PSI-159 · ACME CFI-G
“Plan and support flight testing on the International Space Station (ISS).” [PSI JSON: objective]
“Perform spherical diffusion flame tests aboard the International Space Station.” [PSI JSON: approach]
Overview
Objective [text]
1. Plan and support flight testing on the International Space Station (ISS). 2. Determine the conditions for which cool diffusion flames occur for propane, n-butane, and n-pentane; normal and inverse flames; and a broad range of Zst, Tad, and fluent flow rate. 3. Support the flight tests with advanced CFD simulations. 4. Identify or develop a chemical kinetics mechanism that yields good agreement between the CFD predictions and the ISS measurements. 5. Disseminate the results as widely as possible.
Source
data/raw/psi-data/PSI-159/_investigation/PSI-159.json: objective · PSI investigationApproach [text]
Perform spherical diffusion flame tests aboard the International Space Station. Consider multiple fuels, a range of reactant dilutions, flow rates, and pressures for normal and inverse convection directions. Observe the flames with a broad suite of cameras, radiometers, photomultiplier tubes, and thermocouples.
Source
data/raw/psi-data/PSI-159/_investigation/PSI-159.json: approach · PSI investigationHypothesis [text]
The hypotheses of this research are that testing aboard the ISS can demonstrate the following for the first time, contributing to an improved understanding of cool flame kinetics. 1. Steady-state cool diffusion flames on spherical porous burners. 2. Cool diffusion flames burning propane, n-butane, and n-pentane. 3. Cool diffusion flames for a wide range of Zst, Tad, and pressures. 4. Inverse cool diffusion flames. 5. Cool diffusion flames for which a decrease in fluent flow rate will cause extinction, whereas an increase will cause a transition to a hot diffusion flame, with oscillation possible between hot and cool flames.
Source
data/raw/psi-data/PSI-159/_investigation/PSI-159.json: hypothesis · PSI investigationResearch impacts [text]
Combustion provides 86% of the world’s energy and an even higher fraction of the energy used for transportation. The internal combustion engines used for transportation generally have thermal efficiencies of 38% or lower because of thermal losses. These efficiencies may increase to 60% if future engines can take advantage of ultra-lean combustion. However, this progress is being impeded by the limited understanding of the chemistry of cool flames. Research into cool diffusion flames (whose peak temperatures are 500 – 1000 K) has grown exponentially since they were discovered in 2012. The measurements performed for this project will help to test and advance cool flame kinetics mechanisms. This should facilitate the development of more efficient internal combustion engines.
Source
data/raw/psi-data/PSI-159/_investigation/PSI-159.json: researchImpacts · PSI investigationHardware [text]
ACME, Combustion Integrated Rack (CIR)
Source
data/raw/psi-data/PSI-159/_investigation/PSI-159.json: experimentHardware · PSI investigationFlight program [text]
International Space Station (ISS)
Source
data/raw/psi-data/PSI-159/_investigation/PSI-159.json: flightProgram · PSI investigationStart date [not in PSI]
Not stated in PSI
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data/raw/psi-data/PSI-159/_investigation/PSI-159.json: investigationStartDate · PSI investigationEnd date [not in PSI]
Not stated in PSI
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data/raw/psi-data/PSI-159/_investigation/PSI-159.json: investigationEndDate · PSI investigationTests
333 tests with extracted table records (SAME-R aging sub-runs grouped by parent ID) · 2188 extracted values (source: data/conditions/PSI-159.csv).
Variation is observed in extracted values; it does not establish the experimental design.
| Variable | Observed | Distinct values / tests | Range |
|---|---|---|---|
| burner_o2_mole_fraction [data/conditions/PSI-159.csv] | varied | 12 / 154 | 12.0% – 85.0% |
| flame_type [data/conditions/PSI-159.csv] | distinct values as recorded | 2 / 333 | inverse, normal |
| fuel [data/conditions/PSI-159.csv] | distinct values as recorded | 7 / 333 | 30% butane, 30% ethane, 30% propane, 50% butane, butane, ethane, propane |
| o2_mole_fraction [data/conditions/PSI-159.csv] | varied | 139 / 179 | 18.0% – 40.0% |
| outcome:burn_time [data/conditions/PSI-159.csv] | measured | 100 / 329 | 0 s – 304 s |
| outcome:cool_flame [data/conditions/PSI-159.csv] | measured | 8 / 8 | no, PCI-hot, yes, PCI-A, yes, PCI-B, yes, PCI-C, yes, PCI-D, yes, PCI-E, yes, PCI-F, yes, PCI-G |
| outcome:hot_ignition [data/conditions/PSI-159.csv] | measured | 5 / 333 | No, Yes, flash, no, yes |
| outcome:o2_mole_fraction_after_test [data/conditions/PSI-159.csv] | measured | 136 / 179 | 0.17939183 1 – 0.397258964 1 |
| pressure [data/conditions/PSI-159.csv] | varied | 11 / 333 | 49.5 kPa (7.18 psia) – 331 kPa (48 psia) |
Loading test data…
Additional outcome cells, where available, are displayed as written. Source: data/derived/outcomes_extra.csv.
Instruments mentioned in the approach
No instrument sentence identified in the approach text.
Experimental table columns
- Flame Type [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Fuel [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Cool flame? [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- XO2 before test [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- XO2 after test [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- approx p (bar) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Xf [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- mHC (mg/s) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- TFP [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Tad (K) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Zst [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Hot ignition [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- burn time (sec) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Self-ext or flow term [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Peak burner T (C ) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Normal Flames.csv · PSI investigation
- Flame Type [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Fuel [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Xf before test [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Xf after test [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- approx p (bar) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- XO2 [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- HC burnrate (mg/s) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- O2 flow rate (mg/s) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- TFP [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Tad (K) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Zst [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Hot ignition [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- burn time (sec) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Self -ext or flow term [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Peak burner Temp (C) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Peak burner temp (K) [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
- Color [table] data/raw/psi-data/PSI-159/Experimental table/PSI-159_Experimental table_CFI-G_Inverse Flames.csv · PSI investigation
Data
Publications
- Spherical gas-fueled cool diffusion flames 10.1016/j.proci.2022.07.015 [data/manifest/publications.csv]
- Cool diffusion flames in a stably stratified stagnation flow 10.1016/j.combustflame.2023.112852 [data/manifest/publications.csv]
Data reuse
Not stated in PSI [not in PSI] data/raw/psi-data/PSI-159/_investigation/PSI-159.json: related_glds · PSI investigation
PSI page
PSI page data/manifest/web_check_2026-11-14.csv: line 1 URL pattern