natural ventilation on a little pool in EnergyPlus

asked 2022-05-26 01:30:49 -0600

Moheete's avatar

updated 2022-05-26 08:42:08 -0600

Hi all. I am simulating a wind tower with natural ventilation in EnergyPlus. I want to add a pool under the wind tower and mix the natural ventilation in order to create evaporative passive cooling with this system. I am wonder if it is possible to simulate such a circumstance in EnergyPlus? I would really appreciate if anybody can help. Many Thanks

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Traditional Middle Eastern windcatchers come to mind. To be clear, you have already modelled such a wind tower with EnergyPlus, e.g., AFN? CFD-coupled? And are now interested in improving the model by adding an evaporative cooling pond? Have you looked into ZoneCoolTower:Shower? Not an evaporative cooling pond, but a close cousin. You could try tweaking parameters (with/without EMS) to get a closer fit.

Denis Bourgeois's avatar Denis Bourgeois  ( 2022-05-27 06:44:36 -0600 )edit

A modelling example of an evaporative cooling pond.

Denis Bourgeois's avatar Denis Bourgeois  ( 2022-05-27 06:47:01 -0600 )edit

Thanks, Denis, for introducing this system. Actually I want have AFN in my system and ZoneCoolTower:Shower does not permit to Have such a system. I wonder if there is any way to have such system with Air Flow Network?

Moheete's avatar Moheete  ( 2022-05-31 01:18:38 -0600 )edit

Right - the ZoneCoolTower:Shower is an all-in-one solution (Givoni model implemented by Kang & Strand). Not knowing the exact cooling pond scenario you're considering (e.g. still surface? fountains?), maybe simply adding a (tweaked) swimming pool would do the trick. It's an internal gain, so AFN compatible IMO. It has its contraints, but manageable. The Activity Factor seems key for calibration.

Denis Bourgeois's avatar Denis Bourgeois  ( 2022-05-31 09:12:37 -0600 )edit