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A numerical study for estimating dynamic performance parameters of 40×40 mm2 ultrasonic piezoelectric micro blower and proposing a set of dimensions for optimum performance

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  • Rode, Bhola Keshao
  • VP, Chandramohan

Abstract

Piezoelectric ultrasonic micro blowers are increasingly used in various applications because of their compact size and energy efficiency. In this work, the dynamic performance parameters of a 40 × 40 mm2 micro blower were estimated and analyzed and a set of dimensions was proposed for optimum performance. Such a study is not noticed and hence this study is innovative. A 2D axisymmetric model of an ultrasonic micro blower is made using COMSOL Multiphysics. More than 45 simulations were conducted with different dimensions to find the best model. Various parameters such as velocity at the nozzle outlet, flow rate, diaphragm displacement, von Mises stresses, pressure gradient, operating frequency, and density of air within a fluid domain at 40 peak-to-peak voltage were estimated. Eigen frequency analysis was conducted to find out the operating frequency that needs to be worked in the ultrasonic range. The maximum central diaphragm displacement was found to be 10.26 μm. A stability analysis was performed and found that the micro blower design is reliable and safe. An average velocity at the nozzle outlet of 42.91 m/s and an average of 3.41 L/min were achieved. The findings were compared with existing literature data and were in good accord.

Suggested Citation

  • Rode, Bhola Keshao & VP, Chandramohan, 2025. "A numerical study for estimating dynamic performance parameters of 40×40 mm2 ultrasonic piezoelectric micro blower and proposing a set of dimensions for optimum performance," Energy, Elsevier, vol. 314(C).
    • Handle: RePEc:eee:energy:v:314:y:2025:i:c:s0360544224039768
    DOI: 10.1016/j.energy.2024.134198
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