LEAN AIR-FUEL MIXTURES WITH HYDROGEN SUPPLEMENT

TABLE 1. Efficiency-optimizing operation: tests at 5800 rpm and 2.9 Nm at the crankshaft (max torque at 5800 rpm + 11.8 Nm)

                                                                                                                                                          Total energy flow
Hydrogen flow         Gasoline flow        Hydrogen energy flow         Gasoline energy flow      (energetic consumption)
     (gs¯¹)                         (gs¯¹)                          (KJs¯¹)                                  (KJs¯¹)                                  (KJs¯¹)                   Efficiency

                                     0.270                          - - - - - -                                   11.9                                     11.9                            0.148
4.33 x 10¯¹                   0.257                            0.517                                     11.3                                     11.8                            0.149
8.66 x 10¯¹                   0.240                            1.03                                       10.5                                     11.5                            0.153
13.0 x 10¯¹                   0.221                            1.55                                        9.71                                    11.3                            0.156
17.3 x 10¯¹                   0.201                            2.06                                        8.83                                    10.9                            0.162
21.6 x 10¯¹                   0.181                            2.58                                        7.95                                    10.5                            0.168
26.0 x 10¯¹                   0.167                            3.10                                        7.34                                    10.4                            0.169