DIY ventilation heat exchanger - Page 43

ham789 · 07-29-13, 05:41 PM

I stumbled across a turbocharger intercooler and said, "What the heck" and bought it for $5.
Plan is to stick it diagonally in the window so the ports
fall inside and outside the plane of the window. Been trying
to figger out how to make the air pass thru multiple times
to create something more like a cross-flow exchanger.
But it's so massive that it might not make much difference.

If I can figure out which car it fits, I might be better off selling
it and buying a real HRV.

Ideas?

RobbMeeX · 07-29-13, 10:13 PM

Sell it man, use money for a better heat exchanger. I say this as a person that could use an intercooler.

geodans · 11-11-13, 03:37 PM

Hi there, new guy here, great thread, lots of great stuff, anyone working on anything at this time??
I've just acquired a number or sheets of 4mm corrugated plastic (sign material) and am about to start hacking it up and stacking an HX... I see that the cross-flow approach is really simple to build, and I also see a lot of reference to counter-flow... (as in two cross-flow HXs "configured in a counter-flow configuration" I'm having a hard time understanding how 2x cross-flow = counter-flow... but that's anothe thing...) so I 'm wondering how others might have approached configuring sign material in a manner that the opposing air streams are in true counter flow configuration as opposed to 90* angle to each other... Descriptions would be nice, but I'm a visual person so a diagram or picture is worth a million words for me... Any help would be appreciated!

AC_Hacker · 11-13-13, 12:39 PM

Quote:

Originally Posted by geodans

...I see that the cross-flow approach is really simple to build, and I also see a lot of reference to counter-flow...

Hey, I have a substantial stack (1' x 1' x 1.5') of pre-cut pieces that you can have for free... I used them for experiments (which worked just fine) and have decided to use a different approach.

Washougal is close to Portland, right?

Do you want them?

-AC

geodans · 11-13-13, 12:45 PM

yeah! I'll take em! I'm just about to head to Portland... how do we connect?

AC_Hacker · 11-13-13, 01:42 PM

Quote:

Originally Posted by geodans

yeah! I'll take em! I'm just about to head to Portland... how do we connect?

Send me a private message or email.

-AC

geodans · 11-13-13, 02:16 PM

It's not letting me... not enough posts... email me if u can...

geodans · 11-13-13, 08:50 PM

It was a pleasure meeting you today AC! Thanks again for the HX material! I'll keep the group posted on how it's put to use.

We'll need to get together again soon and conspire to save some energy! (Let me know if you got my email)

AC_Hacker · 11-14-13, 02:35 AM

Quote:

Originally Posted by geodans

It was a pleasure meeting you today AC! Thanks again for the HX material! I'll keep the group posted on how it's put to use.

We'll need to get together again soon and conspire to save some energy! (Let me know if you got my email)

geodans, great to meet you, too.

I'm glad to be able to help you on your HRV project.

Your new home build sounded pretty spectacular from a EcoRenovator point of view. I don't know if you did much in the way of progress photos, as you went along, but if you did I, think they belong on a new thread. You may have established a new high water mark.

Yes, I did get your email...

Keep in touch.

Best,

-AC

kostas · 01-29-14, 03:47 PM

Quote:

Originally Posted by Fornax

So this summer, after some other projects around the house, I will be rebuilding my HRV with one of these heatexchangers inside. I'll probably use the RS160 with a height of 250 or 300mm.

Fornax

Hey Fornax,

Any news about your hrv? Did you get those heat exchangers from recair?

07-29-13, 05:41 PM	#421
ham789 Helper EcoRenovator Join Date: Dec 2011 Location: tigard, oregon Posts: 42 Thanks: 0 Thanked 4 Times in 4 Posts	Intercooler I stumbled across a turbocharger intercooler and said, "What the heck" and bought it for $5. Plan is to stick it diagonally in the window so the ports fall inside and outside the plane of the window. Been trying to figger out how to make the air pass thru multiple times to create something more like a cross-flow exchanger. But it's so massive that it might not make much difference. If I can figure out which car it fits, I might be better off selling it and buying a real HRV. Ideas? Attached Thumbnails

07-29-13, 10:13 PM	#422
RobbMeeX Eco OWNER!! Join Date: Jul 2012 Location: ATL Posts: 99 Thanks: 25 Thanked 7 Times in 6 Posts	Sell it man, use money for a better heat exchanger. I say this as a person that could use an intercooler. __________________ In it for the money (savings) Last edited by RobbMeeX; 07-29-13 at 10:17 PM..

11-11-13, 03:37 PM	#423
geodans Lurking Renovator Join Date: Nov 2013 Location: washougal Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	Hi there, new guy here, great thread, lots of great stuff, anyone working on anything at this time?? I've just acquired a number or sheets of 4mm corrugated plastic (sign material) and am about to start hacking it up and stacking an HX... I see that the cross-flow approach is really simple to build, and I also see a lot of reference to counter-flow... (as in two cross-flow HXs "configured in a counter-flow configuration" I'm having a hard time understanding how 2x cross-flow = counter-flow... but that's anothe thing...) so I 'm wondering how others might have approached configuring sign material in a manner that the opposing air streams are in true counter flow configuration as opposed to 90* angle to each other... Descriptions would be nice, but I'm a visual person so a diagram or picture is worth a million words for me... Any help would be appreciated!

11-13-13, 12:45 PM	#425
geodans Lurking Renovator Join Date: Nov 2013 Location: washougal Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	yeah! I'll take em! I'm just about to head to Portland... how do we connect?

11-13-13, 02:16 PM	#427
geodans Lurking Renovator Join Date: Nov 2013 Location: washougal Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	It's not letting me... not enough posts... email me if u can...

11-13-13, 08:50 PM	#428
geodans Lurking Renovator Join Date: Nov 2013 Location: washougal Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	It was a pleasure meeting you today AC! Thanks again for the HX material! I'll keep the group posted on how it's put to use. We'll need to get together again soon and conspire to save some energy! (Let me know if you got my email)