[PSUBS-MAILIST] K350 motors and housings - available

[Douglas Suhr via Personal_Submersibles]

Hahaha, I guess that's right… I just remember that it was too hot OUTSIDE
the sub that day, so I can only imagine how miserable it must've been
INSIDE the hull. I do recall after they disembarked Snoopy and hopped into
the boat, Alec told us that at one point they were feeling light-headed so
he bumped up the oxygen flow rate just a little bit and that helped. Like
River points out, keeping the dome covered up from the sun is probably the
best means of keeping the pilot(s) cool. ~ Doug

On Tue, Apr 2, 2019 at 9:23 PM Alan via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Doug,
> a bag of ice??? It was 9 & they had all melted by the time they got
> to the dive spot. An epic sacrifice by Alec & Steve to dive that reef!
> Alan
>
> On 3/04/2019, at 1:14 AM, Douglas Suhr via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> I'd heard of / seen the 'redneck' cooler A/C units, but I guess I failed
> to realize how far along you guys are in exploring various cooling
> possibilities (I don't always keep up with the list as I should). I get
> warm enough in Snoopy that it's definitely worth the investment to stay
> comfortable. I remember when Alec and Steve were diving down in FL, a big
> bag of ice helped to do the trick, but was a little 'drippy' just the same.
> Hey, for $2 I think that's a great way to stay cool!
>
> When you guys figure out what works best, I'm investing! ~ Doug
>
> On Tue, Apr 2, 2019 at 2:23 AM Alan via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Brian H.,
>> my idea is to paste the peltiers direct to the hull wall below the water
>> line,
>> as the heat differential you can get between the 2 sides of the peltier
>> Improves efficiency. I intend to put a skin of fibreglass over them maybe
>> raised 1/2" above the peltiers & blow air through. The peltiers are only
>> 1/4 as efficient as a conventional air conditioner but take up a lot less
>> space
>> & only have the fan noise.
>> The great thing about peltiers is you just reverse current & have a heater
>> Just as efficient as a bar heater.
>> Alan
>>
>>
>>
>>
>> On 2/04/2019, at 2:58 PM, Brian Hughes via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>
>> As per AC, I also have a pile of them and been playing. The latest was an
>> attempt to vacuum mold a Kydex cover for an experiment. No joy. I couldn't
>> get the Kydex to vacuum around my mold before it cooled to much to still be
>> flexible. I tried hitting it with a heat gun while it was under vacuum, but
>> that just melted it.  Not yet discouraged!
>>
>> OTOH, I picked up a Yong Heng compressor for filling tanks whilst on the
>> road. Haven't tried it yet, just got my activated charcoal and micro sieve
>> material for the filter, but I want to use a peltier water cooling module
>> to chill the water going into the compressor's cooling jacket. The 6 chip
>> one, with the water heat exchangers on the sides and cooling fins in the
>> middle, has a design problem. The supplied fan can't pull enough air to
>> really pull off the heat. Ordered a few sizes of radial fans to see if they
>> work better.
>>
>> Back to Harold, for now sticking with a small insulated ice chest with a
>> fan drawing air across frozen water bottles for my AC. Also dehumidifies.
>>
>> Brian
>>
>>
>>
>> Get Outlook for Android <https://aka.ms/ghei36>
>>
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