Seeking help with heat exchanger design and selection
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I would like to ask experts: I am dealing with a high-temperature heat exchanger, and Aspen-EDR is being used for its selection and design. The design files are attached (version V9.0). The heat exchanger selected by the calculations is shown as a series of 3 shell-side heat exchangers. What does this mean? Is it difficult to manufacture such a heat exchanger? Are there any better alternatives? Thank you!
My understanding is that three heat exchangers are connected in series
You are using verification mode, where all structural parameters can be chosen freely – wasn’t it you who designed the arrangement of 3 heat exchangers in series?
I switched the heat exchanger from design mode to verification mode, and then made adjustments to the heat exchanger in design mode; that’s the result I got! In design mode, there are also heat exchangers with a single tube pass and a single shell pass, but they seem too large and their equipment cost is too high!
Your heat exchanger isn’t that large either – wouldn’t it be more costly to make 3 of them separately rather than just one?
1 Since having 3 units in series seems excessive, change the specifications of the heat exchangers. 2 Moreover, using 3 heat exchangers with a diameter of 600 results in a high pressure drop when connected in series. 3 The calculation program offers various options, and one can also adjust the parameters to obtain satisfactory results
Hello, is the Aspen-EDR tool suitable for the selection and design of plate heat exchangers?
The design temperature is over 450°C, so a plate heat exchanger probably isn’t suitable!
U-tube heat exchangers are generally used for high temperatures; 400 tubes mean 800 ports. The diameter of DN600 isn’t sufficient to accommodate the tubes, which is why 3 units are shown – manufacturing it should still be possible.