1、铜管的导热系数是100W/m℃,不锈钢管的导热系数为13W/m℃,假设其他条件相同,铜管的换热效果更好,
2、铜管因为强度和磨损原因,壁厚不能低于1.2mm,不锈钢管的壁厚能够薄到0.5-0.8mm左右,根据导热热阻规律,导热系数不变,壁管厚度越小,导热热阻越小,传热系数越大,所以不锈钢管的能够通过减小壁厚来减小和铜管之间的全体传热系数,
3、虽然不锈钢管通过减小壁厚来缩短和铜管之间的全体传热系数,可是也仅仅是缩短,全体来说,还是铜管的热换效果更好,
4、跟着时间的增长,铜管氧化层会越来越厚,内部尘垢也会越来越多,传热效果会越来越差,而不锈钢底子不会氧化,算氧化也比较缓慢,因此,铜管的热换效果从一开端比不锈钢管的好,跟着时间的推移,热换效果会越来越差,运用很长时间的铜管热换效果比不锈钢管的差,
总结:一般情况下,铜管的热换效果比不锈钢管的热换效果好,可是不锈钢因为原料比较特别,能够削减壁厚来缩短和铜管之间的差距,而且不锈钢管不易被氧化,内部不会积累尘垢,所以假设是运用很长时间的铜管和不锈钢比较,不锈钢管的热换效果更好。
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