套管式換熱器結構變化對換熱能力影響的模擬研究

摘要：作者：廖百勝 關鍵詞：暖通空調論文,套管換熱器,數值 【中文摘要】 運用ANSYS公司的CFX計算流體軟件對內徑分別為10mm、16mm,壁厚1mm,管段長1000mm的逆流式套管換熱器在內管安置同心和偏心等3種狀態在不同工況下進行了數值模擬,得到了管內流體的速度與溫度分布,并比較了3種情況下的換熱系數。從結果分析得到隨著偏心距的增加,套管的換熱效果逐步下降。 【英文摘要】 This article apply the CFX computational fluid software of ANSYS software company to casing tube heat exchanger of inside diameter of 10mm, 16mm, wall thickness of 1mm, pipe sections of the counter-flow 1000mm long, including concentric and eccentric placement of three kinds of state and other conditions in different conducted, draw a conclusion that the speed of the fluid and temperature distribution in the tube, and compared the case of three kinds of heat transfer coefficient. 【中文關鍵詞】 套管換熱器; 數值模擬【英文關鍵詞】 Heat exchanger casing; Numerical Simulation