著者

平井 秀一郎 高城 敏美 田中 和洋 来田 憲治

出版者

一般社団法人日本機械学会

雑誌

日本機械学会論文集 B編 (ISSN:03875016)

巻号頁・発行日

vol.53, no.486, pp.p432-437, 1987-02

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Experimental studies have been conducted to investigate the effects of the swirl on the turbulent transport of momentum in a concentric annulus with a rotating inner cylinder. Direct measurements of turbulent transport of momentum were made by correlating fluctuations of two velocity components which were detected by a two-color laser Doppler velocimeter. It was observed that the Reynolds stresses increse due to the swirl. The magnitude of the production terms of the transport equations of the turbulent fluxes of momentum were estimated. The dominating terms are pointed out to illustrate the processes of interactions between momentum fluxes and the swirl.

著者

辻 正 寺井 勇三 大岡 五三實 宇多田 修 木下 進一 高城 敏美

出版者

一般社団法人日本機械学会

雑誌

動力・エネルギー技術の最前線講演論文集 : シンポジウム

巻号頁・発行日

vol.2004, no.9, pp.165-168, 2004-06-22

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This paper proposes the early stage Plan that Iron works and Refinery cooperate to save energy and to increase Co-production Blast Furnace process is originally Co-production process (Iron production & Gasification production) Excess fuels (asphalt & pulverized coal) injecting into Blast Furnace is gasified high-efficiently (95〜98%) At the early stage Plan, Excess fuels are asphalt 60kg/ton-pig iron and pulverized coal 65kg/ton-pig iron. This Blast Furnace Gasification System and BFG (Blast Furnace Gas) Combined Cycle Power System are optimized in a typical Iron works model (6mihon ton/Y steel product) with Pinch Technology method This Optimization yields Power (559MW) and surplus COG (Coke Oven Gas) that is exported to Refinery Energy saving 13% of total Iron works energy consumption is estimated.