Experiment Setup

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The combustion experiments are conducted at the University of Houston. A circular porous plug burner is housed in a pressure-controlled chamber. Working pressures of 1/3 atm to 1/2 atm are needed to observe cell formation. The burner is cooled by flowing chilled water through a helically-wound coil embedded in the plug. A mixture of propane-air or isobutane-air is fed from the bottom through the burner and the flame front is ignited above the burner.