Abstract
The results of analytical and experimental studies to determine the design technology needs of high temperature rise (AT) combustors and to define candidate design concepts for meeting these needs are reviewed. These studies show that several unique design considerations and constraints apply, because a high proportion of the available airflow must be allocated to the combustion process at the high AT operating conditions. This airflow allocation is necessary to obtain efficient combustion and acceptable smoke emission levels at the high AT conditions. Important technology needs include design features to provide stable operation over very wide AT ranges and design features to minimize liner-cooling airflow requirements. Candidate design concept features for providing these needed high A J combustor capabilities are described. Included are advanced design concepts to provide combustion process staging capabilities, as well as advanced liner-cooling and structural design concepts. The current development status of these various advanced design concepts is also assessed.
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