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We've been asked for a few real pictures of our immersion cooling systems. While our rack mountable projects are still confidential and we can't publish any photos, have a look at the gallery in the Building Immersion-1 page. And while we do indeed use glass for small immersion cooling demo setups, rest assured that our finished immersion cooling tanks don't look anything like fish tanks (you don't want a couple of Kilowatts in a glass tank, trust me).

Here are two more pictures of some of the prototypes we've built last year. As you can see, immersion cooling can be very simple, especially considering that each of these tanks can hold what normally would go into a couple of noisy 19" server racks.

 

 

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My colleague Alex wrote about winter in Hong Kong in an earlier blog post - and it's already over again. Temperatures have been on the rise from mild winter temperatures of 18°C for more than a month already, but today it came in the radio that we're at 28° Celsius (82.4° Fahrenheit) and a whopping 95% relative humidity. This compared to the snow chaos in Europe with airports shutting down just a few days ago in the middle of March... Guess it's quite obvious why we moved to Hong Kong - I was at the beach yesterday, basking in the sun!

Maybe one should draft up a new PUE (Power Usage Efficiency) metric for data centers and supercomputers which is relative to the annual temperature and humidity average of the respective location - just like "relative humidity" in relation to temperature. It's no surprise that Hong Kong's average PUE is at 2.52 according to Digital Realty's 2012 survey on 101 major data centers in Hong Kong. I wonder what lower PUE than the current 1.02 Immersion-1 would achieve with such a new "relative PUE" metric...

 

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If you look around a typical Hong Kong office during the winter season you'll often find people in down-feather jackets sitting around old-style (and energy hungry) blow heaters and electrical oil radiators (2000W units are very popular in HK).

This winter however, our office was nice and cosy and T-shirts were the norm. With 70kW heat dissipated next door, and a few tanks strategically placed in the corner of the office, we've had free heating all winter long. It's a very energy efficient way to heat the room.

The dissipated heat from immersion cooling systems is very easy to capture. It is a no-brainer to connect to an existing central heating system or make it part of the design process for a new building design or renovation.

There are no hot water radiators in Hong Kong (and no central heating system as far as I am aware), but if we have the chance we'll definitely get some radiators for the upcoming cold seasons. We could probably heat the whole building with our tiny cluster!

As always, if you have a question on your mind, feel free to get in touch at This email address is being protected from spambots. You need JavaScript enabled to view it.

 

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 Our Address:
Global Trade Centre
Units 305-307, 3/F
15 Wing Kin Road 
Kwai Chung, N.T.
Hong Kong

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Phone +852 3145 0055
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Global Projects

Hong Kong is one of the fastest-paced cities in the world. It has remained the world's freest economy since 1995, with low tax, no import and export restrictions, free trade and travel. Being located in the financial powerhouse and tech hub of Asia, we are well equipped to work on global projects. No matter how big, or small.

Hot & Humid

Most would consider Hong Kong's cramped living conditions, sky high property prices, and hazy skies as very challenging. When it comes to data centers, hot and humid climates are one of the biggest problems too. Hong Kong's power hungry infrastructure is a major disaster for the people's wallet and the environment. On the bright side, it's habitats like this that push companies to go the extra mile and make a change.