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Comparison of 50mm diameter methanol flame reproduced by the BRE burner

Burning Rate Emulator (BRE)

Unlike the other current ACME experiments, the Burning Rate Emulator (BRE) experiment is focused on fire prevention, especially in spacecraft. Specifically, BRE’s objective is to improve our fundamental understanding of materials flammability, such as ignition and extinction behavior, and assess the relevance of existing flammability test methods for low and partial-gravity environments. The burning of … Read the rest ⇢

CLD Flame
CLD Flame (aircraft test)

Coflow Laminar Diffusion Flame (CLD Flame)

Research, especially including that already conducted in microgravity, has revealed that our current predictive ability is significantly lacking for flames at the extremes of fuel dilution, namely for sooty pure-fuel flames and dilute flames that are near extinction. The general goal of the Coflow Laminar Diffusion Flame (CLD Flame) experiment is to extend the range … Read the rest ⇢

Flame Design (ISS test)
Flame Design (ISS test)

Cool Flames Investigation with Gases (CFI-G)

Cool diffusion flames were discovered during droplet combustion experiments aboard the International Space Station (ISS) in 2012, and this initiated a rapidly growing field of combustion research.  Droplet experiments necessarily involve unsteady burning rates, so cool diffusion flames have never been observed as steady spherical flames.  A natural progression toward understanding cool diffusion flames is … Read the rest ⇢

E-FIELD Flames
E-FIELD Flames (1g schlieren)

Electric-Field Effects on Laminar Diffusion Flames (E-FIELD Flames)

Electric fields can strongly influence flames because of its effect on the ions present as a result of the combustion reactions. The direct ion transport and the induced ion wind can modify the flame shape, alter the soot or flammability limits, direct heat transfer, and reduce pollutant emission. The purpose of the Electric-Field Effects on … Read the rest ⇢

Flame Design
Flame Design (drop test)

Flame Design

The primary goal of the Flame Design experiment is to improve our understanding of soot inception and control in order to enable the optimization of oxygen enriched combustion and the “design” of non-premixed flames that are both robust and soot free. An outside review panel recently declared that Flame Design “… could lead to greatly … Read the rest ⇢

s-Flame (drop test)

Structure and Response of Spherical Diffusion Flames (s-Flame)

Results from the Structure and Response of Spherical Diffusion Flames (s-Flame) Experiment on the International Space Station (ISS) The s-Flame Experiment science team (Princeton U., Rutgers U., and Glenn Research Center) completed the second and final round of tests in July. Those tests, conducted as part of the Advanced Combustion via Microgravity Experiments Project, featured … Read the rest ⇢

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