Robert Ussher

speaker

856 appearances 4 recordings 1 series first heard Jan 2026 last heard 12 Aug

Robert Ussher’s voice in public audio — every appearance, attributed to the second.

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recordings per month · last 12 months

Recordings per month over the last 12 months — 4 in all, peaking in Aug 2026 with 1.

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Cooling Data Center Podcast · Demetrio Velasco, Liquidpulse: Two Megawatt Load Banks, Clean Fluids & Why You Can't Skip Integrated Testing · 12 Aug 2026 podcast

Uh, load banks off site in point six of an hour or whatever it is from the minute they blow the whistle and say ISG test done.

Well, it's a very big consideration for liquid load.

Uh liquid cooling um that's that's designed to be operated under load with very, very small maintenance intervals, not just for tier one uh data centers, but if nothing else, just to make sure that you get 365 days of operation between filters.

I mean, we look at the chemistry to try and get rid of things such as um

uh organic growth and build up and things like that.

But I mean, what can help you when things go wrong uh at a commissioning stage when somebody's introduced dirt or whatever right from the get-go, when you've planned your maintenance intervals around a virgin system that doesn't have anything in it, um uh day one, and all of a sudden you're you're you're after hooking up to a dirty pipe.

I mean, what what what can you do with that?

Your chemistry won't stand up.

Well, normally my kind of ideas on it were normally when we started off uh talking about some of these systems, the size and scale of these systems wasn't what it was.

We were looking at ten kilowatt racks, twelve kilowatt racks, that kind of idea.

And what we used to do was we used to be able to isolate nodes.

you know, at a local molder case circle breaker, we didn't have to go and switch off nodes back at the uh at the main distribution board for the for the medium voltage transformer, or we didn't have um things like uh uh like multi-energy plants with various different adding different levels of complexity to the supply.

So so what you're doing when you get to that particular ISG test is as we said

You're not only testing the cooling, you're testing the ability for the site to generate that power because nine times out of ten, they won't be able to hook up to the utility company for the full total of the power for the test.

You're also testing the resilience of the multitude of people, uh, the the multitude of people who are there to commission.

If there is an issue, when you start to do the test, you need to have it resolved as quickly as possible.

So you're actually testing the systems and

the professionality of the people who commission those systems.

granted in a way that people don't want to be tested, i.e.

under critical failures, but

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