| No problem. And your inputs may help me explain the last differences I observe... Building features are: - size : ground area = 1500m² and h = 3m - localized in south of France - north window area = 80m² (U=2.95, g=0.77) - est and west window area = 50m² (U=1.1, g=0.4) - south window area = 45m² (U=2.95, g=0.77) - no shading due to environment - internal gain (people, light and computers) => both simulators are very closed regarding computation of internal gains. You can find attached an excel file with simulation results (over a complete year) for 2 cases (with and without window). 1) With window: After solving the window frame issue, zone transmitted solar energy differences seem to be acceptable. What do you think? Regarding cooling needs, the biggest differences are observed during winter time but the cooling demand is also quite low. Do you have any idea to explain this? 2) Without window: The total result over the complete year is very close (1% difference) but looking at months individually, we can remark that the errors compensate themselves. Do you have any idea to explain this? Regards Herve Message original Re : Re: Re : RE: [EnergyPlus_Support] Energy Plus vs TRNSYSDe : Richard Raustad <RRaustad@xxxxxxxxxxxx>A : EnergyPlus_Support@xxxxxxxxxxxxxxx Date : 2010-07-22 14:37:29 Would you mind reporting a little more detail on the comparison? How |
Attachment not found: d:\eudora\attach\EP vs TRNSYS1.xlsx