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Monodraught windcatcher IES
 
  
 
  
 
 
 
 
 
 
    
        
        asked 7 years ago  
 
 josh.sykes's avatar  
 
 
 
 
    
        
        updated 7 years ago  
 
 __AmirRoth__'s avatar  
 
 
 
 
 
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?
 
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        answered 7 years ago  
 
 josh.sykes's avatar  
 
 
 
 
 
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.
 
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        Asked:  7 years ago  
 
 
        Seen: 619 times 
 

        Last updated: Apr 06 '18 
 
 
 
 
 
 
 
 
 
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