METHOD FOR FORMING A COHERENT JET

摘要

A method for operating a vacuum vessel with a coherent jet wherein vacuum conditions are established within the vessel and an anchored or attached flame envelope resulting from subsonic velocity fuel and oxidant is provided around at least one supersonic gas stream. Another aspect of the invention is a method for forming and maintaining a coherent gas jet within a vessel comprising injecting gas in a gas stream at a supersonic velocity from an injection device into the vessel wherein vacuum conditions are established, providing fuel and oxidant at a subsonic velocity into the vessel around said gas stream, and combusting said fuel and oxidant to form a flame envelope around said gas stream to form and maintain said gas stream as a coherent gas jet.