Smoke Point In Co-flow Experiment

The objective of SPICE is to better understand the complex process of combustion by observing flames in a microgravity environment aboard the International Space Station (ISS) and analogous ground experiments. Specific objectives were: (1) Identify the laminar smoke-point properties of non-buoyant jet diffusion flames under various co-flow conditions in microgravity. (2) Determine the effects of burner diameter and co-flow velocity on the luminous flame lengths and smoke points. (3) Quantify the sooting propensity of different fuels, such as ethylene, propane, and propylene mixtures. (4) Validate the correlation between luminous flame shape and residence time under microgravity conditions. (5) Investigate the impact of air and fuel flow rate variations on smoke point phenomena in space.