Selection of heat exchangers for large temperature differences
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-For heat exchange between 30 degrees and 100 degrees, which type of heat exchanger is suitable? Please, experts, share your advice.
What medium, is there a phase change?
Use shell-and-tube heat exchangers, with several of them connected in series.
I also have this question and would appreciate it if an expert could help answer it. In this setup, the gas flows through the shell side while the circulating water flows through the tube side, thereby enabling gas-liquid separation. The temperature difference of the circulating water is not significant, but the temperature difference of the material being processed is 100 degrees Celsius – one side is at a higher temperature and the other at a lower one. Could this cause the tubes inside to twist and deform, leading to leaks? The material in question is dangerous, as it is flammable and explosive
For a fully welded bar, thermal stress deformation should be taken into consideration
Two devices can be used to meet the heat exchange requirements in two separate steps, which reduces the temperature difference. It’s a crude method, but it’s definitely effective.
It can be cooled by air first and then by water, but the specific method depends on the actual operating conditions