Abstract
This paper considers thermodynamic features specific to flows with stoichiometric hydrogen-oxygen combustion in a steam environment. Four combustion chamber variants were evaluated to determine one with optimal combustion conditions: direct-flow combustion chamber, swirled flow combustion chamber, bidirectional combustion chamber, and bidirectional combustion chamber with a specially profiled bulkhead. Comparative analysis has shown that bidirectional combustion chambers achieve the lowest emissions levels, and a bidirectional combustor with a profiled bulkhead displays the highest combustion uniformity. Based on the results of the above study, a miniature bidirectional hydrogen-oxygen combustor was designed and tested, showing combustion completeness levels of 99.99% at the burner exit. Moreover, the combustor was cooled by natural convection with a maximum dimensionless efficiency of 1.5 on the flame tube surface.
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