Allied Control Logo

green-globeGreen Cooling

Data centers account for about 2% of the planet’s entire electricity consumption. This is only going to increase further with continuously growing demand for calculation-intensive cloud-computing services. Unfortunately, roughly 50% of that energy is wasted for cooling. It is this wasted energy, not used for anything productive, which results in a serious contribution to greenhouse gases like CO².

Captures Heat at the Source

Without wasting any energy, passive 2-phase immersion cooling is the most efficient and elegant way to capture heat right at the source. Electronic components are submerged into a bath of dielectric heat transfer liquids, such as 3M Novec Engineered Fluids, which are much better heat conductors than air or water. With their low boiling point (ie. 49°C vs. 100°C in water), they boil on the surface of the heat generating devices and rising vapor will passively transfer heat away.

It is this simplicity that eliminates conventional cooling hardware (thousands of fans and heatsinks, air conditioners, raised floors for air flow, etc) and results in better cooling with much less effort.

Zero Ozone Depletion Potential

Novec fluid does not deplete ozone (zero ozone depletion potential) and has a low global warming potential. It is low toxic and non-flammable. Because of its low global warming potential, Novec is used in fire extinguishing systems by companies such as IBM or the Hong Kong Stock Exchange. The use of Novec means a 99% reduction in greenhouse gases compared to Halon based systems.

Immersion cooling also benefits from 'free cooling' at ambient temperatures, even in hot and humid climates. Heat generated by an immersion cooled system can be easily recaptured and reused for heating.

Environmental Benefits of Immersion Cooling:

  • More efficient heat transfer process - often more than 90% electricity saved.
  • Higher density of electronics require significantly less space and facility electricity for lights, air condition, etc..
  • Dissipated heat can be used in facility to heat offices or warm water.
  • Works efficiently everywhere, even in hot and humid climates.
  • Non-toxic and non-flammable - also used in modern data centers as environmentally-friendly fire distinguishing agent.
  • Significant savings of Carbon Dioxide can be achieved with the drastic decrease of electricity usage for cooling.


Please contact our application engineers by email using This email address is being protected from spambots. You need JavaScript enabled to view it..

For a free immersion cooling project evaluation, feel free to use our immersion cooling evaluation form. You'll be surprised how beneficial immersion cooling can be, even on a smaller scale.



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

Contact Us:
Phone +852 3145 0055
Fax +852 3010 0802

Email Us
Language:Write to us in English,
German or Chinese.

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.