循環流動層内水平細線周りの熱伝達特性 : 細線径/平均粒子径の相対的大きさと平均熱伝達率(熱工学,内燃機関,動力など)

概要

論文の詳細を見る
Experimental study on the heat transfer mechanism from a horizontal fine platinum wire to particles was carried out in a riser of a circulating fluidized bed(CFB). As an experimental apparatus, the riser duct consisted of 33.7mm squared cross sectional area and 1620mm in a height. The test section was installed at the suitable height (0.9 m) from a distributor. Both the particle diameters (d_p) and the wire diameters (d_w) were 100, 200 and 400 μm. As the results, it was found the significant relationship between the particle behavior and the characteristics of heat transfer around a horizontal fine wire in CFB was found. It was found out that the heat transfer coefficient for the case of d_p<d_w was larger than that for the case of d_p>d_w in the turbulent fluidization region. It was also found that there were some relationships between the gas velocity and the characteristics of the heat transfer around a horizontal fine wire in the dilute fluidization region.
社団法人日本機械学会の論文
2002-11-25