Which kind of heat exchange effect is good for copper tube and stainless steel tube?
The heat transfer efficiency of copper tube is high, and the heat transfer efficiency is high. It is recommended to use copper pipe with internal thread, and the heat transfer area is larger
This must be the ideal copper tube for heat transfer.
The copper tube has a good heat exchange effect:1. The thermal conductivity of the copper tube is 100W/m degrees centigrade. The thermal conductivity of the stainless steel tube is 13W/m degrees centigrade. If the other conditions are the same, the heat transfer effect of the copper tube will be better,2, because the brass strength and wear reasons, wall thickness not less than 1.2mm, the stainless steel tube wall thickness can be thin to about 0.5-0.8mm, according to the law of thermal resistance, thermal conductivity constant, wall thickness is smaller, the smaller the thermal resistance, heat transfer coefficient is larger, so the stainless steel pipe can be reduced by the overall heat transfer coefficient between the wall to reduce the thickness of copper and,3. Although the stainless steel tube shortens the overall heat transfer coefficient between the copper tube and the wall by reducing the wall thickness, it is only a short reduction. Generally speaking, the heat transfer effect of the copper tube is better,4, with the growth of copper oxide layer becomes thicker, the internal dirt will be more and more, the effect of heat transfer will be worse, and not even the basic stainless steel oxidation, oxidation is relatively slow, therefore, the heat transfer effect of copper from the beginning than the stainless steel tube, with the passage of time, heat transfer the effect will be worse, copper tube used for a long time for the poor effect than the stainless steel tube,
Advantages of stainless steel heat exchange tubes:1, stainless steel thermal eunuch generally use 0.5-0.8mm thin-walled tube, improve the overall heat transfer performance, in the same heat transfer area, the overall heat transfer coefficient increased by 2-8% than copper tube,2 、 stainless steel heat exchange tube adopts high quality stainless steel alloy steel, with a strong hardness, makes the stainless steel heat exchange tube hardness increased, with shock resistance and vibration resistance,3, stainless steel heat exchanger tube wall is relatively smooth, so that the boundary layer thickness of the bottom thinning, not easy to form dirt on the inner wall,4 、 stainless steel heat exchanger pipe leak check using pressure, 5 minutes without pressure drop.Summary: in general, copper tube heat transfer effect than stainless steel tube of the heat transfer effect is good, but because of special stainless steel material, can reduce the wall thickness and pipe to shorten the gap, and the stainless steel tube is not easy to be oxidized, no accumulation of dirt, so if it is used for a long time the brass and stainless steel stainless steel tube, the heat transfer effect is better.
