水油混合燃焼（第一報）混合燃焼技術の確立

摘要

水と重油を混合して安定燃焼させる技術を開発した。着眼点は、水と重油の直前混合、炎温度低下防止対策、の2点である。A重油と水道水の混合で、水割合78％まで2時間以上の安定燃焼を確認した。水割合の増加に伴い水30％までは燃焼炎温度が低下して行く。%Water-oil co-axial air-blast spray combustion was investigated through experiment. The water and the heavyoil spray were mixed co-axially just before combustion chamber instead of emersion spray. Well-stirred reaction with heat recirculation through an inner insulated wall was developed automatically since the spray flame was introduced along the wall tangentially and combustion gas volume was drastically increased by evaporation of water. As a result, it is disclosed that a flammability limit could be extended to a mixture of heavy-oil of 22% and water of 78% successfully.