물 관로이송 설비에서 사용되고 있는 터보블로어의 성능향상을 목적으로 하며, 볼류트 케이싱의 확대반경과 폭에 따른 터보블로어의 성능특성을 삼차원 나비어-스톡스 방정식을 통한 수치해석과 실험적인 방법을 적용하여 분석하였다. 수치해석을 통한 압력과 효율특성은 실험값과 잘 일치함을 확인하였다. 수치해석을 이용한 볼류트 케이싱 형상특성 연구를 통하여, 터보블로어의 성능은 임펠러 익간 및 블로어 출구의 압력손실을 줄임으로써 개선됨을 확인하였다. 본 설계변수 분석을 통하여 효율은 약 3%, 압력은 약 2% 개선할 수 있었다. 또한 수치해석 결과를 이용하여 터보블로어의 내부유동장 특성을 비교, 분석하였다.

Keywords

References

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Cited by

  1. Aerodynamic Characteristics Analysis of Small Two-Stage Turbo Blower Using CFD vol.42, pp.4, 2014, https://doi.org/10.5139/JKSAS.2014.42.4.326