The engineer’s reference desk
121–144 / 1,044 sources
T.C. Çevre, Şehircilik ve İklim Değişikliği Bakanlığı 2008
In the building/sustainability module (TR profile), add an NSEB check for buildings of 2,000 m2 and above: target class B and at least 10 percent of primary energy from on-site renewables.
T.C. Cumhurbaşkanlığı / Bakanlar Kurulu 2007
In the TR profile, default IT-room suppression to a TS ISO 14520 clean-agent design with damper-close interlocks.
Schneider Electric 2026
For multi-site designs add a monitoring-coverage check: every UPS, cooling unit, rack PDU and environmental sensor needs a network management interface, otherwise warn unmonitored device.
European Commission, DG ENER 2026
Track this initiative as an upcoming rule pack; leave design headroom against likely MPS indicators (PUE, WUE, waste-heat reuse readiness, grid flexibility).
arXiv preprint (cs.SE), Google 2024
In allocating carbon to data-centre users, give idle power to whoever holds the resource allocation and share dynamic power by actual usage; because an idle server draws about 45% of peak power, the idle share is large.
Proceedings of the 28th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, Volume 2 (ACM) 2023
Add an hourly 24/7 CFE coverage calculator to site and energy design that sizes wind, solar, BESS (in hours of IT load) and server headroom together; use hourly or sub-hourly supply profiles, never daily averages.
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Once a month: new library sources, changes to Turkish regulations and upcoming data centre events.
IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers (IEEE)) 2021
Consider shifting temporally flexible workloads (completable within 24 hours) to hours of lower carbon intensity and lower power peak as an option in data-centre grid-connection negotiation and power capacity planning.
Journal of Engineering Research and Sciences (Journal of Engineering Research and Sciences) 2026
Do thermal verification of failure mode (two ACUs offline) with realistic air leakage (cabinet gaps, HAC panel joints); a leak-free model can comply while the leaky model exceeds 32 °C.
Energies (MDPI AG) 2022
When modelling a server as a porous block in room-scale CFD, use Darcy-Forchheimer coefficients fitted to a resolved pressure-drop curve rather than generic assumptions such as porosity 0.5.
ASHRAE 2022
In site comparison, compute both site WUE and source (grid) water using a regional EWIF, and optionally a scarcity-weighted index.
Vertiv 2025
Add a BESS block to the site model with power (MW), duration (h), reserved-backup fraction and grid/island capability.
Schneider Electric 2014
Capture peak kW/rack and the peak-to-average ratio as well as the average, and express density in W/rack instead of W/m2.
Open Compute Project Foundation 2026
Extend the generator catalogue with technology type (diesel, HVO, gas, H2 ICE, PEM fuel cell), emissions factor relative to the 1742 lb/MWh baseline, start time, block-load capability and NFPA 110 level.
iMasons Climate Accord (Infrastructure Masons) 2025
Add embodied-carbon fields (kgCO2e; data source: EPD / TM65 / spend-based) to catalogue items and roll them up per design, reporting the share from supplier-specific EPDs.
Resources, Conservation and Recycling (Elsevier BV) 2022
In early data-centre design, set PUE and WUE targets by size class, cooling system and climate zone using this study's ranges (for example 1.71-2.22 for small rooms, 1.12-1.25 for large scale).
Uptime Institute Journal 2014
For in-row and RDHx designs, evaluate cooling redundancy per aisle or row, not per room, and check unit throw distance to the farthest rack under N-1.
European Commission 2021
Add an "EU Taxonomy 8.1" compliance profile: a Code of Conduct expected-practice checklist with justification fields for non-applicable items, and a refrigerant GWP <= 675 check in the cooling catalogue.
European Commission / Official Journal of the European Union 2024
In preliminary sustainability calculations, compute PUE, WUE, ERF and REF using the Annex III definitions.
European Commission 2026
As labels will be issued every year from 15 August 2027, set PUE and WUE class targets (Annex I) at design stage for new and existing sites and build the metering infrastructure to the reporting requirements.
European Commission 2022
When validating server PSU data against the 2023 tier, apply an informational exception, not a hard error, for units placed on the market during 2023 (legacy stock).
European Commission 2024
Show in the operations module whether site annual energy crosses 10 TJ (audit) or 85 TJ (certified ISO 50001 energy management system); in unit terms 10 TJ is about 2.78 GWh and 85 TJ about 23.6 GWh.
European Commission 2024
When testing the 1 MW waste heat threshold, compute "total rated energy input" from rated capacity (for example utility connection or rated IT plus infrastructure), not modelled annual energy, and take the measurement point at the handover of electricity supply.
European Commission 2019
In the IT equipment catalogue store PSU efficiency at 10/20/50/100% load, power factor, active state efficiency (SERT/EN 303470) and declared operating class A1-A4, and validate new models against the 2023 tier.
European Commission 2021
In equipment catalogue validation cite EN 303470 (SERT) as the test basis for server efficiency fields and record the declared operating class as tested.
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