As stated earlier,one of the issues with the method followed by Georgeetal. [30] was that O/F ratio and the oxidizer mass flux exponent(n) did not match.The O/F ratio obtained with this methodology is also compared with the O/F ratio obtained with weight loss method and is shown in Fig. 12. It is clearly seen from Fig. 12 that the O/F ratio obtained with this method matches well with those obtained using weight loss method after each 0.5 s reported in ref. [36]. The combustion efficiencies required to obtain the above regression rates using the algorithm developed are shown in Table 3 along with average value of combustion efficiency obtained (reported earlier in Table 1).