ABSTRACT
Industrial fans are used in various fields such as electric fans, computer coolers, air fryers, air conditioners, and more. The temperature range of the computer cooler is between 20 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_1.tif"/> and 90 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_2.tif"/> , and the temperature range of the air fryer is between 20 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_3.tif"/> and 200 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_4.tif"/> , and the temperature range of an aeroengine is between 20 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_5.tif"/> and 2000 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_6.tif"/> . Ambient temperature is also taken into account and the extreme minimum temperature is -53℃ at Mohe City during winter. However, research on the impact of temperature on fan performance has not yet been conducted. Here, we study the impact of temperature on an axial fan performance by ANSYS Fluent. The temperature ranges of -40 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_7.tif"/> to 200 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_8.tif"/> and -50 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_9.tif"/> to 1200 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_10.tif"/> were studied separately. The numerical results show that temperature plays a crucial role in the axial fan and the flow rate of outlet and the power of impeller decrease as the temperature increases in the whole. For examples, the corresponding flow rate of outlet decreases to the initial 81% as the computer cooling fan heats up from 20 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_11.tif"/> to 90 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_12.tif"/> , and the initial 61% as the air fryer fan heats up from 20 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_13.tif"/> to 200 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_14.tif"/> , and the corresponding flow rate of outlet decreases to the initial 19% as the aircraft engine heats up from 20 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_15.tif"/> to 1200 https://www.w3.org/1998/Math/MathML" display="inline"> ℃ https://www.w3.org/1999/xlink" xlink:href="https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003679561/4534099d-8b8e-4caf-a93c-a4db4c969ee8/content/inline-math6_16.tif"/> . Those results support the conclusion that temperature plays a key role in the axial fans, and the design and numerical simulation of axial fan must take into account the impact of temperature.
