Table 2.
Changes of main performance parameters of diesel engine with altitude30.
| Altitude/m | Atmospheric pressure/kPa | Ambient temperature variation | Non-supercharged diesel engine | Supercharged diesel engine | |||||
|---|---|---|---|---|---|---|---|---|---|
| Boiling point of water/℃ | Power dip/% | Increased fuel consumption/% | Exhaust temperature rise/% | Power dip/% | Increased fuel consumption/% | Exhaust temperature rise/% | |||
| 2000 | 79.2 | For every 1000 m rise in altitude, the ambient temperature drops by about 6.5 degrees Celsius | 93.7 | 18 | 12 | 20 | 2 | 6 | 10 |
| 3000 | 70.1 | 90.2 | 27 | 18 | 30 | 3 | 9 | 15 | |
| 4000 | 61.6 | 85.8 | 36 | 24 | 40 | 5 | 12 | 20 | |
| 5000 | 54.0 | 82.7 | 10 | 15 | 25 | ||||