How can I define openable window (half open) in Energy+?

asked 2019-10-11 08:06:10 -0500

kaca's avatar

updated 2019-10-15 05:36:57 -0500

Hi i want define openable window in energy+, i use tool Zone:Ventilation:WindandStackOpenArea. Before I created new schedule for night ventilation, which was used in Zone:Ventilation:WindandStackOpenArea. When I get outputs i have problem with ari change rate, the value are 45 ach. Where i made mistake? It is nessesary set something else? I tried change opening area from 1,7m2 to 0,455m2 but air change rate was still 45ach, what is strange for me. Thank you image description

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Can you paste your ZoneVentilation:WindandStackOpenArea object so we can look at what you put in it?

Julien Marrec's avatar Julien Marrec  ( 2019-10-15 05:37:58 -0500 )edit

Hi, i used this setting: opening area: 1,72m2 (high: 1,15m width: 1,5m), opening effectivness: autocalculate, effective angle: 127 (east), height difference: 1m, discharge coeffficient for opening: autocalculate. Then air change rate is 89,7 ach, volume of my zone is 47m3. I didn't set temperature and wind speed limits, i want investigative what happened when window is open during night (i setted schedule for window openable). I checked weather data- wind speed was around 3 m/s. Also I want ask you if it possible set with this tool se angle for ventilation of window (for example 10°) Thanks

kaca's avatar kaca  ( 2019-10-15 06:06:09 -0500 )edit

Paste the snippet please, the actual IDF object. It'b be more readable. You can edit your question and paste it inside a code block (4 space indentation, or click the 0101 button)

Julien Marrec's avatar Julien Marrec  ( 2019-10-15 15:20:43 -0500 )edit