I'm buying a house in Edmonton Alberta Canada, where the conditions are
typically dry and dusty and hot in the summer.
I plan on installing a HRV to control basement humidity and keep the
air fresh in the winter.
The house doesn't have an airconditioner and if it's dusty, opening the
windows would bring in mess with the cooler night air. Running the HRV
would heat the incoming air with the energy in the house air at night
and maintain the temperature in the house during the day, so that's not
a terribly effective option. So here's the question.

If I add an atomizing humidifier to the return line to the HRV (between
the house vents and the HRV) to spray water into the house air being
exhausted, will there be enough of a temperature drop in the humid
exhaust air to get a cooling benefit in the dry incoming air? Do these
atomizing humidifier units send enough vapour into the air stream to
create a cooling effect or is the amount of water required beyond their
capabilities? I've seen a small unit at HomeDepot but can't recall the
volume output, the unit I've found on the web is about 6.5L/hour

From what I've read about swamp coolers they cool the air by
evaporation but the humidity in the house increases, I'm more
interested in keeping a reasonable humidity level in the house and
cooling the house.

Thanks in advance

MacGregor