Hardware: Saffire 1 enclosure in Cygnus · Program: International Space Station (ISS) · Fuel phase: Solid · DOI 10.60555/0t15-1z43
Objective
The objectives of this investigation were to: (1) determine how rapidly a large scale fire grows in low-gravity and (2) investigate the low-g flammability limits compared to those obtained in NASA’s normal gravity material flammability screening test.
SAFFIRE-I (PSI-98, Saffire 1 enclosure in Cygnus, International Space Station (ISS)). 2 test runs from NASA PSI (DOI 10.60555/0t15-1z43).
Metadata Completeness
33%
Share of key conditions (oxygen, pressure, airflow) reported in the source tables.
Representative Conditions
Median of the values reported across this investigation's test runs.
- Fuel / Material
- SIBAL cotton-fiberglass
- Gravity
- 0 g (microgravity, ISS / Cygnus flight)
- Airflow-Equivalent Gravity
- 2 of 2 runs, ~0.38 g (2)
- Oxygen Concentration
- Not reported
- Ambient Pressure
- Not reported
- Airflow Velocity
- 0.2 m/s
Findings summary
2 test runs recorded; 20.0–20.0 cm/s (n=2); microgravity (0 g, ISS / Cygnus flight); 2 runs have airflow comparable to partial-gravity buoyancy.
Source: NASA PSI PSI-98: PSI-98_Experimental table_SAFFIRE-1.csv (psi.nasa.gov). File, sheet and row are listed per test run below.
Experiment Design: Held Constant vs Varied
What stayed fixed across test runs, what was changed, and what was measured, from the NASA test tables.
Experimental table SAFFIRE-1 · 4 runs · 6 held constant · 3 varied · 1 measured
Loading variables…
Instrument and imaging settings (2)
- Camera 1
- Camera 2
Test Runs (2)
Conditions and measurements for each run. Open a run to see every value and its source row.
Loading the first 50 of 2 runs…