Collection

Recently added

Technical references added to the library in the last 90 days.

Sources
1044
Downloadable PDFs
270
Years
1984–2027

All sources

505–528 / 1044

Research paperPDF

Applied Sciences (MDPI AG) 2024

Numerical Evaluation of Hot Air Recirculation in Server Rack

Make hot-aisle back pressure (hot-aisle pressure above cold aisle) a design input in contained aisles; server inlet temperature rises once back pressure reaches the fans' free-delivery point.

  • A three-grid GCI study (1.22 to 1.99 million cells) selected a 1,799,871-cell trimmed hexahedral mesh with seven prism layers, near-wall y+ of about 5.
Research paperPDF

Buildings (MDPI AG) 2023

Numerical Investigation of Thermal Performance with Adaptive Terminal Devices for Cold Aisle Containment in Data Centers

For hot-spot removal, before choosing lower supply temperature or higher airflow outright, compare the COP drop (3.2 to 2.6) and the energy difference (20.1% and 4.2%) with a rack-specific air distribution option.

  • A grid study at 260,000 to 1,340,000 cells showed results stabilising at about 560,000 cells.
Research paperPDF

Challenges (MDPI AG) 2015

On Global Electricity Usage of Communication Technology: Trends to 2030

In data-centre electricity-demand projections use traffic-based extrapolation (traffic × annually improving energy intensity) as an upper-bound reference; the worst case is very high and the method was later criticised for overestimating demand.

  • In the worst-case scenario communication technology could use as much as 51% of global electricity in 2030 and contribute up to 23% of global GHG emissions.
Research paperPDF

Energy Strategy Reviews (Elsevier BV) 2024

On the means, costs, and system-level impacts of 24/7 carbon-free energy procurement

In a data-centre renewable procurement strategy, weigh that annual volumetric matching does not deliver hourly clean supply (54% to 83%) and that 85-95% hourly CFE targets cut emissions more at a relatively small premium.

  • Adding long-duration storage (salt-cavern hydrogen, 2.5 EUR/kWh) cuts the 100% CFE premium to 42% above annual matching; also adding clean firm generation cuts it to 15%.
Technical guidePDF

Open Compute Project Foundation 2022

Open Rack V3 BBU Shelf Specification, Rev 1.1

Model ORV3 in-rack BBU as an alternative to a central UPS and check that generator start and transfer time fit inside the roughly 4-minute window at rated load per shelf.

  • Each BBU shelf holds one PMI module and six 3 kW BBU modules in 5+1 redundancy.
Technical guidePDF

Open Compute Project Foundation 2026

Open Rack V3 High Power (60A) AC WHIP Power Cable Design Specification, Revision 1.1.0 (11 November 2026)

Add a high-power ORV3 feed type (60 A 480 V / 63 A 400 V IEC 60309) to the busway/receptacle catalogue and size each whip at 48 A continuous in North America for power-shelf capacity checks.

  • Assembly must be UL Listed per UL 817 and CE certified; parts to UL 62/UL 758; connectors tested to IEC/EN 61984 and IEC 60512.
Technical guidePDF

Open Compute Project Foundation 2026

Open Rack Wide (ORW) Base Specification, Revision V1.0.1 (effective May 5, 2026)

Add an ORW rack family whose footprint, height and payload come from the chosen design specification rather than fixed defaults, prompt users for those values, and warn that floor-loading and aisle-pitch checks depend on them.

  • The frame accepts air-cooled or liquid-cooled 48 V busbars; busbar mounting interfaces are identical to ORV3 HPR.

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