I made a change to the first concept by restricting the exhaust to 2" in order to try to increase the exit velocity. So far that seems like it is working very well. I went out and got an Acu-Rite indoor/outdoor thermometer to check what the temp drop is. It turns out that just because the name inplies accurate, there is a real reason why they misspelled it. The indoor temp looks to be good, but the outdoor one is about 5deg f high. I checked with multiple known accurate devices.
Anyway, I am seeing a real world temp drop of around 20deg f in 82% relative humidity. I am glad to see that since, there won't be much temp drop due to evaporation in this test. More to follow! Oh, It's also a good idea to do some real life testing to verify results!
