Based on the operation and the actual setup in Section 2.2, the fuel valve system is proposed as in Figure \ref{389896}. G 1(s) is the pilot gas fuel valve model and G 2(s) is the main gas fuel valve model. The ratio of the pilot fuel valve, x 1 valves is approximated at 0.55 as previously. The ratio for the main fuel valve, x 2 is 0.45 as in the previous investigation. The sum of the valves values is sent to the fuel system.