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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: Effect of initial pressure on the lower explosion limit of nicotinic acid/acetone mixture

Anno di pubblicazione: 2020

Autori: Sanchirico, Roberto; Di Sarli, Valeria; Di Benedetto, Almerinda

Affiliazioni autori: CNR; Univ Napoli Federico II

Autori CNR:

  • ROBERTO SANCHIRICO

Lingua: inglese

Abstract: In the work presented in this paper, the effect of initial pressure on the lower explosion limit (LEL) of the hybrid nicotinic acid/acetone mixture was investigated through standard explosion tests carried out in the 20 L sphere. From experimental results, the flammability diagram was built in the plane (concentration/minimum explosive concentration) of nicotinic acid versus (concentration/LEL) of acetone. Interestingly, it has been found that, in going from low pressures (P < 1 atm) to high pressures (P > 1 atm), the extension of the flammability region increases. This behavior has been attributed to the fact that the turbulence kinetic energy (and thus the energy dissipation) decreases with increasing initial pressure. Bartknecht's correlation for LEL of hybrid mixtures was modified to take into account the effect of pressure, and two correlations were obtained able to give satisfactory predictions of experimental data at both low pressures and high pressures.

Lingua abstract: inglese

Pagine totali: 7

Rivista:

Journal of loss prevention in the process industries Butterworth Scientific,
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 0950-4230

Numero volume: 64

DOI: 10.1016/j.jlp.2020.104075

Referee: Sė: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: ISI Web of Science (WOS) [000528588300029]

Parole chiave:

  • Hybrid (dust/gas-vapor) mixtures
  • Explosion
  • Lower explosion limit (LEL)
  • Initial pressure
  • 20 L sphere

Strutture CNR:

 
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