Table 1
Main characteristics of the facilities used in current study.
| Name | IFPEN_CVP | NOSE | PPRIME_RCM |
|---|---|---|---|
| Principle | CVP | RCM | RCM |
| Size of optical windows | Diameter 80 mm | 80 mm × 25 mm | 50 mm × 50 mm |
| Volume | 1.400 L | ~0.240 L | ~0.131 L |
| Injector tip protrusion | 3 mm | 4–6 mm | 4 mm |
| Wall temperature | 473 K | 373 K | 363 K |
| Gas composition %vol. (inert and reactive conditions) | 88.5% N2 + 9.3% CO2 + 2.2% H2O and 15% O2 + 73.5% N2 + 9.3% CO2 + 2.2% H2O | 100% N2 and 15% O2 + 85% N2 | 58% N2 + 42% Ar and 15% O2 + 40% N2 + 45% Ar |
| C p of reactive ambient gases at 900 K | 1.21 kJ kg−1 K−1 | 1.140 kJ kg−1 K−1 | 0.89 kJ kg−1 K−1 |
| Turbulent kinetics energy at injection timing | 6.2 × 10−3 m2/s2 | 3 × 10−5 m2/s2 | 1.25 × 10−2 m2/s2 |
| Core density at injection timing | 22.8 kg/m3 | 22.3 kg/m3 | 21.1 kg/m3 |
| Temperature target 900 K | 892 ± 9 K | 904 ± 5 K | 925 ± 15 K |