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題 名 | Methanol Flow Boiling Over a Nonuniformly Heated Surface=非均勻加熱面之甲醇流動沸騰 |
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作 者 | 林文煒; 李篤中; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 29:1 1998.01[民87.01] |
頁 次 | 頁17-23 |
分類號 | 460.02 |
關鍵詞 | 非均勻加熱面; 甲醇; 流動沸騰; Flow boiling; Neutral stability; Methanol; Experiments; |
語 文 | 英文(English) |
中文摘要 | 本文探討非均勻加熱平板上之甲醇流動多態沸騰實驗結果,得到核沸騰和膜沸騰 穩定共存之中性穩定軸向熱通量分佈,低於此分佈之核沸騰較膜沸騰更為穩定;反之高於此 分佈時膜沸騰更為穩定。 本文報告過冷度 10K 下於不同系統壓力及流量之甲醇其核膜沸騰 的相對穩定性。實驗結果熱傳導加熱表面應僅存一條「真實」之過渡沸騰曲線。 |
英文摘要 | This work had experimentally investigated the stability characteristics of nucleate and film boiling modes of methanol flowing over a nonuniformly heated flat plate. An axial (discrete) heat flux versus surface temperature distribution at which nucleate and film boiling can coexist steadily is identified at atmospheric and subatmospheric pressures and three liquid crossflow rates. Below this distribution, nucleate boiling mode is more stable; while above which, film boiling is more stable. Effects of system pressure and liquid crossflow rate were reported. This work discussed the co-existing heat fluxes and suggested the existence of a unique rather than two transition boiling curves, to the latter that is generally accepted in the literature, on a conductively heated surface. |
本系統中英文摘要資訊取自各篇刊載內容。