Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Journal of Physics: Theories and Applications
Yoga N. Adhitama
Departement of Physics University of Gadjah Mada Sekip Utara BLS 21 Yogyakarta 55281 Indonesia
Education Materials Science & Nanotechnology Physics

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Experimental Study of Resonance Frequency at Prime Mover Thermoacoustic Standing Wave Danang D. Cahyadi; Yoga N. Adhitama; Ikhsan Setiawan; Agung B. S. Utomo
Journal of Physics: Theories and Applications Vol 1, No 2 (2017): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1228.165 KB) | DOI: 10.20961/jphystheor-appl.v1i2.19316

Abstract

Thermoacoustic prime movers work by using thermal energy to produce acoustic energy in the form of sound wave through thermoacoustic effect which occurs in a porous medium called stack. This paper describes an experimental study on the relation between the order of resonance frequencies generated by a thermoacoustic prime mover and the length of the resonator and the viscous penetration depth. Extending the resonator length will decreasing the resonance frequency which result in the increasing in the viscous penetration depth. Generally, the generated sound consists of only one frequency, that is the first-order one. However, under certain conditions, the sound has only the second-order frequency or comprises two frequencies of the first-order and second-order resonance frequencies. This phenomenon can be explained by considering the comparison between the effective hydraulic radius of stack () and the viscous penetration depth (). It is found that the first-order frequency appears when , while when   (with  calculated by using the first-order frequency) then the second order frequency is produced so that  is back to a smaller value and therefore the condition of  is recovered. In addition, when of  the thermoacoustic prime mover will generate the first and second order frequencies together.
Co-Authors Agung B. S. Utomo Danang D. Cahyadi Ikhsan Setiawan