An investigation on the sound absorption performance of granular molecular sieves under room temperature and pressure

9Citations
Citations of this article
10Readers
Mendeley users who have this article in their library.

Abstract

The sound absorption of granular silica-aluminate molecular sieve pellets was investigated in this paper. The absorption coefficients of molecular sieve pellets with different pore sizes, pellet sizes, and layer thicknesses were measured through impedance tubes under room temperature and pressure conditions. The effects of pore size, pellet size, layer thickness were compared and explained. The comparisons show that at room temperature and pressure, the sound absorption of molecular sieve pellets is not a result of the crystalline structure, but rather it mainly changes with the pellet size and layer thickness. In addition, the five non-acoustical parameters of molecular sieve pellets were obtained by an inverse characterization method based on impedance tube measurements. The measurement by impedance tubes is in good agreement with the calculation of Johnson-Champoux-Allard (JCA) model, proving that the JCA model can be effectively used to predict the sound absorption of molecular sieve pellets.

Cite

CITATION STYLE

APA

Zhou, B., Zhang, J., Li, X., & Liu, B. (2020). An investigation on the sound absorption performance of granular molecular sieves under room temperature and pressure. Materials, 13(8). https://doi.org/10.3390/MA13081936

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free