EFFECTS OF REPEATED HIGH-TEMPERATURE CYCLES ON THE THERMAL CONTACT RESISTANCE OF BIMETALLIC FINNED TUBES

被引:0
|
作者
Piir, A. E. [1 ]
Roshchin, S. P. [1 ]
Vereshchagin, A. Yu. [1 ]
Kuntysh, V. B. [2 ]
Minnigaleev, A. Sh. [3 ]
机构
[1] Arkhangelsk State Tech Univ, Arkhangelsk, Russia
[2] Belarus State Technol Univ, Minsk, BELARUS
[3] Oktyabrskkhimmash ZAO, Minsk, BELARUS
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中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Measurements have been made on the thermal contact resistance (TCR) in repeated cycles of heating to 270 degrees C and cooling to 50 degrees C in experimental specimens of bimetallic finned tubes having roll and strip fins. Tenfold heating-cooling cycles increase the TCR of these tubes in the cold state by factors of 1.5-2.5.
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页码:519 / 522
页数:4
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