Help in selecting the wall thickness of heat exchanger tubes
Thread Content
Design a BKM type tube heat exchanger. The tube side medium is compressed air with a pressure of no more than 10 bar. The shell side medium is water with a pressure of about 4 bar. The tubes are made of SS304 stainless steel. Since the corrosion allowance is not considered, is it feasible to choose tubes with an outer diameter of 20mm and a wall thickness of 0.9mm? It stands to reason that there is no problem with compressive strength, but if you are worried about other problems, please ask experts for advice.
The thinner the wall thickness, the better for heat transfer, but welding factors must also be considered. 0.9mm I think it shouldn’t be a big problem
What is the wall thickness of the heat exchange tube? Can you calculate it? What we produce is basically 1mm or 2mm?
Reply to 1# flyfire816 The tube with a wall thickness of 0.9mm is not feasible. It's not a matter of strength, it's mainly in line with the rules. Firstly, the 0.9mm tube does not seem to be a common product from steel mills and cannot be purchased on the market. Secondly, the heat exchange tube must have a certain stiffness.