流動層内水平円管周りの熱伝達に及ぼす粒子間力の影響

Febijanto IRHAN, 宮本 政英, 角田 茂利, 加藤 泰生, 栗間 諄二

doi:10.1299/kikaib.64.2303

流動層内水平円管周りの熱伝達に及ぼす粒子間力の影響

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書誌事項

タイトル別名

The Effects of Inter-Particle Force on Heat Transfer around Horizontal Tube in a Fluidized Bed
リュウドウソウナイスイヘイエンカンマワリノネツデンタツニオヨボ

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抄録

The effects of agglomerating particle on the fluidization and heat transfer characteristics around horizontal tube in the gas-solid fluidized bed were experimentally investigated. The inter-particle forces due to the liquid bridges between particles were controlled by change of bed relative humidity. The local particle behavior and instantaneous heat transfer coefficient around tube surface were simultaneously measured. It was revealed that an increase of inter-particle forces results in an increase of void fraction and a decrease of particle velocity and consequently the heat transfer coeficient decreases.