"Reason" wrote in message
news:9tKwc.21435$B%4.2651@clgrps12...


Using a heat exchanger to reduce the humidity is a great idea, but it
wouldn't really work, because any form of air-cooling drops the air to
near
or below the dewpoint anyway. That's why air-conditioners have water
drains. I've never seen an air-conditioner or a swamp cooler that could
produce low-humidity cool air.


OK, OK commercial air-conditioners do this to a small degree. The
temperature of the air going over the evaporator fins can be a bit colder
than the mixture that comes out the vents, so you could say that the output
air is a bit above the dewpoint, therefore not at 100% humidity.