Open AccessLow NOx Combustor for Automotive Ceramic Gas Turbine: Conceptual Design
Author(s) -
Masafumi Sasaki,
Hirotaka Kumakura,
Daishi Suzuki
Publication year - 1991
Publication title -
volume 2: aircraft engine; marine; microturbines and small turbomachinery
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/91-gt-369
Subject(s) - combustor , combustion , nox , combustion chamber , automotive engineering , gas turbines , materials science , exhaust gas , automotive industry , lean burn , environmental science , mechanical engineering , engineering , waste management , chemistry , aerospace engineering , organic chemistry
Three low NOx combustors, i.e. a lean premixing combustor, a rich-lean two stage combustor and a lean diffusion flame combustor, were tested in order to find out a suitable combustion concept for an automotive ceramic gas turbine combustor. The prevaporization-premixing lean combustion was proposed as the most promising candidate to meet Japanese 10 mode regulation for gasoline passenger car. The required conditions for the uniform premixture formation in the prevaporization-premixing tube were achieved by a fine droplet size atomizer and by means of swirl and turbulent generator. Air ratio range, air loading and other dimension criteria in the lean primary combustion zone were also proposed in the present paper.
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