[Greenbuilding] vent waste heat recovery

[Michael K. Lough]

vent waste heat recovery

A condo unit with vent stacks fed by hot water all day
and every day of  must produce a rising heat effect
.What if the vents were clustered within a greenhouse
on the flat roof and they actually vented to the
inside of a greenhouse (perhaps just in Winter 8^) ) 

 I wonder if the vent "draught" from such a level of
human activity in the condo below would heat a space
sufficiently to eliminate freezing through the winter
in the green house before exiting  through the roof of
a "growing chamber"
This is all in line with urban
green roof strategies and heat from stacks in multi
unit buildings should probably be looked at as a
resource to be saved or used in some way, on the roof.


I would think a monitoring project might be a good
start. I'm not sure of the technicalities but
measuring the air temp at the opening in February
might be a good start and the air flow pressure
upwards. 

It comes down to whether to save the heat from the
vent casings ( pricy) or from the openings of the
vents?

Michael Lough




 
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