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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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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DOI: https://doi.org/10.1007/s00193-007-0117-7