I. Introduction etonation is a mode of combustion that can provide an extremely efficient means of combusting a fuel-oxidizer mixture1. It produces kinetic energy two orders of magnitude higher than a slower-burning deflagration and four orders of magnitude higher in terms of heat release2. It is thermodynamically more efficient and has a real potential for the next generation of aerospace propulsion systems3. Detonative combustion utilises shocks or detonation waves which act as valve between the detonation product fresh charges4 and the first practical application of non-isobaric heat addition in Humphrey cycle analysis5. In a conventional Brayton cycle, the heat injection process has the maximum exergy which is fixed by the compressor’s delivered pressure and the maximum temperature allowed by the cycle. Therefore, the exergy can be increased if the heat injection process follows different thermodynamic cycle path6. The resulting thermodynamic of Humphrey cycle is considered a modification to the Brayton cycle in which the constant-pressure heat addition process is replaced by a constant-volume heat addition process7. The Humphrey cycle is much more efficient than the Brayton cycle8 as a very rapid burning takes place. Due to the rapidity of this process, there is not enough time for pressure equilibration, and the overall process is, thus, thermodynamically closer to a constant volume process than the constant pressure process in the typical of conventional propulsion systems8. Thermodynamic efficiency of Chapmen–Jouget detonation has minimum entropy generation along the Hugoniot curve as compared to other combustion modes which appear to have a potential thermodynamic advantage9, 10.