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Flash Failure In Calculation In Heat Exchanger Hysys

Started by AHMEDENAS3385, Jun 25 2021 05:52 PM

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#1 AHMEDENAS3385

Brand New Member

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1 posts

Posted 25 June 2021 - 05:52 PM

WHY THE HEAT EXCHANGER SIMULATION APPEAR FLASH FAILURE CALCULATION WHEN I PUT THE SHELL SIDE PARAMETER (H2O) INLET temperature 42 and 80 and tube side gas (co2) inlet temp. 97 and calculate out let appear flash failure calculation...where the problem plz

#2 Pilesar

Gold Member

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1,576 posts

Posted 25 June 2021 - 06:07 PM

By setting the water side temperature difference and flow rate, you are also fixing a duty for the exchanger. I suspect when you apply that duty to the gas side, the resulting gas condition would be unrealistic. The simulation cannot supply a converged answer for the conditions you supplied.

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