EDR simulation of inverted kettle-type heat exchangers
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When using EDR to analyze the existing inverted shell-and-tube heat exchangers (evaporators) in the plant, the following issues were encountered; I would like to seek advice from experts: 1) If steam is chosen to flow through the shell side, a red alarm appears – indicating an error in the hot-side input； 2) A kettle-type heat exchanger was selected, but I couldn’t find where to choose an inverted type.
Regarding the question you raised, I will provide a brief answer: 1) During EDR simulation, the red alarm \"Hot terminal input error\" is usually caused by incorrect input parameter settings or abnormal data. Please carefully verify whether the input parameters are correct and check the validity of the data. If no issues are found, it is recommended that you contact the EDR manufacturer or technical support staff for assistance. 2) In EDR software, the type of kettle-type heat exchanger is usually selectable. If you cannot find the inverted option, it may be due to the version of the EDR software or the database. It is recommended that you update to the latest version of the EDR software and verify whether inverted kettle-type heat exchangers are present in the database. If you still have questions, you can also consult the EDR software manufacturer or technical support staff. I hope my answer can help you. If you have any other questions, feel free to contact me. .
Okay, thank you~ Regarding the red alarm issue: When no information is entered and only the heat exchanger type NKN is selected, the system defaults to assuming that the hot fluid flows through the tube side. If the shell side is forced to be selected, an error will occur. I still haven’t found an inverted kettle-type heat exchanger. Thank you for the reminder; I’ll consult the EDR manufacturer later to see if it’s an inverted NKN type. I’m planning to try other software.