Predicting performance and onset criteria of a three-stage double-acting thermoacoustic Stirling oscillator: Analysis and experiment

• Autorzy: Sangdani Mohammad Hossein , Tavakolpour-Saleh Alireza

Identyfikatory

DOI

10.24425/ame.2024.152614

• Języki publikacji: EN

Abstrakty

EN

In this paper, a novel analytical approach is proposed to predict the performance and onset criteria of a three-stage double-acting thermoacoustic Stirling oscillator (TDTASO). First, a coupled dynamic-thermodynamic model justifying the behavior of TDTASO is presented, taking into account Schmidt’s theory assumptions. Subsequently, the manipulation of the obtained governing equations reveals that the considered Stirling oscillator is a physical regulator system. Thus, the onset criteria, which are the necessary conditions for designing such oscillators, are assessed based on a new analytical method resulting from a regulator-like model. Accordingly, the onset temperature difference is predicted corresponding to different dimensions of the resonator section in the TDTASO. Next, the sensitivity of the TDTASO to the inconsistency of resonators’ dimensions is investigated. The results show that increasing the length of the mismatched water column results in a higher frequency. Finally, a prototype TDTASO is constructed and experimentally evaluated. Accordingly, the oscillator frequency is measured 3.14 Hz corresponding to the onset temperature of 163◦C and the resonator length of 0.52 m. The experimental data demonstrate the effectiveness of the proposed analytical scheme in predicting the necessary conditions for designing the TDTASO.

Słowa kluczowe

EN

thermoacoustic oscillator; regulator system; onset criteria; three-stage; double acting

PL

uszkodzenie łożyska; dekompozycja w trybie wariacyjnym; L-Kurtoza; stosunek energii; diagnostyka

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2024
• Tom: LXXI, nr 4
• Strony: 497--523
• Opis fizyczny: Bibliogr. 27 poz., il., tab.

Twórcy

autor

Sangdani Mohammad Hossein

• Department of Mechanical Engineering, Shiraz University of Technology, Shiraz, Iran

• https://orcid.org/0009-0004-9836-2276

autor

Tavakolpour-Saleh Alireza

• Department of Mechanical Engineering, Shiraz University of Technology, Shiraz, Iran

• https://orcid.org/0000-0001-6981-1686

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)