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FIGURE 1. Vibe curves and significant burning points for different fuel mixtures at constant spark advance and engine speed.

Figure 1 Vibe curves and significant burning points for different fuel mixtures at constant spark advance and engine speed.

Related Figures (17)

TABLE 1. Range of syngas groups composed with various inert gas concentrations (in vol%). TABLE 2. Basic physical and chemical properties of the used fuel mixtures.
TABLE 1. Range of syngas groups composed with various inert gas concentrations (in vol%). TABLE 2. Basic physical and chemical properties of the used fuel mixtures.
Preliminary Study on Combustion and Parameters of Syngas Fuel Mixtures
Preliminary Study on Combustion and Parameters of Syngas Fuel Mixtures
TABLE 3. Tested engine main dimensions.
TABLE 3. Tested engine main dimensions.
FIGURE 2. Errors on brake torque, the BSFC and vol- umetric efficiency prediction after first step calibration (simulation — measurement). TABLE 4. Criterial function weight factor from Equation (3) and optimal solution values.
FIGURE 2. Errors on brake torque, the BSFC and vol- umetric efficiency prediction after first step calibration (simulation — measurement). TABLE 4. Criterial function weight factor from Equation (3) and optimal solution values.
FIGURE 3. Comparison of measured and simulated pressure curves for the optimal solution.
FIGURE 3. Comparison of measured and simulated pressure curves for the optimal solution.
TABLE 5. Verification parameters from the syngas combustion analysis.
TABLE 5. Verification parameters from the syngas combustion analysis.
FIGURE 4. Schematic simulation procedure of a new syngas fuel mixture.
FIGURE 4. Schematic simulation procedure of a new syngas fuel mixture.
FIGURE 5. Burn Duration 10-90% and SI Vibe Burn Exponent comparison of the 6 SGs with the NG fuel for the LGW 702 engine single-cylinder combustion analysis. Preliminary Study on Combustion and Parameters of Syngas Fuel Mixtures
FIGURE 5. Burn Duration 10-90% and SI Vibe Burn Exponent comparison of the 6 SGs with the NG fuel for the LGW 702 engine single-cylinder combustion analysis. Preliminary Study on Combustion and Parameters of Syngas Fuel Mixtures
FIGURE 7. Burn duration 10-90 % MFB comparison of the 6 SGs with the NG fuel for the LGW 702 engine. FIGURE 6. Optimized CA50 position comparison of 6 SGs with NG fuel for LGW 702 engine.
FIGURE 7. Burn duration 10-90 % MFB comparison of the 6 SGs with the NG fuel for the LGW 702 engine. FIGURE 6. Optimized CA50 position comparison of 6 SGs with NG fuel for LGW 702 engine.
FIGuRE 8. IMEP comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGuRE 8. IMEP comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 9. ISFC comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 9. ISFC comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 10. Indicated Efficiency comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 10. Indicated Efficiency comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 11. Brake torque comparison of 6 SGs with NG fuel for LGW 702 engine.
FIGURE 11. Brake torque comparison of 6 SGs with NG fuel for LGW 702 engine.
FIGURE 12. Maximum Cycle Pressures comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 12. Maximum Cycle Pressures comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 13. Maximum Cycle Temperature comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 13. Maximum Cycle Temperature comparison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 14. Maximum cycle pressure position com- parison of the 6 SGs with the NG fuel for the LGW 702 engine.
FIGURE 14. Maximum cycle pressure position com- parison of the 6 SGs with the NG fuel for the LGW 702 engine.
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