The engineer’s reference desk
697–720 / 1,044 sources
Siemens 2017
Store Ur, Up, Ir, Ik/tk, Ip, LSC category, IAC rating and accessibility, insulation medium and busbar scheme in the MV switchgear catalogue.
Siemens 2018
Offer W/m2 defaults by building type (data centre vs IT room) and redundancy-dependent simultaneity factors in early sizing.
Siemens 2012
Add "isolated-parallel rotary UPS" (N UPS + IP bus + chokes) as a UPS topology template.
Scientific Reports (Springer Science and Business Media LLC) 2017
Add HF toxicity to risk assessments for enclosed battery rooms and BESS: take 20-200 mg/Wh of stored energy and compare the resulting room concentration with the IDLH (0.025 g/m³) and 10-minute AEGL-3 values.
Frontiers in Toxicology (Frontiers Media SA) 2026
When selecting a two-phase immersion fluid, add toxicology and occupational exposure limit (here WEEL 200 ppm) to the specification alongside boiling point (40-60 °C), dielectric strength, non-flammability and material compatibility.
Trane Technologies / UL Environment 2023
In preliminary embodied-carbon calculations, use 129 kg CO2e per refrigeration ton as a proxy factor for water-cooled centrifugal chillers and label it as a proxy.
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Vertiv 2026
Give the rack/pod model a liquid fraction (default about 70% for direct-to-chip) so residual air load is computed automatically.
arXiv preprint (Nanyang Technological University / NVIDIA AI Technology Center) 2025
For fast what-if analysis consider a CFD-trained surrogate (inference about 0.01 s), but state that the surrogate is only as accurate as the CFD it was trained on and is not validated against measurements.
Cummins 2025
Store per generator the ISO 8528-5 class achieved, BMEP at rated load and the maximum single load step (%) that meets the stated dip limits.
European Commission JRC 2017
Use the CoC PUE distribution (mean 1.80, falling to 1.64) as benchmark bands in the PUE calculator, showing where a design sits against CoC participants.
Türk Tesisat Mühendisleri Derneği (TTMD) - TTMD Dergisi 2026
Offer sparse-sensor temperature-field reconstruction in monitoring and digital-twin features as a fast alternative to CFD, flagged as model-based.
Afet ve Acil Durum Yönetimi Başkanlığı (AFAD) 2018
In the site/structure module (TR profile), pull DD-2 spectral values from the AFAD map by coordinates.
Çakmak Avukatlık Bürosu 2026
Add a 'Türkiye incentive compliance' check: TS EN 50600 AC≥3, PC≥4, GL≥3.
Çakmak Avukatlık Bürosu 2026
In the site and energy module for Turkish projects, let users model PPA versus unlicensed self-generation (5(1)[h], with the 5 MW cap for 5(1)[c]) and storage.
arXiv preprint (Emerald AI / NVIDIA / Salt River Project / EPRI) 2025
Provide a demand-response calculator that maps a workload mix and flexibility tiers (allowed throughput loss) to achievable curtailment depth and duration, with ramp-time settings to avoid rebound.
IEEE 2025
Record the refrigerant (with pressure class and GWP) on two-phase CDU objects.
Electronics (MDPI AG) 2025
In rack power-chain efficiency calculations, treat the number of stages and each stage's efficiency as separate inputs, and show the benefit of fewer stages at load points (low and high current).
Schneider Electric 2017
Give the module catalog functional block, form factor, indoor/outdoor rating, walk-in flag, shipping sections, footprint and height.
Data Center Frontier 2022
Implement the CFM = kW x 3412 / (1.08 x delta-T) check per rack and per tile.
IEC 2022
In the UPS catalogue, record safety certification (IEC/EN 62040-1), installation location class (restricted access or ordinary-person area) and battery type.
IEC 2016
Store the EMC category (C1/C2/C3) in the UPS catalog.
IEC 2021
In the UPS catalogue, store the IEC 62040-3 classification (for example VFI-SS-111).
IEC 2013
In the sustainability catalogue, allow UPS environmental declaration fields (materials, end of life, use-phase losses).
IEC 2016
In the power topology, support DC-output UPS and rectifier plants as a source type for DC distribution designs.
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