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https://www.gov.uk/government/publications/social-value-act-information-and-resources/social-value-act-information-and-resources.

It is, however, possible to achieve through an integrated design approach and.Data centres developments have baseline costs like utilities, land, civils and structure...

So the more data centre capacity you can fit onto your site, the more IT yield per square metre you will get, and the lower your cost per kW will be.. As data centre designers, we must aim to maximise the site yield.Here’s how we can do this:.It is not uncommon for permitted development on data centre sites to be limited to around 20 metres .

A typical hyperscale data centre design, with the racks, then space for cabling and power, then a ceiling void and structure, will have a storey-to-storey height of often of seven or eight metres, and sometimes more.In other words, you can have two floors for data halls in a 20 metre planning envelope.. A fundamental reassessment of the integration of cooling systems and structure, and optimised M&E services zones through close coupling of electrical and mechanical systems will yield geometric reductions that can reduce floor to floor height.

Constructing less costs less, but this approach has the potential to yield much more.

For example, a reduction in floor to floor height to 6.5m would enable a three-storey data centre on that same site – an instant gain of 50% in site yield and significant reduction in cost per kW.. A similar approach to close integration of design and the arrangement of primary plant and ancillary systems will optimise the data centre facility plan footprint.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.

However, there is little indication of a shift toward A2 or higher temperature ranges.Heat rejection systems, including mechanical cooling, have started to reach a plateau, with manufacturers making incremental enhancements to accommodate higher chilled water temperatures within the ASHRAE A1 range..