wrote in message
...
daestrom wrote:

...starting with air at 55F at 100% RH (call it state 'A'), if you run it
through 'some process' to get to 65F at 30% RH and some condensate (state
'B'), you have to add 2.4 BTU sensible heat to warm each pound of air, and
the vapor releases 5.3 BTU/lbm of latent heat to condense the water vapor
from one pound of air, so you have a net excess of 2.9 BTU for each pound
of
air you run through this 'process'.

But that doesn't tell you how much energy you have to expend to get each
pound of air from point 'A' to point 'B'.

That energy heats the house, like electric resistance heating. The net COP
is about 1.6.

Were do you get this particular number? How many kwh / lbm of condensate?


We can also ignore the small amount of heat removed from the
liquid water if it leaves the house below room temp.

True.

daestrom