Hardware: Comparitive Soot Diagnostic Hardware; Refer to final report · Program: International Space Station (ISS) · Fuel phase: Aerosol · DOI 10.60555/2np7-jv14
Objective
Similar to the original SAME investigation, the primary objective of the SAME-R investigation was to quantify the sizes that the liquid smoke particulate achieves in low gravity and to relate the droplet size distribution to the smoke generation and smoke transport conditions in the experiment. One of the problems encountered during the SAME investigation was that after the thermal precipitators were returned to the ground, it was found that all the TEM grids were severely contaminated with some unidentified foreign particles, making these grids unusable although some of them showed shapes of certain types of smoke particles. Based on that experience the SAME-R investigation employed several modification covering new materials, extended operating conditions, and diagnostic equipments.
SAME-R (PSI-101, Comparitive Soot Diagnostic Hardware; Refer to final report, International Space Station (ISS)). 109 test runs from NASA PSI (DOI 10.60555/2np7-jv14).
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
- Kapton, Silicone, Lampwick, Teflon, Pyrell
- Gravity
- 0 g (microgravity, ISS / Cygnus flight)
- Airflow-Equivalent Gravity
- 87 of 109 runs, ~between g (76), ~zero g (11)
- Oxygen Concentration
- Not reported
- Ambient Pressure
- Not reported
- Airflow Velocity
- 0.081 m/s
The PSI record mentions both flight and ground work; 0 g reflects its ISS / Cygnus flight metadata.
Findings summary
109 test runs recorded; 0.0–8.1 cm/s (n=109); microgravity (0 g, ISS / Cygnus flight); 87 runs have airflow comparable to partial-gravity buoyancy.
Source: NASA PSI PSI-101: PSI-101_Experimental table_SAME-R.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 SAME-R · 109 runs · 1 held constant · 5 varied · 1 measured
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Instrument and imaging settings (1)
- Date
Test Runs (109)
Conditions and measurements for each run. Open a run to see every value and its source row.
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