[TRNSYS-users] Future Weather file Simulation

[David BRADLEY]

Shameem,
I don't think that the weather file is entirely at fault. Certainly the 
weather conditions are what causes the problem but more likely, it is 
the window data that causes the problem. the first thing to try is to 
make sure that not only is the internal convection coefficient set to 11 
kJ/h.m2 but that the external convection coefficient is also a constant 
(64 kJ/h.m2 perhaps). If that does not solve the problem, use Window5 to 
see if you can adjust the window properties slightly, put the new 
results into your *.b17 (or *.bui file if you are using Trnsys16) and rerun.
Kind regards,
David


On 8/16/2011 01:10, Mohammad Shameem Sauhoboo wrote:
> Hi,
> I am trying to simulate future design summer year (DSY) weather files for the
> year 2050 and 2080 medium emission scenario from the UKCP09 on TRNSYS. And my
> location is London Heathrow. I got the weather files from:
>
> http://centres.exeter.ac.uk/cee/prometheus/downloads.html
>
> When i try to simulate the 2050 DSY future weather file, it only works for
> 2881-8760 hours, whereas for 0-2880 hours it says there are errors. for example:
> zone 1 surface 5 pane temperature calculation id diverging at time 331TDIF:
> 0.00658 ITPANE : 31 ITCALC : 51
>
> The heat transfer coefficient is 11 on the window manager though.
> I really need your help.
> Thank you for your kind consideration.
> Shameem
>
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>

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David BRADLEY
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