4 ms·
HVAC systems. The outgoing air goes through a heat exchanger to transfer heat to the colder incoming air.
by datameta 6y ago
HVAC systems. The outgoing air goes through a heat exchanger to transfer heat to the colder incoming air.
- amluto 6y agoAs far as I know, most HRVs are cross-current. I don’t know why.
- pfdietz 6y agoAvoiding condensation? Rotating disk heat recovery devices can also recover humidity.
- amluto 6y agoI think most HRVs have condensation drains, so I doubt that avoiding condensation is the major consideration. I would guess it’s more of a geometric consideration. A square cross-current heat exchanger can have each port on a different side, so the whole perimeter is used. A counter-current exchanger would have two ports on each of two sides and no ports in the other sides, leading to a rather more complicated and larger arrangement.