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06-06-2017, 09:11 AM
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Join Date: Nov 2010
Location: Houston, Texas
Posts: 212
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Quote:
Originally Posted by ccrawford
Your first picture shows up, but the rest are broke. Would love to see them!
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I attempted to fix them. Do they show up now?
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Shannon
RV-10
Flying September 2015
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06-06-2017, 10:04 AM
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Join Date: Oct 2012
Location: Corona , Ca
Posts: 139
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How about placing another radiator below ice that is hooked into pump and then push water up to top radiator then water just drains down into chest. (Not closed loop). Of course you will need to protect lower radiator from damage.
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RVTOY
RV7A flying
Kitfox 7 completed 2009. Lost in 2010 KJOA Flood. New Airworthiness cert. 6/8/2018
Always an upgrade in progress.
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06-06-2017, 10:12 AM
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Join Date: May 2005
Location: Tuttle, Oklahoma
Posts: 2,563
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Shannon, can you describe what you did to seal and secure the fans, etc. Is that RTV silicone I am seeing in the pics?
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06-06-2017, 12:00 PM
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Join Date: Nov 2010
Location: Houston, Texas
Posts: 212
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Quote:
Originally Posted by RVTOY
How about placing another radiator below ice that is hooked into pump and then push water up to top radiator then water just drains down into chest. (Not closed loop). Of course you will need to protect lower radiator from damage.
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I'm not sure how much efficiency this would impart. The air coming out of the one radiator is already near freezing.
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Shannon
RV-10
Flying September 2015
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06-06-2017, 12:05 PM
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Join Date: Nov 2010
Location: Houston, Texas
Posts: 212
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Quote:
Originally Posted by RVbySDI
Shannon, can you describe what you did to seal and secure the fans, etc. Is that RTV silicone I am seeing in the pics?
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Sure thing! I really tried to keep the KISS principle alive here.
For the radiator, I drilled out the existing cup holder from the bottom using a 3" hole saw. I then placed a drop of gorilla glue on each corner of the radiator and placed it in position. I then laid a brick on top to keep it clamped. After that was cured, I applied a bead of bathroom, clear silicone around the perimeter to form a seal.
For the fans, I cut a rectangular hole in just the bottom skin of the top using a small cutoff wheel attached to my dremel, just larger than the fans themselves. I then match drilled them to the top utilizing the existing mounting holes in the fan. From here, I cut the top, just inside of the match drilled holes. I then used the mounting screws that came with the fans to secure them to the underside of the lid.
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Shannon
RV-10
Flying September 2015
Last edited by civengpe : 06-06-2017 at 12:55 PM.
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06-06-2017, 12:12 PM
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Join Date: Nov 2010
Location: Houston, Texas
Posts: 212
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I have run into an issue that I did not see during the proof of concept phase. The radiator is removing so much moisture it is clogging up with water.
I originally chose the geometry of the fans pushing air though the cooler then the radiator as I thought, the time in the cooler would pre chill the air prior to the radiator and result in a better final result. The real result has been the loss of airflow through the radiator due to water build up. The spacing between the fins, coupled with the positive air pressure from the fans is casing all of the condensate to not drain back into the cooler.
It's hard to capture in a photo, but you can see the bottom half of the radiator is clogged with water. this what the entire radiator looks like when I first open the lid.
I think the fix will be easy enough though. I am going to relocate the radiator to be on the inlet side instead of the exhaust. That way the fans should keep it clear of moisture accumulation.
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Shannon
RV-10
Flying September 2015
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06-06-2017, 01:04 PM
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Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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Ok, what if you take a kids inflatable pool, set in the tent, fill half way with water and jump in and go to sleep......wakeup and take a bath! 
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7A Slider, EFII Angle 360, CS, SJ.
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06-06-2017, 01:05 PM
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Join Date: Sep 2011
Location: Edgewater, FL. KSFB
Posts: 1,118
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You are getting such good heat exchange with that evaporator, air velocity and water temp that it does not need such closely spaced fins. If needed you could modify the fin spacing. i.e. use a punch to spread the fins. That would help. Your idea of pulling water down rather than up may do the trick though.
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06-08-2017, 09:19 AM
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Join Date: Nov 2010
Location: Houston, Texas
Posts: 212
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I've worked through all of the major issues and have it done. Here is a link to a video overview of it.
https://youtu.be/7L-C1aLZReQ
Cheers!
__________________
Shannon
RV-10
Flying September 2015
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06-08-2017, 03:34 PM
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Join Date: Dec 2007
Location: RV-10 based at 9SC - Whiteplains Airpark
Posts: 406
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Salt Water and or Cooler Shock
A couple of options for your water. Mix 1 cup of salt in a gallon milk jug full of water and freeze. Gives you a freezing point lower than 32 degrees.
If you want to get really creative, I just purchased 6 large 10 x 14 bags of Cooler Shock (google it) to use in my Icy Breeze cooler I got a Sun N Fun.
Still in the testing mode but this is interesting stuff. Will advise on my results
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Steve Crimm
Gilbert, SC
Based - SC99
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