EDR simulation error
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The EDR simulation encountered an error; I hope experts can offer some guidance. The flow rate for this project is low, at 150 kg/h on each side. The attachment is a simulated file; just remove the RAR.
The size of the heat exchanger you specified is too small to meet the given heat load, which is why an error is reported. You can first use design patterns to roughly estimate the heat exchange area.
Thank you for the reply. I gave it a try; using design patterns to estimate the area also resulted in errors.:
I’ve tried many times, but it still doesn’t work. Could someone with more experience give me some advice?
Figure 1 shows the reason why your calculations cannot converge, as it is theoretically impossible to achieve that. Figures 2 and 3 show the modified versions.
Thank you very much for your reply during the New Year period. In this process, the material from the shell side is sent to the reactor where it undergoes a slight amount of hydrogenation; thereafter, it is sent to the tube side to exchange heat there. As a result, the mass on both sides of the heat exchanger is equal, at 150 kg/h each, with only very slight differences in composition. Also, I really don’t understand much about curves; please give me some advice!
The blue curve represents the temperature distribution in the tube side, while the red curve shows the temperature distribution in the shell side. The hot material is located on the tube side; based on the calculations using property data, it can be seen that the curve for the shell side (cold material) is higher than that of the tube side (hot material), which is not theoretically feasible. If the mass flow rate is correct, then the problem must lie in the property data (latent heat?) Specific heat? )...
Actually, this was imported from ASPEN; in ASPEN heat exchange is possible normally, but I don’t know why it doesn’t work here