Hardware: Multi-User Droplet Combustion Apparatus (MDCA), Combustion Integrated Rack (CIR) · Program: International Space Station (ISS) · Fuel phase: Liquid · DOI 10.60555/m6pj-a914
Objective
The objectives of this investigation are to: 1) Examine the combustion behavior of n-dodecane and mixtures of n-dodecane/iso-dodecane at pressures ranging from 0.25 atm to 5 atm. 2) Analyze the effects of helium dilution on cool flame behavior. 3) Examine the behavior of combustion characteristics. 4) Investigate the relationship between droplet size, pressure, and flame extinction, and (5) understand the consequence of soot formation during cool flame combustion.
CFI (PSI-39, Multi-User Droplet Combustion Apparatus (MDCA), Combustion Integrated Rack (CIR), International Space Station (ISS)). 227 test runs from NASA PSI (DOI 10.60555/m6pj-a914).
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
- n-Dodecane, n-Dodecane/iso-dodecane, Farnesane
- Gravity
- 0 g (microgravity, ISS / Cygnus flight)
- Oxygen Concentration
- Not reported
- Ambient Pressure
- 101.3 kPa
- Airflow Velocity
- Not reported
Findings summary
227 test runs recorded; 50.7–506.6 kPa (n=227); droplet K 0.00–1.70 mm²/s (n=148); microgravity (0 g, ISS / Cygnus flight).
Source: NASA PSI PSI-39: PSI-39_Science Documents_CFI_DataSummary_Spreadsheet_Jan2021.xlsx (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.
Science Documents CFI DataSummary Spreadsheet Jan2021 [DATA] · 227 runs · 0 held constant · 2 varied · 16 measured
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Science Documents CFI DataSummary Spreadsheet Jan2021 [Master Sheet] · 227 runs · 0 held constant · 6 varied · 0 measured
Science Documents CFI DataSummary Spreadsheet Jan2021 [Igniter] · 224 runs · 0 held constant · 2 varied · 0 measured
Experimental table CFI · 87 runs · 0 held constant · 6 varied · 0 measured
Instrument and imaging settings (11)
- Local Time
- Test Date
- CF Gain
- Downlink Video
- HF Gain
- HIBMS
- HIBMS-2
- IPSU-4
- LLL
- Llumination
- Comments
Test Runs (227)
Conditions and measurements for each run. Open a run to see every value and its source row.
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