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Istituto di ricerche sulla combustione
Soppresso il 01/10/2020

Torna all'elenco Contributi in rivista anno 2020

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Coupling a Stirling engine with a fluidized bed combustor for biomass

Anno di pubblicazione: 2020

Formato: Elettronico Cartaceo

Autori: Marra, Francesco Saverio; Miccio, Francesco; Solimene, Roberto; Chirone, Riccardo; Urciuolo, Massimo; Miccio, Michele

Affiliazioni autori: Inst Res Combust CNR IRC; Inst Sci & Technol Ceram ISTEC CNR; Univ Salerno

Autori CNR:


Lingua: inglese

Abstract: The paper deals with the integration between a kinematic Stirling engine and a fluidized bed combustor for micro-scale cogeneration of renewable energy. A pilot-scale facility integrating a 40 kW(t)combustor and a gamma-type Stirling engine (0.5 kW(e)) was set up and tested to demonstrate the feasibility of this solution. The Stirling engine was installed at a lateral wall of the combustor in direct contact with the fluidized bed region. An experimental campaign was executed to assess the performance of the innovative integrated system. The experimental results can be summarized in: (a) very high combustion efficiency with biomass feeding, (b) elevated heat transfer rate to the engine, (c) a relatively small share (about 2 kW(t)) transferred to the engine from the thermal power generated by the combustor (around 13 kW(t)), (d) conversion to electric power close to the upper limit of the engine, (e) limited impact of the Stirling engine on the fluidized bed behavior, for example, temperature. From the analysis of measured variables, the dynamics is dominated by the fast response of the Stirling engine, which rapidly reacts to the slow changes of the fluidized bed combustor regime: the dynamic response of the tested facility as a thermal system was slow, the time constant being of the order of 10 minutes.

Lingua abstract: inglese

Pagine totali: 11


International journal of energy research Wiley-Interscience,
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 0363-907X

Numero volume: early view on line

DOI: 10.1002/er.5662

Referee: Sė: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: ISI Web of Science (WOS) [000550509400001]

Parole chiave:

  • biomass
  • fluidized bed combustion
  • mathematical modeling
  • micro-generation
  • Stirling engine
  • system dynamics

URL: https://onlinelibrary.wiley.com/doi/10.1002/er.5662

Data di accettazione: 20/07/2020

Altre informazioni: Submitted 21 October 2019

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