INFERNITYFLAME IN FREEFALL
CATALOG
ACME GROUP/GASEOUS FUEL/CFI-G

Cool Flames Investigation with Gases (CFI-G)

Prevention
SpacesuitLunar baseSpacecraft cabin
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
Propane fuel with an oxygen-nitrogen oxidizer stream
Shape
Porous spherical burner producing a steady spherical diffusion flame
Size
Spherical porous burner

CONDITIONS

O2 concentration
85%
Pressure
Varied / not specified
Airflow
Varied / not specified

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

OBJECTIVES

Observe steady spherical cool diffusion flames for the first time by feeding a gaseous fuel and an oxygen-rich stream from a porous spherical burner into the ACME chamber.

Sensors & measurements
  • Color, CH* and OH* imaging
  • Thin-filament pyrometry
  • Radiometer array
  • Photomultiplier tubes for OH* and CH* emission
  • Gas chromatograph for chamber atmosphere analysis
Variables tested
  • Oxygen concentration up to 85% in the oxidizer stream
  • Fuel and oxidizer dilution
  • Steady spherical cool diffusion flame behavior
Key findings
  1. 01Studied cool diffusion flames as steady spherical flames rather than unsteady droplet flames.
  2. 02Reached oxygen concentrations up to 85%, the highest-O2 microgravity combustion tests in the catalog.
  3. 03The burner arrangement creates an inside-out flame, with oxygen supplied from the sphere and a flammable gas in the chamber atmosphere.