Carbon Nanomaterials: A New Sustainable Solution to Reduce the Emerging Environmental Pollution of Turbomachinery Noise and Vibration

Xiao Qi Jia,Kun Rao,Song Yu Li,Bao Ling Cui,Tuo Yang,Jun Lang Ou,Zu Chao Zhu,Hong Jiang Miu,Dong Yang Wu

doi:10.3389/fchem.2020.00683

Abstract

The vibration and noise that resulted from turbomachinery, such as fans, compressors, and centrifugal pumps, are known to bring considerable disturbance and pollution to the machine itself, the environment, and the operators. Hence, how to cope with the vibration and noise has become a recent research focus. With the advancement of materials science, more and more new nanomaterials have been applied in the field of noise and vibration reduction. To be specific, carbon-based nanomaterials, such as carbon fibers, carbon nanotubes, and graphenes, have achieved outstanding results. Carbon nanocomposites, such as carbon nanofibers, carbon nanotubes, and graphenes, are characterized by their low densities, high strengths, and high elastic moduli, all of which made carbon nanocomposites the most promising vibration and noise-reduction composites, thanks to their damping properties, compatibilities, noise and vibration absorption qualities, and wide wave-absorbing frequency bands. In light of this, this paper summarizes the progresses and application prospects of such carbon nanocomposites as carbon nanofibers, carbon nanotubes, and graphenes in the field of turbomachinery vibration and noise reduction.

Highlights

Noise pollution is deemed as one of the four major types of environmental pollution apart from air, water, and solid waste pollutions, and it poses a significant influence on human health and environmental damage
This paper summarizes the progresses and application prospects of such carbon nanocomposites as carbon nanofibers, carbon nanotubes, and graphenes in the field of turbomachinery vibration and noise reduction
Existing practical research on carbon nanocomposites in turbomachinery vibration and noise reduction is predominantly predicated upon the damping properties as well as sound and vibration absorptions

Summary

INTRODUCTION

Noise pollution is deemed as one of the four major types of environmental pollution apart from air, water, and solid waste pollutions, and it poses a significant influence on human health and environmental damage. Noise can affect the nervous system, endanger human health, destroy the ecosystem, and pollute the environment, leading to the deaths or even extinctions of living things (Stephen and Mark, 2003; Francis et al, 2009; Mehdi et al, 2011). Turbomachinery, such as car engines, large fans, compressors, and centrifugal pumps, has become a major source of noise pollution (Forouharmajd et al, 2012; Gabbert et al, 2014; Sun et al, 2020a). Progresses and application prospects of carbon nanocomposites in the field of turbomachinery vibration and noise reduction were discussed in two ways—damping property and sound absorption property of carbon nanocomposites

VIBRATION AND NOISE REDUCTION BASED ON THE DAMPING PROPERTY

Findings

CONCLUSION AND PERSPECTIVE