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<p>Many range hoods on the market that use double-inlet Sirocco fans have significant shortcomings. This issue can be addressed by utilizing high-efficiency in-line duct fans. In this study, a commercially available canopy range hood was used as a reference unit. Two high-efficiency in-line duct fans, IL-Model(1) and IL-Model(2), were designed using professional fan design software. The target design specifications to compete with the internal Sirocco fan in the reference unit were around 22–24 CMM and 900–1100&#xa0;Pa, respectively. These two fans were produced using 3D printing. Wind tunnel tests for IL-Model(1) and IL-Model(2) showed that the maximum air flow rate differed by less than 10% compared to CFD software analysis. When comparing the performance of the two fans to the Sirocco fan under the same 150&#xa0;mm outlet diameter, the maximum air flow rate increased by 36.45% and 26.29%, the maximum static pressure increased by 33.04% and 38.30%, and the power consumption decreased from 23.9 W/CMM to 17.0 W/CMM and 20.0 W/CMM, respectively. This design effectively improves the performance and energy efficiency of range hoods.</p>

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A study on the application of high-efficiency in-line duct fan to range hoods

  • 期刊论文

  • 发表日期：

    2025年8月7日

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  • Chi-Wen Lu,
  • Yu-Yuan Hsieh,
  • Jeng-Min Huang,
  • Chun-Wei Liu

摘要

Many range hoods on the market that use double-inlet Sirocco fans have significant shortcomings. This issue can be addressed by utilizing high-efficiency in-line duct fans. In this study, a commercially available canopy range hood was used as a reference unit. Two high-efficiency in-line duct fans, IL-Model(1) and IL-Model(2), were designed using professional fan design software. The target design specifications to compete with the internal Sirocco fan in the reference unit were around 22–24 CMM and 900–1100 Pa, respectively. These two fans were produced using 3D printing. Wind tunnel tests for IL-Model(1) and IL-Model(2) showed that the maximum air flow rate differed by less than 10% compared to CFD software analysis. When comparing the performance of the two fans to the Sirocco fan under the same 150 mm outlet diameter, the maximum air flow rate increased by 36.45% and 26.29%, the maximum static pressure increased by 33.04% and 38.30%, and the power consumption decreased from 23.9 W/CMM to 17.0 W/CMM and 20.0 W/CMM, respectively. This design effectively improves the performance and energy efficiency of range hoods.