Available to purchase at.The bio-revolution.

However, these have a lower priority to be situated adjacent to the equipment and can be located elsewhere on site..Emergence of Liquid Cooling.

Data centres can leverage liquid cooling strategies to optimise efficiency.One approach combines direct-to-chip liquid cooling for processors and GPUs with traditional air cooling for other components within the rack.Initially, both systems might be connected to the same chilled water infrastructure..

Single phase immersion cooling offers the ability for higher rack densities than direct-to-chip, however, the IT equipment must be immersion ready which is not standard off the shelf equipment and for some IT manufacturers, not yet available.For some passive immersion cooling products, it is estimated 3 – 5% of the heat escapes from the immersion cooling unit into the room, therefore, for high-capacity rooms some air cooling will still be required.. With the trend of CHIP manufacturers ever increasing their compute capacity, supply temperatures of the chilled water system may be required to remain low whilst increasing the cooling capacity (increasing ΔT of the chilled water).

This could see the emergence of two tiers of systems: high compute systems with high density at lower chilled water temperatures (at a higher ΔT) and lower compute systems (still high compared to today’s IT) with a lower density at higher chilled water temperatures enabling much more free cooling.. Alternatively, a liquid cooled rack with air heat rejection (on the back of the rack) can be installed to provide liquid cooling whilst maintaining the existing air-cooled system, but this is a less common approach.. Onward look to heat rejection.

In the realm of air-cooled data centres, the industry is increasingly gravitating toward to ASHRAE A1 allowable temperatures for data halls.Whether an (almost) all-renewables portfolio could provide the required clean energy, and whether it is realisable quickly enough remains a matter of debate.

But in a way that is not the point either; because if you aren’t 100% sure you can realise this renewables-only portfolio, then as time is so short, failing to look into energy portfolios that include nuclear would be both unwise and irresponsible.We won’t have time for a second chance at getting this right..

The Intergovernmental Panel on Climate Change (IPCC) states that a considerable proportion of our energy production should come from nuclear; and that the nuclear energy capability needs to be increased significantly (up to sixfold) if we are to curb global warming sufficiently to avoid the worst scenarios.. 7.Given the scale and urgency of the decarbonisation challenge, we need to look carefully at the evidence about the impact and likelihood of the undesirable elements of nuclear power, and the evidence around the effects of continuing to rely on fossil fuels (more specifically the future of coal).