Supply air temperature from vents

mspider · Posts: 76

Hi Team,

I'm running a simple perimeter office model that approximates chilled beam supply and return air vents. There doesn't seem to be anything wrong with the model setup or grid, etc, however when I check the temperature results with a CFD slice, the temperature out of the supply vent is much greater (at ~20°C) than the set point in the model of 12°C. (See attached files)

I've tried to modify the grid so that there are a few extra cells just below ceiling height to catch a view of the air flow and temperature as it exits the vent. But I still can't say for sure that the input boundary conditions are being correctly applied.

Is there a way to verify that the supply temperature is indeed 12°C? Or have I made a mistake with my inputs?

On a more general note it would be fantastic if we could get slices (or just output info) to verify that the boundary conditions are working as we want them.

Your help is, as always, appreciated.

Thanks
Matt

mspider · Posts: 76

I've added another image that didn't load in the original post.

mspider · Posts: 76

One further note: the latest CFD analysis was named SA_12degCv3

Steve Potter · Posts: 616 Location: newcastle

Matt,

Have you tried reducing the temperature range for the display to get a better idea of the inlet temperature (i.e. lower the minimum display temperature to 12C)?

Regards,

Steve

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