Friday, May 27, 2011

dirty space news: NASA reveals heptane fuel

i'll let the folks at NASA do the explainin' after i show the photo...

credit: NASA (!)
i mean...!?!

"Because of the absence of gravity, fuels burning in space behave very differently than they do on Earth. In this image, a 3-millimeter diameter droplet of heptane fuel burns in microgravity, producing soot. When a bright, uniform backlight is placed behind the droplet and flame and recorded by a video camera, the soot appears as a dark cloud. Image processing techniques can then quantify the soot concentration at each point in the image. On the International Space Station, the Flame Extinguishing Experiment examines the combustion of such liquid fuel droplets.

This colorized gray-scale image is a composite of the individual video frames of the backlit fuel droplet. The bright yellow structure in the middle is the path of the droplet, which becomes smaller as it burns. Initial soot structures (in green) tend to form near the liquid fuel. These come together into larger and larger particles which ultimately spiral out of the flame zone in long, twisting streamers."

i dont really know why there is a mirror-image affect. not really the point though.... ;)


heroineworshipper said...

Where's the video of it burning? Experiments that actually work are a huge accomplishment.

Boris Häußler said...

It made Spiegel-online today. Front page ;-)