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Error when designing a heat exchanger? Guys, what’s the reason for this?

2019-06-22View Original

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Block: B31 Model: HEATX * WARNING: While generating results for the unit operation block “B31” (model: “HEATX”), the calculated feed temperature for the cold side (2.2954869D+02) does not match the value of its inlet stream (2.3061073D+02). Possible causes: loose flash tolerance, or an upstream block with different NPHASE or property settings. The calculated value will still be used in further calculations. ** ERROR: While generating results for the unit operation block “B31” (model: “HEATX”), the specified duty (8.4894869D+05) is greater than the maximum allowable value for the hot side (0.0000000D+00); therefore, the block is bypassed
Reply #22019-06-22
It was designed using a strict model and EDR; I don’t know why there are continuous errors? What’s the reason? Please help, I’m about to explode!
Reply #32019-06-22
It was designed using a strict model and EDR; I don’t know why there are continuous errors? What’s the reason? Please help, I’m about to explode!
Reply #42019-06-22
It was designed using a strict model and EDR; I don’t know why there are continuous errors? What’s the reason? Please help, I’m about to explode!
Reply #52019-06-24
The message indicates that the heat value you specified is higher than what the logistics system can provide; try reducing this value. Additionally, the warning suggests that it’s possible you are using different equation of state values in the upstream and downstream sections, which results in discrepancies between the input value from the upstream side and the calculated value generated by this module

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