## 3 Results  
This section presents the results of different gas turbine (GT) important parameters. The shown parameters resume the overall working in terms of efficiency but also analyze the fuel consumption and stability of the working (aerodynamic-related parameters). Figure 1 shows how temperatures at the combustion chamber outlet evolve when the gas turbine changes the provided output power. These temperatures are important to determine if the gas turbine components would have to face overheating issues. The combustion chamber outlet is also the inlet of the high-pressure turbine (component of the gas turbine right after the combustion chamber). As can be seen, all the studied biofuels in this article operate the gas turbine at lower outlet combustion temperatures than the design natural gas fuel. This fact would make the high-pressure turbine work less demanding from the employed superalloys' point of view. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & **\% Volume CH\({}_{4}\)** & **\% Volume CO\({}_{2}\)** & **\% Volume H\({}_{2}\)S** & **\% Volume N\({}_{2}\)** & **Lower Heating Value (LHV)** \\  & & & & **[k]/kg]** \\ \hline Wheat Residuals & 57.00 \(\pm\) 1.26 & 42.42 \(\pm\) 2.36 & 0.27 \(\pm\) 0.02 & 0.31 \(\pm\) 0.12 & 16,604.88 \\ Quinoa Residuals & 65.08 \(\pm\) 0.98 & 33.95 \(\pm\) 2.36 & 0.35 \(\pm\) 0.09 & 0.62 \(\pm\) 0.11 & 20,541.66 \\ \hline Guinea Pig & & & & & \\ Manure—Wheat & 66.73 \(\pm\) 2.11 & 32.14 \(\pm\) 0.25 & 0.32 \(\pm\) 0.08 & 0.81 \(\pm\) 0.22 & 21,746.17 \\ Res. 75:25 & & & & & \\ \hline Guinea Pig & & & & & \\ Manure–Quinoa & 69.00 \(\pm\) 1.02 & 29.9 \(\pm\) 0.99 & 0.38 \(\pm\) 0.12 & 0.72 \(\pm\) 0.32 & 22,822.33 \\ Res. 50:50 & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Studied biofuel compositions and lower heating values (mean \(\pm\) standard deviation). \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Parameters** & **Units** & **GPM** & **QS** & **WS** \\ \hline TS & \% & 33.9 (1.7) & 87.0 (0.1) & 92.6 (0.1) \\ VS (\% ST) & \% & 72.6 (1.1) & 58.4 (1.5) & 77.2 (0.9) \\ Ashes & \% & 13.1 (0.1) & 30.3 (1.4) & 11.8 (0.1) \\ N & \% & 2.3 (1.0) & 2.2 (0.9) & 1.7 (0.7) \\ C & \% & 39.5 (1.2) & 30.7 (1.7) & 48.9 (1.6) \\ H & \% & 4.6 (0.5 & 6.4 (0.9) & 6.1 (0.5) \\ O & \% & 39.7 (1.2) & 29.8 (1.7) & 31.1 (1.6) \\ S & \% & 0.4 (0.0) & 0.6 (0.1) & 0.5 (0.0) \\ C/N & - & 15.3 (0.8) & 12.0 (0.9) & 29.6 (0.8) \\ \hline \hline \end{tabular} NOTE: GPM (guinea pig manure), WS (wheat straw), QS (quinoa straw). The data in brackets are the standard deviations.  
\end{table} 
Table 3: Characterization of substrates and inocula mean (standard deviation). The fuel obtained from the mixture of guinea pig manure and quinoa residuals (GP Manure-Quinoa Res.) is the fuel with the highest outlet combustion temperatures of the studied biofuels. Despite this fact, this fuel still operates the gas turbine at lower outlet combustion temperatures than the design natural gas case. The fuel obtained from the mixture of guinea pig manure and wheat residuals (GP Manure-Wheat Res.) operates the gas turbine at slightly lower temperatures than the fuel obtained from the mixture of guinea pig manure and quinoa. It should be remembered at this point that the GP Manure-Quinoa Res. fuel was obtained with a manure-quinoa ratio of 50:50, while the GP Manure-Wheat Res. fuel was obtained with a manure-wheat 75:25 ratio. In this way, the manure-wheat fuel would need a lower percentage of agricultural residuals than the manure-quinoa fuel. The 100% quinoa-residual-obtained fuel (Quinoa Res.) operates the gas turbine at similar combustion outlet temperatures to the cases obtained from the mixture of guinea pig manure. This case drives the gas turbine at slightly lower temperatures than the GP Manure-Wheat Res. fuel case. The 100% wheat-residual-obtained fuel (Wheat Res.) is the case in which the temperatures at the outlet of the combustion chamber are the lowest of the studied cases.