INFERNITYFLAME IN FREEFALL
CATALOG
SPICE DUCT GROUP/GASEOUS FUEL/SLICE

Structure & Liftoff in Combustion Experiment (SLICE)

Prevention
Spacecraft cabinSpace station
ComparePSI record
AI summary
AI-GENERATED

Generated from the curated record only. The model is instructed not to invent numbers; verify all values against the source before engineering use.

Experimental setup

FUEL

Phase
Gaseous
Material
Methane, ethylene and nitrogen-diluted variants
Shape
Laminar jet diffusion flame in a co-flow of air
Size
SPICE nozzle set with additional nozzle sizes

CONDITIONS

O2 concentration
21%
Pressure
Varied / not specified
Airflow
Varied / not specified

Single values are documented test conditions, not flammability limits. Ranges appear under variables tested.

OBJECTIVES

Characterize diffusion flame structure at the stabilizing region from attached to lifted conditions and identify liftoff limits as a function of fuel, burner diameter and flow.

Sensors & measurements
  • Still and video imaging of the flame base
  • Temperature field measurements
  • Flow and fuel mass flow controllers
  • Anemometer for co-flow velocity
Variables tested
  • Fuel type and nitrogen dilution
  • Burner diameter
  • Liftoff velocity limits
  • Attached through lifted flame conditions
Key findings
  1. 01Characterized flame structure at the base from attached through lifted conditions.
  2. 02Identified liftoff velocity limits for methane, ethylene and diluted fuels.
  3. 03Served as a precursor to the ACME CLD Flame experiment, de-risking the later investigation.
  4. 04Provided photographic observations of transient liftoff behavior that is extremely difficult to capture in normal gravity.