AS many people may know there are two typical types of tubes to constructing heat exchangers, which are seamless stainless steel tubes (including duplex stainless steel tubes S31083, 2205, S32750, 904L, etc) and brass tubes. But what are the advantages and disadvantages of this two different heat exchangers?
In fact, the biggest difference is not the heat transfer performance, corrosion resistance is good or bad, but is that copper tubes are less prone to fouling than stainless steel tubes, which many people might do not realize. To give a simple example, some commercial boilers are used without water treatment equipment, but using life is as long as 15 years. The reason is that although the water can foul scale in the copper wall, but it is only flocculent fouling, in this case, as long as we increase the flow of water, fouling scale can not precipitate down.
Second, is the heat transfer performance. The thermal conductivity of copper is higher than that of stainless steel, so the heat transfer coefficient of copper tube of the same shape is higher than that of stainless steel tube. So the evaporator in the evaporator with the heat transfer tubes are basically made of copper.
Third, the strength of stainless steel is higher than copper, so now we see the plate heat exchanger plate is stainless steel (of course, no other, such as titanium, graphite), but the original plate is copper of.
Of course, the price of copper is much higher than that of stainless steel
Another point is to see your application conditions to determine their advantages and disadvantages, because the different materials of the heat exchanger can play a better role in different use of the environment!
For detailed information of stainless steel heat exchanger tubes, please visit our website www.sino-alloy.com.
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