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热力发电  2014 

较大直径倾斜圆管内蒸汽凝结换热实验关联式研究

, PP. 79-82

Keywords: 较大直径,倾斜管,凝结换热,实验关联式,误差

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Abstract:

对较大直径倾斜光滑圆管内蒸汽凝结换热特性进行了实验研究。实验结果表明,shah、würfel和akhavan?behabadi关联式应用于较大管径倾斜管道的凝结换热误差均大于30%,但akhavan?behabadi关联式的误差相对较小;对akhavan?behabadi关联式进行修正得到了1个新的实验关联式,将该实验关联式应用于较大管径倾斜管道的凝结换热,其误差小于15%。因此,修正后的凝结换热关联式适用于较大管径的倾斜换热管道凝结换热。

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