Open Core Re-burn Stratified Downdraft Gasifiers: References
Tom Miles, November 18, 2007

Temperatures and Gas Composition

Multi-mode Gasifier

"Method an Apparatus for Generating and Utilizing Combustible Gas", US Patent 6,647,903, Nov. 18, 2003, Charles, W. Aguadas Ellis http://freepatentsonline.com/6647903.pdf

Superficial velocity - the Key to Downdraft Gasification T. B. Reed, R. Walt, S. Ellis, A. Das, S. Deutch http://www.woodgas.com/Superficial%20Velocity.pdf

S. Chopra and A. Jain.