Operating Conditions – DI-H2ICE Sandia – With Fuel Injection
(See Salazar, Victor M., and Sebastian A. Kaiser)
Parameter | Value |
| Air Mass Flow | 7.03 [g/s]; or 0.5624 [g/cyc] |
| Fuel Mass Flow | 7.8463 [SLPM]; or 0.00436474 [g/cyc] |
| Equiv. Ratio | 0.265 |
| Injection Pressure | 100 bar |
| Intake Pressure | 100 kPa |
| Engine Speed | 1500 RPM |
| Bulk Gas | Nitrogen |
| Pressure Traces | 1h90c140_99.7kPa_anl.xls |
Injection Details |
|
| Jet Orientation (b) | 90° (towards the intake valves, see Fig. 2 below) |
| SOI | -140°CA (Nominal) |
| SOIactual | -137°CA (Actual, see Fig. 1 below) |
| Injection Duration | 17.5°CA |
| Ramp-up | 1°CA |
| Ramp-down | 1°CA |
Temperatures |
|
| Cylinder Wall, Piston, Head, and Valves Temperature | 353.15 K |
| The Initial Temperature and Intake Gas Temperature | 309.15 K |
Operating Conditions – DI-H2ICE Sandia – Without Fuel Injection
Parameter | Value |
| Intake Pressure | 100.45 kPa, (the target was 100 kPa) |
| Engine Speed | 1500 RPM |
| Mass Flow | 7.10 [g/s] |
| Number of Averaged Cycles | 200 cycles |
| Bulk Gas | Nitrogen (100%) |
| Pressure Traces | mot_100.45kPa_anl.xls |
Temperatures |
|
| Cylinder Wall, Piston, Head, and Valves Temperature | 353.15 K |
| Initial Temperature and the Intake Gas Temperature | 309.15 K |
Figure 1: Injector needle lift profile
Figure 2: Jet orientation
Figure 3: Injection Geometry
NOTE: Because we do not measure the Needle Lift profile, the profile of Fig. 1 (ramp-up and ramp-down) was generated. This profile is currently being used by ANL and LLNL.