Consider to use off-the-shelf available counter flow heat exchanger for Kasamodo ventilation heat-exchange?

20260822

I wonder what counter flow heat exchangers there are to buy off-the-shelf and use fo the kasamodo ventilation heat exhanger?

• Consider youtube video This Device Goes Past Equilibrium

It seems there are counter flow heat exchangers for beer brewing?

• En plattvärmeväxlare verkar kosta bara en tusenlapp 30 rader 66 kW Plattvärmeväxlare

• Och man kan få en för ölbryggning för 2000 SEK Grainfather G30 Counterflow Chiller Grainfathers populära motströmskylare

I wonder if it is also possible to actually build a counter flow heat exchanger at home?

• Imagine an inner copper pipe.
• Then solder on a copper wire in spiral around it.
• Then therad an outer plastic hose onto it?

I can then have one curcuilt of water flow outside the inner coppeer tube in the outer tube. And of cource the otrher curcuit of water flow in the inner tube.

• If I combine these curcuits with large computer chillers for water cooled PCs in the in and out ventilation stream, I in effect have a air-to-air heat exchange?

Question is though if this is just overengeneering the heat exchanger?

• Maybe a direct air-to-air counterflow heat exchanger is simpler?
• But then I have to deal with cleaning the heat exchanger from dust and debree in the air flow?

• But then, I have the exact same problem even if I use the water counterflow heat exchanger?

  • I mean, I still have to have the heat absorber and dispenser in each airflow to clean?

It seems it all comes down to what design is the most cost effective to build or buy and maintain?

Either way, I think the way to go is to design the cavity where the hest exchanger goes to be usable for either design?

• Fixate the dimensions and design of the four air vents that connects to the heat exchanger.

  • One inlet for outside in-air
  • One outlet for chilled out-air
  • One inlet for heated osutside air
  • One outlet for warm inside air.

Fixating these dimensions together with a seal mechanism should then allow the heat exchanger design to be inserted or removed into the designed cavity.

• Swap for a new one (new or same design)
• Take out for maintenance.