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Detonability of THDCPD-exo–air mixtures

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Abstract

In the frame of industrial risk and propulsive application, the detonability study of JP10–air mixtures was performed. The simulation and measurements of detonation parameters were performed for THDCPD-exo/air mixtures at various initial pressure (1 bar < P 0 <  3 bar) and equivalence ratio (0.8 < Φ < 1.6) in a heated tube (T 0 ~ 375 K). Numerical simulations of the detonation were performed with the STANJAN code and a detailed kinetic scheme of the combustion of THDCPD. The experimental study deals with the measurements of detonation velocity and cell size λ. The measured velocity is in a good agreement with the calculated theoretical values. The cell size measurements show a minimum value for Φ ~ 1.2 at every level of initial pressure studied and the calculated induction length L i corresponds to cell size value with a coefficient k = λ/L i = 24 at P 0 = 1 bar. Based on the comparison between the results obtained during this study and those available in the literature on the critical initiation energy E c, critical tube diameter d c and deflagration to detonation transition length L DDT, we can conclude that the detonability of THDCPD–air mixtures corresponds to that of hydrocarbon–air mixtures.

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Abbreviations

d :

tube inner diameter

D :

measured detonation velocity

D CJ :

Chapman–Jouguet detonation velocity

DDT:

deflagration to detonation transition

E c :

critical initiation energy of a spherical detonation

L i :

induction length

L DDT :

DDT Length

P :

pressure

T :

temperature

THDCPD:

tetrahydrodicyclopentadiene

u :

particule velocity

CJ:

Chapman–Jouguet state

ZND:

Zel’dovich–von Neuman–Döring state

0:

initial state

λ :

detonation cell size

Φ :

equivalence ratio

ρ :

density

σ :

Standard deviation of λ

τ i :

induction time

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Authors and Affiliations

  1. Laboratoire de Combustion et de Détonique, ENSMA, CNRS UPR 9028, BP 40109, 86961, Futuroscope Cedex, France

    Rémy Sorin, Pascal Bauer & Daniel Desbordes

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  1. Rémy Sorin
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  2. Pascal Bauer
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  3. Daniel Desbordes
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Correspondence to Rémy Sorin.

Additional information

Communicated by F. Lu.

This paper is based on the work presented at the 33rd International Pyrotechnics Seminar, IPS 2006, Fort Collins, July 16–21, 2006.

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Sorin, R., Bauer, P. & Desbordes, D. Detonability of THDCPD-exo–air mixtures. Shock Waves 17, 363–369 (2008). https://doi.org/10.1007/s00193-007-0117-7

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