Fig. 1. Small test facility: 1-air, methane, oxygen, nitrogen; 2-combustion chamber;
3-honeycomb; 4-heat insulation; 5-cooling chamber with nitrogen input; 6-tiny
wire; 7-digital balance; 8-exhaust; 9-glass window; 10-sample; 11-thermocouple;
12-nozzle with mixing chamber.