Re: closed dryer heat exchanger?

On Mar 25, 12:02 pm, cade.robin...@xxxxxxxxx wrote:
I have been looking for something that probably doesn't exist for
reasons I don't know.

I am trying to find out if there is such a thing as a heat exchanger
for a dryer that would attach like a humidifier to a furnace?

I have read MANY posts and articles about just piping the exhaust of
the dryer into the house and how bad that is with lint and moisture.

What I am looking at is something like an air-air exchanger where each
"circuit" is closed.

So the dryer would still exhaust outside but on the way it would flow
through a box that is on the cold air return of a furnace. The
furnace would suck air through the box and collect some of the heat.

Just curious if anyone has ever seen anything like this, if it is even
feasible, and what issues this would cause?

As a mechanical engineer, I have thought about it for a long time

buying, if available....haven't seen one

OR

building one...haven't done it for a number of reasons

I live in SoCal so my heating demands are not all that high. the
temperature differences involved are pretty low so heat transfer won't
be great, the air stream is a little dirty (so maintenance will be an
issue), air stream contains mositure so condensation, corrosion &
freezing will (can) be issues. The heat ($'s) saved (at least for my
potential installation) won't justify the cost. My laundry room /
porch is tiny and incorporating a heat exchanger into the system would
be a lot of work.

This does

.

Relevant Pages

  • Re: Feb 1945 Me-264 Hybrid Design
    ... The basic idea is to recover the engines exhaust heat, ... lacking in pressure still has heat, in a heat exchanger and to use ... turbine inlet temperature to less than 475C. ... His later Cs-1 ehich was to power the RNI 1 ...
    (rec.aviation.military)
  • Re: Hot water to forced air
    ... velocity  of water in the primary side..(in the first vertical ...  And HOW MUCH HEAT IS TRANSFERRED ... know the specific air entry temp that resulted in those ... the hot and cold sides of the heat exchanger is greater. ...
    (alt.home.repair)
  • Re: stainless steel pipe style coffee roaster
    ... are there pics of your heat exchanger posted anywhere? ... roast chamber that directs the heat back down. ...
    (alt.coffee)
  • Re: Hot water to forced air
    ... velocity  of water in the primary side..(in the first vertical ...  And HOW MUCH HEAT IS TRANSFERRED ... know the specific air entry temp that resulted in those ... the hot and cold sides of the heat exchanger is greater. ...
    (alt.home.repair)
  • Re: Hot water to forced air
    ... velocity  of water in the primary side..(in the first vertical ...  And HOW MUCH HEAT IS TRANSFERRED ... know the specific air entry temp that resulted in those ... the hot and cold sides of the heat exchanger is greater. ...
    (alt.home.repair)