<div dir="ltr"><div dir="ltr"><div class="gmail_default"><font face="verdana, sans-serif"><a href="https://en.wikipedia.org/wiki/McLaren_Technology_Centre">https://en.wikipedia.org/wiki/McLaren_Technology_Centre</a></font><br></div><div class="gmail_default"><font face="verdana, sans-serif"><br></font></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Nov 6, 2018 at 4:50 AM C Bergström <<a href="mailto:cbergstrom@pathscale.com">cbergstrom@pathscale.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Building cooling maybe.. Then again in the UK I doubt the need would be so strong. The building from aerial view is ying/yang so it's probably just design</div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Nov 6, 2018 at 4:46 AM Prentice Bisbal via Beowulf <<a href="mailto:beowulf@beowulf.org" target="_blank">beowulf@beowulf.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>Yes. Something exactly like that! Is that what that pond is used
for? I would expect that is much larger than what is needed for a
typical data center. <br>
</p>
<pre class="m_1048265873622229876m_5514018537456109023moz-signature" cols="72">Prentice </pre>
<div class="m_1048265873622229876m_5514018537456109023moz-cite-prefix">On 11/05/2018 01:35 PM, John Hearns via
Beowulf wrote:<br>
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Honestly, though, I think most of this is moot. With
direct-contact liquid cooling and warm-water cooling, I
think for most data centers, cooling to ambient air should
be adequate. For >places where that isn't enough, I
would think a shallow, man-made cooling pond on premises
would be an adequate heat sink, without having to go all
the way to the ocean. By keeping >it shallow, at night
when it cools off, the pond could dump a lot of its heat
to the atmosphere. </span></div>
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<div>Something like this perhaps?<br>
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<div dir="ltr"><a href="https://youtu.be/0gCXfWCLZAA" target="_blank">https://youtu.be/0gCXfWCLZAA</a><br>
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<div dir="ltr">On Mon, 5 Nov 2018 at 16:01, Prentice Bisbal via
Beowulf <<a href="mailto:beowulf@beowulf.org" target="_blank">beowulf@beowulf.org</a>> wrote:<br>
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<pre class="m_1048265873622229876m_5514018537456109023m_-239222114683837985moz-signature" cols="72">Prentice </pre>
<div class="m_1048265873622229876m_5514018537456109023m_-239222114683837985moz-cite-prefix">On
11/05/2018 06:02 AM, Stu Midgley wrote:<br>
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<blockquote type="cite">
<div dir="ltr">As far as I can tell, they are just using
the salt water to reject the heat to. How they get the
heat from the cpu/hot bits to the water is not clearly
stated...
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</div>
<div>A passive heat exchanger would make energy sense...
but would cost a bomb in engineering... maybe direct
fluid cooling (asetek) with a heat-exchanger to the
salt water?</div>
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</div>
<div>Either way, its stupid. They could just easily
pump the cool salt water from the ocean into a DC,
reject heat to it using the same methods... and pump
it back to the ocean. Since no real delta in height,
it would be efficient in energy.</div>
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</blockquote>
The issue with this would be the increased maintenance cost
of the equipment pumping the salt water to the the DC, do to
the corrosion from the salt water, and overall 'dirtiness'
of the saltwater. A better approach would be to have a
closed loop of treated freshwater going from the data center
to the a heat exchanger submerged in the sea. This should
reduce maintenance costs for the system.<br>
<br>
Honestly, though, I think most of this is moot. With
direct-contact liquid cooling and warm-water cooling, I
think for most data centers, cooling to ambient air should
be adequate. For places where that isn't enough, I would
think a shallow, man-made cooling pond on premises would be
an adequate heat sink, without having to go all the way to
the ocean. By keeping it shallow, at night when it cools
off, the pond could dump a lot of its heat to the
atmosphere. <br>
<blockquote type="cite">
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<div>OR... just use a boat...</div>
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<div dir="ltr">On Mon, Nov 5, 2018 at 2:27 PM <<a href="mailto:jaquilina@eagleeyet.net" target="_blank">jaquilina@eagleeyet.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Probably
a stupid question here,<br>
<br>
What is the advantage of using salty sea water lets
say over for example <br>
mineral oil? I have seen on you tube these guys
showing that a pc will <br>
still run in a fish tank and all components submerged
in mineral oil? <br>
Yes it will be messier to change components but would
the use of mineral <br>
oil be more efficient?<br>
<br>
<br>
On 2018-11-04 14:10, Gerald Henriksen wrote:<br>
> On Sat, 3 Nov 2018 18:27:05 +0000, you wrote:<br>
> <br>
>> I’m not sure there’s a huge population of
Xcloud-Xbox gamers in <br>
>> Orkney. There's not much daylight this time
of year, of course, so <br>
>> maybe that's what those Orcadians are up to.<br>
> <br>
> Likely just a convenient place for a second test
unit.<br>
> <br>
> In a way this is just an extension of the
idea/product Sun came up wth<br>
> where they put a datacentre in a shipping
container with the idea that<br>
> you could quickly get the datacentre where it was
needed.<br>
> <br>
> While I wouldn't say this won't fail, I think
there is a lot of<br>
> attraction to the concept given not just the time
lag do build a<br>
> traditional data centre (mentioned in the
article), but even the cost<br>
> of real estate in many/most places people live
these days. Do you,<br>
> for one example, want to pay NYC rents or just
throw a bunch of pods<br>
> in the Hudson?<br>
> <br>
> I guess once you accept the idea that we no
longer maintain these<br>
> datacentres in the traditional way - we now just
let hardware fail in<br>
> place and ignore it until it's time to replace
all the hardware -<br>
> moving to smaller sealed units doesn't seem to
strange.<br>
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-- <br>
<div dir="ltr" class="m_1048265873622229876m_5514018537456109023m_-239222114683837985gmail_signature" data-smartmail="gmail_signature">
<div dir="ltr">Dr Stuart Midgley<br>
<a href="mailto:sdm900@gmail.com" target="_blank">sdm900@gmail.com</a></div>
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