Monodraught windcatcher IES

ies-ve
natural-ventilation
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I'm having difficulty simulating a naturally ventilated space using the Monodraught windcatcher components. The model will run if I don't add any heat gains to the space, however if I add any heat gains the analysis fails due to:

"Instability in room. Possible remedies: reduce time step; set radiant fraction to 0; check gain and ventilation levels; reduce MacroFlo opening areas."

Does anyone have any ideas?

181

josh.sykes

asked 2018-04-05 09:57:32 -0500

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__AmirRoth__

updated 2018-04-05 10:45:39 -0500

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Monodraught helped me get to the bottom of this. Should anyone have a similar problem in the future see below:

The thermal template assigned to the windcatchers and associated ducts should be "Monodraught WINDCATCHER/Duct" for some reason this was not being pulled in when adding the windcatcher components. Having manually loaded the template and applied it to the relevant spaces the model runs fine.

181

josh.sykes

answered 2018-04-06 08:31:59 -0500