Topic guide
Explore technical publications on data centre cooling systems, thermal loads and operating conditions. Review air and liquid approaches, energy use and operational requirements within each source’s scope.
217–240 / 339
ASHRAE 2023
The tool can compute 90.4 MLC and ELC directly from its mechanical and electrical one-lines: segment losses, UPS efficiency at 100/50/25% load and hourly weather by climate zone.
TMMOB Makina Mühendisleri Odası (MMO) 2023
In the catalogue, add test-standard and witness-test fields for IEC/DC AHUs: ASHRAE 143 rating, tested capacity, factory witness test yes/no.
KPMG Türkiye 2025
For racks above about 70 kW, warn that air cooling is insufficient and require a liquid-cooling path.
Türk Tesisat Mühendisleri Derneği (TTMD) - TTMD Dergisi 2021
In the site-selection tool, surface free-cooling hours by province for Turkish sites.
Türk Tesisat Mühendisleri Derneği (TTMD) - TTMD Dergisi 2021
Offer a W-class selector for liquid-cooled systems that sets supply-temperature ranges and links to whether chillers, dry coolers or towers are needed.
TMMOB Makina Mühendisleri Odası (MMO) 2025
In the commissioning module, include a TAB task list per cooling unit and hydronic circuit (design versus measured airflow, water flow, differential pressure, set points).
Schneider Electric 2015
Model PUE as a load-dependent curve of fixed plus proportional losses and show it at day-1, partial and full IT load rather than as one number.
Open Compute Project Foundation 2022
Default liquid-cooled designs to warm facility water (W40/W45) in chiller-free or dry-cooler-only plant options, citing this paper as supporting evidence.
Uptime Institute Journal 2025
Model annual water use from heat rejection type, set points and hourly climate rather than a fixed WUE.
Consulting-Specifying Engineer 2023
Flag hot-climate risks in site design checks: ambient above 115 F, and recirculation between chillers and generator exhaust; suggest CFD.
Upsite Technologies blog 2019
Server catalogue entries should store the manufacturer's min/max inlet temperature and derive the ASHRAE class from it.
Rittal 2013
Model cooler redundancy explicitly: 2N may come from two units or one unit with dual independent power and water feeds, so catalogue entries need an 'internal redundancy' field.
Rittal 2012
Catalogue rear-door coolers with a passive/active flag, kW capacity and air-side pressure drop.
Huawei Digital Power 2023
Show WUE alongside PUE in the metrics panel, with region-specific targets as policy presets.
Open Compute Project Foundation 2024
The energy model should report PUE with its category (1/2/3), load point and sampling period.
Rittal 2015
In the free-cooling estimator compute economiser hours from hourly climate data against the required water supply temperature and report the percentage of the year.
Rittal 2017
Catalogue close-coupled coolers by type (inline row, closed-loop rack, rear door, DX rack), rated kW, width, footprint, maximum air delta-T and water/refrigerant inlet temperatures.
Uptime Institute Journal (Uptime Institute) 2020
Add a vestibule or airlock option to the edge enclosure template.
The Green Grid 2009
In the cooling advisor, tag each recommended measure (containment, set-point raise, economisation and so on) with its effect on the cooling component of PUE.
The Green Grid 2007
Use as seed content for the tool's efficiency-measure checklist, linking each measure to the subsystem it affects.
The Green Grid 2009
In the energy model, present a Sankey or loss breakdown by zone (utility/MV, UPS, PDU, cooling plant, room air).
The Green Grid 2009
In rack and IT load entry, let users enter measured or vendor-calculator power instead of nameplate.
The Green Grid 2011
In a cooling option matrix, present architectures (room CRAH, in-row, rear-door, chilled-water versus DX, economised) with qualitative pros and cons.
The Green Grid 2011
Offer air-side and water-side economizer modes by default in the cooling wizard.
All content and rights belong to the respective authors and publishers. SoSo CAD provides only the citation, its own summary and a link to the source, and is not responsible for the sources' content.
Monthly newsletter · free
Once a month: new library sources, changes to Turkish regulations and upcoming data centre events.
