Energy generation and its optimal use are key issues nowadays. In this framework the use of cogeneration (CHP) or trigeneration (CHCP) is an attractive solution towards higher system efficiency. Traditional thermal machines are used as a prime mover in a CHP/CHCP plant. Recently novel technologies were investigated for prime mover and cooler. Among them thermoacoustics is attractive as it allows to embed a prime mover, a cooler and an alternator in a single machine. Moreover, it features reduced maintenance cost as it requires no moving parts but the electric alternator. The design of an efficient electric alternator is one of the major challenge, as it must convert into electricity a small linear displacement of the mover at high frequency. The latter is a critical item in terms of diagnostics also. Here the fault diagnosis of a thermoacoustic generator is investigated, where the major defects are ageing or fatigue of the spring used to center and sustain the mover of electric generator. The fault diagnosis is based on the non invasive analysis of electric signals at the generator terminal. The paper also deals with post fault strategies. © 2009 IEEE.

Fault diagnosis of linear electric generators for thermoacoustic machines / Rossi, Andrea; Immovilli, Fabio; Bianchini, Claudio; Bellini, Alberto; Serra, Giovanni. - (2009), pp. 1-7. (Intervento presentato al convegno 2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2009 tenutosi a Cargese, fra nel 2009) [10.1109/DEMPED.2009.5292780].

Fault diagnosis of linear electric generators for thermoacoustic machines

ROSSI, Andrea;IMMOVILLI, Fabio;BIANCHINI, Claudio;BELLINI, Alberto;SERRA, GIOVANNI
2009

Abstract

Energy generation and its optimal use are key issues nowadays. In this framework the use of cogeneration (CHP) or trigeneration (CHCP) is an attractive solution towards higher system efficiency. Traditional thermal machines are used as a prime mover in a CHP/CHCP plant. Recently novel technologies were investigated for prime mover and cooler. Among them thermoacoustics is attractive as it allows to embed a prime mover, a cooler and an alternator in a single machine. Moreover, it features reduced maintenance cost as it requires no moving parts but the electric alternator. The design of an efficient electric alternator is one of the major challenge, as it must convert into electricity a small linear displacement of the mover at high frequency. The latter is a critical item in terms of diagnostics also. Here the fault diagnosis of a thermoacoustic generator is investigated, where the major defects are ageing or fatigue of the spring used to center and sustain the mover of electric generator. The fault diagnosis is based on the non invasive analysis of electric signals at the generator terminal. The paper also deals with post fault strategies. © 2009 IEEE.
2009
2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2009
Cargese, fra
2009
1
7
Rossi, Andrea; Immovilli, Fabio; Bianchini, Claudio; Bellini, Alberto; Serra, Giovanni
Fault diagnosis of linear electric generators for thermoacoustic machines / Rossi, Andrea; Immovilli, Fabio; Bianchini, Claudio; Bellini, Alberto; Serra, Giovanni. - (2009), pp. 1-7. (Intervento presentato al convegno 2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2009 tenutosi a Cargese, fra nel 2009) [10.1109/DEMPED.2009.5292780].
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1131160
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
social impact