2302 管巣燃焼ボイラモデルにおけるバーナ噴流の 3 次元構造

概要

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In a tube-nested combustor for compact water-tube boiler, water tubes are placed closely to the burner and thus conventional amply furnace is, in principle, removed. This type of boiler, on one hand, reduces significantly NO_x emission, but on the other hand the convective heat transfer characteristics is a key design factor owing to the compactness of boiler and related complexity of the flow pattern. Then, a cold model test has been conducted to understand the fundamental characteristics of flow pattern, heat transfer and flow structure at around the burner, using full-scale simulated tube-nested combustor. In this paper, the three-dimensional flow structure at the nozzle exit was investigated, and the axial distribution of the hest transfer coefficient and the surface pressure was examined.
一般社団法人日本機械学会の論文
2000-07-31