Combustion Integration Rack (CIR)/Advanced Combustion via Microgravity Experiments (ACME) Hardware Replacement: The crew changed the CIR/ACME system from the BRE (Burning Rate Emulator) experiment configuration to the Flame Design experiment configuration. The Flame Design investigation studies the production and control of soot to optimize oxygen-enriched combustion and the design of robust, soot-free flames. Soot can …