How to troubleshoot EDR input error 1122 “Input for Str.1 Quality (vap. Frac), 1 is beyond the permitted range, from 0 to 0”?
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Aspen Shell and Tube Exchanger
Last Updated:
03-Nov-2020
Last Updated:
03-Nov-2020
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Article ID:
000097136
Article ID:
000097136
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Problem Statement
How to troubleshoot EDR input error 1122 “Input for Str.1 Quality (vap. Frac), 1 is beyond the permitted range, from 0 to 0”?
Solution
You will see this error message if you didn't enter the complete vapor phase properties in the stream properties table. For example, in the screenshot below, the vapor phase density is missing. With only the liquid phase properties entered, EDR will only allow pure liquid phase in that stream (vapor fraction=0).
If you enter a value for the vapor phase density in the stream properties, then the error message will disappear.
Key Words
Error 1122
Stream properties
Vapor fraction