Experimental and Theoretical Analysis of the Combustion Efficiency and the Heat Loads on a N2O/C2H4 Green Propellant Combustion Chamber

Parameters Influencing the Characteristic Exhaust Velocity of a Nitrous Oxide/Ethene Green Propellant

“…In previous test campaigns [36,37,40] the occurring heat flux of the premixed N 2 O/C 2 H 4 propellant to the combustor's walls was studied in detail. It was found that the heat fluxes to the chamber walls are typically in the range of 0.5 2 to 3.6 2 and the heat loads are strongly depending on the chamber pressure, mixture ratio and chamber length.…”

“…It was found that the heat fluxes to the chamber walls are typically in the range of 0.5 2 to 3.6 2 and the heat loads are strongly depending on the chamber pressure, mixture ratio and chamber length. In addition, the influence of the oxidizer to fuel mixture ratio (ROF) on * was analysed [37]. The results of these previous campaign [37] are shown in figure 7.…”

“…In addition, the influence of the oxidizer to fuel mixture ratio (ROF) on * was analysed [37]. The results of these previous campaign [37] are shown in figure 7. The diagram indicates the experimental data (black squares) and four different results for * depending on the assumed heat losses to the chamber walls for different chamber segment lengths.…”

“…Each segment is equipped with three type-K thermocouples in different distances (3 mm, 8 mm and 13 mm) to the inner chamber wall and a pressure transducer (Schaevitz 913 or Kistler 4043). In further investigations[36][37][38] the thermocouple's data were used to derive the average and transient heat flux to the chamber walls. The inner diameter of the combustion chamber is 0.024 m.…”