This dehumidifier/cooler topic has been discussed here before.
http://ecorenovator.org/forum/solar-...umidifier.html
Until this thread started, I didn't even know the coolerado existed. Now that I know, the wheels are turning. No wonder NREL patented this application: it would be dead easy to build the heat-mass-dehumid-exchanger.
In the NREL paper, it says that a 3 ton DVAP core measures approximately 18 x 20 x 20 inches in overall size. Each layer is 1/4 inch thick, so that would make it around 70 layers thick. During normal operation, it takes 400 cfm per ton of cooling.