Diesel

Standard diesel fuel (#2 diesel, heating oil, red diesel).

All temperatures are measured at the heat exchanger (exterior of burn chamber). For burn cycle behavior, see Burn Cycle.

Temperature Thresholds

Threshold

Temperature

Purpose

Combustion establishing

190°C

Transition to leaner mixture

Combustion stable

200°C

Glow plug off, PID controller on

Normal operation

215°C

PID target temperature

Pump reduction

230°C

Reduce pump rate by 50%

Pump recovery

210°C

Restore normal pump rate

Pump disable

250°C

Disable pump until below threshold

Flame-out detection

190°C

Combustion failure

Cooldown glow start

180°C

Begin carbon burnoff

Cooldown complete

120°C

Glow plug extinguishes, fan cooldown timer starts

Emergency stop

275°C

Component protection

Timing and Settings

Parameter

Value

Notes

Glow plug warmup

60 seconds

Time before fuel injection

Ignition timeout

5 minutes

Maximum time to reach combustion

Ignition pump rate

500ms

Rich mixture for ignition

Preheating pump rate

250ms

Leaner mixture for stable burn

Maximum pump rate

5000ms

Slowest fuel delivery (validation limit)

Ignition RPM

2500

Initial airflow

Preheating RPM

2800

Increased airflow

Cooldown RPM

2500

Heat dissipation

Fan cooldown timer

5 minutes

Run after glow plug extinguishes