Has anyone modeled an indoor swimming pool with HAP before? If so, how did
you approach it?

I have used ASHRAE to calculate the dehumidification load and have entered
that into the space as an "Internal - Miscellaneous - Latent" load with a
schedule based on the pool activity level.

I was wondering how to enter the radiant load due to the warm pool surface,
or whether to ignore that since the pool temperature is usually within a
couple degrees of the room temperature.

What else am I missing?

This model is for calculating the required equipment capacities and is not
being reviewed for LEED, etc.

Thank you in advance.

Michael L. Hardy, PE, F.NSPE
Black Oak Engineering, Inc.
Cell 503.314.5244