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dc.contributor.author江晴山en_US
dc.contributor.authorChing-Shan Chiangen_US
dc.contributor.author盧定昶en_US
dc.contributor.authorDing-Chong Luen_US
dc.date.accessioned2014-12-12T02:16:00Z-
dc.date.available2014-12-12T02:16:00Z-
dc.date.issued1995en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#NT840489042en_US
dc.identifier.urihttp://hdl.handle.net/11536/60959-
dc.description.abstract以實驗方法探討冷媒R-22與三元非共沸混合冷媒R-407C在6.5mm平滑管內 兩相流動流譜,壓降與對流蒸發熱傳係數.實驗結果顯示在相同質量速度與 乾度下,R-407C流譜的發展較R-22會有延遲的現象,而觀測流譜與Weisman 流譜圖相當吻合,同時Klimenkov和Fyodorov的關係式對本實驗結果也有很 好的預測性.此外,液態摩擦乘數與觀測流譜有很大的關係,且在低質量速 度,流譜為層流/波浪流時,液態摩擦乘數為質量速度的函數.在相同的實驗 條件下,R-407C熱傳係數會低於R-22的熱傳係數.R-22及R-407C的熱傳係數 均隨熱通量,質量速度及飽合溫度的增大而增大,與實驗觀測的流譜有密切 的關係.在低質量速度時,熱傳係數會與熱通量的 0.67次方成正比.zh_TW
dc.language.isozh_TWen_US
dc.subject雙相流；流譜；摩擦因子；摩擦乘數；熱傳係數zh_TW
dc.subjecttwo-phase flow;flow pattern;frictional multiplier friction factor;;heat transfer coefficienten_US
dc.title冷媒R-22與三元非共沸混合冷媒R-407C在平滑管內之蒸發熱流分析與比較zh_TW
dc.titleInvestigation and Comparison of Convective Evaporation of R-22 and Ternary Nonazeotropic Refrigerant Mixture R-407C in a Smooth Tubeen_US
dc.typeThesisen_US
dc.contributor.department機械工程學系zh_TW
Appears in Collections:Thesis


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