Chassis-level liquid cooling solutions for mass-scale IT deployment in Cloud / Hyperscale

Iceotope’s chassis-level immersion cooling solutions lower costs, improve efficiency, and increase density at scale.

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What is chassis-level immersion cooling?

Chassis-level immersion cooling offers a sealed chassis where all the server components are immersed in a small quantity of dielectric coolant which is precision delivered to hotspot heat sinks. The heat is captured using a gentle recirculating coolant flow inside the chassis and transferred to a building circuit via a plate heat exchanger where it is rejected to ambient using dry-coolers; or reused for heating.

Key benefits

There are many benefits of choosing chassis-level immersion cooling over traditional air cooling and alternative liquid cooling options. Here are just a few of them.

Smaller CapEx. Bigger savings.

Schneider Electric’s preliminary analysis of our chassis-level immersive cooling solution versus a traditional air-cooled solution – based on a 2MW data centre – shows very conservative CapEx savings of 14% and energy savings of at least 10%, which leads to a 20-year Total Cost of Ownership (TCO) savings of 11%.

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Hotter chips. Smarter cooling.

Our chassis-level immersion cooling technologies will comfortably deliver 40kW per rack and scale to over 100kW. Our technologies provide more predictable thermal control without the over provisioning and airflow management needed in air cooling. They can also improve chip and hard drive reliability by providing a lower stable operating temperature.

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More power. Less energy.

Operating a pPUE of 1.03, our chassis-level immersion cooling technologies not only comply with all existing regulations, they fall well below the lowest regulated pPUE of 1.3. Our cooling technologies remove the need for and the restrictions created by energy-intensive air cooling systems – including the server fans – allowing the 15-16% of site power normally stranded to be reclaimed, while using up to 5 times less energy.

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More processing. Less space.

By eliminating the need for hot and cold aisles, our chassis-level immersion cooling technologies reduce the overall data centre space for a given IT load. As demand increases for IT deployments in urban areas – and at the edge – our cooling technologies enable compute in places that has not been possible until now.

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Less water. Less waste.

Our chassis-level immersion cooling technologies can significantly reduce or eliminate water usage from the cooling system design. Because they use warm water (up to 45⁰C) in a closed secondary loop for heat rejection, simple dry coolers can be used in most climates to reject the heat.

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Zero fans. Zero noise.

By removing the need for complex air-cooling infrastructure, fans and moving parts, our cooling technologies operate in near silence.

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Fully sealed. Fully protected.

100% sealed and resilient, our chassis-level immersion cooling technologies isolate all IT from the environment, protecting it from airborne contaminants.

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Our IP. Your supply chain.

Our simple licensing model allows you to run your supply chain as is, allowing your consultancy, engineering, production, support and service providers remain unchanged.

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How it works

 

Using our patented chassis-level immersion cooling technologies, we immerse all the components in a dielectric coolant and seal them in a standard form factor chassis. A small quantity of dielectric coolant (around 2kg per kW) is precision delivered to our patented heat sinks and then overflows into the chassis to capture the heat from every component.

Immersed micro pumps create a gentle recirculating coolant flow inside the chassis enabling the heat to be transferred to a building circuit via a plate heat exchanger. Building coolant enters the heat exchanger at up to 45oC and exits at up to 50oC. With these high operating temperatures facilities have the opportunity to remove chillers as heat can be rejected to ambient using dry-coolers; or captured and reused for heating. Using dry-coolers means that our technologies consume no water.

Power in, signal out are passed through L2A (liquid-to-air) connectors which allows adaption from traditional air-cooled technology to a chassis-level immersion cooled server design. 

Technology highlights

Integrated rack with liquid-cooled chassis for compute-intensive applications at the Edge

Iceotope's integrated rack with liquid-cooled chassis reduces risk, saves energy, and simplifies maintenance at the Edge.

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Hybrid chassis-level liquid cooling for compute-intensive AI and HPC applications

Iceotope's hybrid chassis-level liquid cooling solution maximises performance, improves efficiency, and sustains high heat recovery in AI and HPC.

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Integrated rack with liquid-cooled chassis for variable scale deployments in Colocation

Iceotope's integrated rack with liquid-cooled chassis enables Colocation operators to capitalise on the looming Hyperscale opportunity by accommodating variable scale requirements.

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Chassis-level immersion cooling for Exascale

As the lead partner responsible for developing a total liquid cooling solution for the European Union's ExaScale Supercomputer, Iceotope's chassis-level liquid cooling technologies have successfully cooled 3.2kW per 1u scaling to over 100kW per rack.

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Industry leading partners

Delivering the future in cooling technologies. Today.

Our chassis-level liquid cooling technologies have been tried, tested and adopted by some of the biggest hyperscalers in the industry – not to mention, one of the largest OEMs in the world. Our business model is simple. We listen, we innovate, we develop and we integrate into existing supply chains. Partnerships with industry giants like Schneider Electric and Avnet make all of this possible. So whatever cooling challenges you are facing, we will help you manage them effectively.

Frequently asked questions

Our studies have shown the CAPEX to be parity or cost down to air cooled and other liquid cooled solutions in the industry. When considering OPEX, white paper analysis shows the cost to be equivalent to air cooled solutions at a typical rack power of 10kW, while offering a savings at power levels greater than 10kW.

We are fluid agnostic and can use several different fluid types. That said, we do require use of engineered dielectric fluids that have good performance characteristics which meet the basic materials compatibility requirements of our solution.

No, not usually. Most components can be serviced just like a normal air-cooled server without drain, as our solution is partial immersion, and allows for touch point access without putting your hands in the fluid bath. We do recommend you drain the fluid for CPU replacement however, to prevent fluid contamination from the grease thermal interface.

The volume of coolant in the chassis is dependent on the IT configuration of the device. The Iceotope system uses as little fluid as possible by carefully distributing within the chassis, proportionate to the cooling duty of individual components.

No, we do not need to use phase change. Our dielectric fluid does not boil, as its boiling point is above the temperatures generated by the electronics.

No, Iceotope's chassis-level technologies are completely fanless.

Temp of secondary circuit into the heat exchanger = up to 45oC (conforms to ASHRAE W4)

Dielectric fluid = up to 70oC

Max operating temp of the processors = typically up to 85oC (dependent on processor and vendor guidelines)

We read IPMI data from the motherboard and from temperature sensors on the heat exchanger.

Yes, the power supply is liquid-cooled within the chassis.

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If you have a cooling challenge that you would like us to solve or if you would like to find out more about our chassis-level liquid cooling technologies...

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