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[EnergyPlus_Support] Comparing UFAD and CBAD Systems



Dear E+ Supporter,

Please find on files folder two files under 5ZonesUFAD and CBAD5Zones. I tried on these identical gemotry and materials building to compare two different air distribution systems. Conventional type (Ceiling based air distribution) with new type which known by underfloor air distribution system. However, the resutls showed unacceptable output where the centeral plant, cooling coil, fan, pumps, HVAC sizing for the UFAD is higher than the conventional. Also, I noticed that the volume of conditioned spaces are not identical although the files set to the same. Could you kindly look at those files and let me know what might the source of problems.

Best Regards
Ali



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