Literature survey for a first choice of a fuel-oxidiser couple for hybrid propulsion based on kinetic justifications

Detailed kinetic computations and experiments for the choice of a fuel–oxidiser couple for hybrid propulsion

“…Some experimental results are also proposed to support the numerical data which are obtained using mechanisms initially proposed for other application [13]. The decomposition of the oxidisers, H 2 O 2 and N 2 O, is also considered.…”

“…A review has been furnished in companion paper [13] to provide an extended view of the chemical processes involved in hybrid engine, particularly during solid fuel pyrolysis. The characteristic timescales and the heat fluxes of all the related phenomena and the effect of operating conditions on the fuel degradation have been presented [13].…”

“…The characteristic timescales and the heat fluxes of all the related phenomena and the effect of operating conditions on the fuel degradation have been presented [13]. Due to the strong coupling with the combustion, both pyrolysis and oxidative processes must be considered.…”

“…Considering the time effect on the pyrolysis can be firstly done by using global Arrhenius law whose coefficients are estimated by experimental data, despite the limitations due to TGA measures [13]. HTPB decomposition is investigated ( Figure 1) using kinetic parameters from literature [15], [16].…”

“…At each time, the reaction rate is defined as the difference between initial and instantaneous reactant amount and this difference is divided by the initial reactant amount (here: Reaction rate = (n°(HTPB) -n(HTPB)) / n°(HTPB) where n° and n 7/36 represent the initial and current amount of HTPB). The same calculations are conducted for HDPE and for PMMA (parameters from [13] and [17] respectively). The relationship between the heating rate, the temperature of pyrolysis ( Figure 1a) and the time (Figure 1b) is clear.…”