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Search took 0.00 seconds. Search: Posts Made By: a64pilot
Forum: Plumbing Systems and Fixtures 07-02-2019, 07:46
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

I believe Solar powered refrigeration on sailboats is a title that leads to a little misunderstanding.
Yes there are modules that are made that will operate in very variable voltages, I believe...
Forum: Plumbing Systems and Fixtures 06-02-2019, 06:02
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

You have an unusual holding plate it seems, this is their usual plates.
https://www.cruiserowaterandpower.com/Holding_Plates.html
It’s interesting that is shows a dual plate configuration as well....
Forum: Plumbing Systems and Fixtures 05-02-2019, 06:06
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

I guess I’m playing both sides of the fence, cause I don’t see what is exotic about a tank full of largely water. All a cold plate system is, is a thin plate evaporator placed into a water tank....
Forum: Plumbing Systems and Fixtures 05-02-2019, 05:38
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

I had one of those smart controllers, it worked off of voltage that you could adjust voltage points.
In order to prevent voltage sag from messing with it, it only looked at voltage at turn on, if it...
Forum: Plumbing Systems and Fixtures 05-02-2019, 05:25
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

117 times a Day is sort of way out there, the AEO module for instance wouldn’t allow that. If your cycling anything close to that then your temp set points are set way too close and or you have...
Forum: Plumbing Systems and Fixtures 04-02-2019, 05:09
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

That is likely the missing piece then, the “flywheel effect” if you don’t mind me misusing a term, smoothing out the spikes if you will.
However wouldn’t a freezer or fridge full of food to some...
Forum: Plumbing Systems and Fixtures 03-02-2019, 14:13
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

Pete, I hope you don’t mind me jumping in.

But I would hope the test was run with everything already at a stasis point, meaning already cooled down and stable. Otherwise there would be so many...
Forum: Plumbing Systems and Fixtures 03-02-2019, 14:08
Replies: 146
Views: 19,537
Posted By a64pilot
Re: Another look at Solar Powered refrigeration on sailboats

I think your right as long as, and this I believe is key that the thin plate evaporator was sized so that it didn’t have to run at a colder temp than the cold plate does.
If it has less surface...
Forum: Plumbing Systems and Fixtures 02-02-2019, 10:25
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

I don’t really know, and it’s my opinion that duty cycle isn’t as relevant with an AEO module, reason is the AEO will control the compressors speed to reach the desired cycle time and therefore its...
Forum: Plumbing Systems and Fixtures 01-02-2019, 17:43
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

The best way to reduce power consumption is through insulation.

I however went a different route, rather than chasing increased efficiency, because I believe it’s very quickly diminishing returns...
Forum: Plumbing Systems and Fixtures 31-01-2019, 13:07
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

Well, I hope mine lives a long life.
I have always been astonished at how long sealed compressors last.

Our last house fridge was still going strong at 20 yrs. I only replaced it because the door...
Forum: Plumbing Systems and Fixtures 31-01-2019, 09:42
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

It should be noted that at least my system had the resistor value (1700) to cause the compressor to run at its highest speed whenever it was on.
If I understand the thermal expansion valve would...
Forum: Plumbing Systems and Fixtures 30-01-2019, 04:03
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

Yes.
Then again if slowing it down optimizes cycle on / off times, then you get a doubling of efficiency increase.
I think the new AEO module is really something, I’m impressed with it.
Forum: Plumbing Systems and Fixtures 29-01-2019, 14:23
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

Just going off memory, plain ole water as energy storage is tough to beat, but I may be thinking heat required to change to steam.
But you through in the 25 degree difference in temp so I truly...
Forum: Plumbing Systems and Fixtures 28-01-2019, 17:40
Replies: 146
Views: 19,537
Posted By a64pilot
Re: Another look at Solar Powered refrigeration on sailboats

I know of only one Eutectic system that actually allows the fluid to phase change, thereby actually using the fluids huge heat holding capacity.

In truth I’m at a little bit of a loss trying to...
Forum: Plumbing Systems and Fixtures 20-01-2019, 07:29
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

I want to try to make something clear.
By stating that I can skew a test in the direction I want it to go, that was not meant by any means to mean Pete, it was an observation that a truly non...
Forum: Plumbing Systems and Fixtures 20-01-2019, 06:10
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

The only real advantage I see in a cold plate is in its ability to store or hold over, and the best way I see it implement that would be different temp set points based on voltage, when you have...
Forum: Plumbing Systems and Fixtures 20-01-2019, 05:07
Replies: 146
Views: 19,537
Posted By a64pilot
Re: Another look at Solar Powered refrigeration on sailboats

I believe also that John, (Cold Eh) has also published some testing that showed a very efficient installation, with an evaporator. He did that I assume with excellent insulation, and a well matched...
Forum: Plumbing Systems and Fixtures 20-01-2019, 04:12
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

Pete was very honest in using his own systems for both tests, however Pete did admit that his evaporator was undersized which meant that due to its small surface area that it had to be run much...
Forum: Plumbing Systems and Fixtures 20-01-2019, 04:00
Replies: 146
Views: 19,537
Posted By a64pilot
Another look at Solar Powered refrigeration on sailboats

Maybe, I say maybe cause think of how much space cold plates occupy.
I think just as an example that between my two cold plates, they contain about 4 gl ea. As a guess of antifreeze/water mix, that...
Forum: Plumbing Systems and Fixtures 20-01-2019, 03:45
Replies: 146
Views: 19,537
Posted By a64pilot
Re: Another look at Solar Powered refrigeration on sailboats

Never seen a pure Solar fridge on a boat, don’t see any reason to do so.
I’m aware that there are controllers made to run from panels direct, but don’t understand the use case.

I think we have...
Showing results 1 to 21 of 21

 
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