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Basics
- HVAC and coolingUnited States
机房温湿度:ASHRAE TC9.9 推荐区间与允许区间
- 推荐区间(A1–A4 类设备):进风干球温度 18–27℃,露点不高于 15℃、相对湿度不高于 60%。
- 允许区间按设备等级放宽:A1 为 15–32℃、相对湿度上限 80%,A4 可到 5–45℃。
- 推荐区间是建议而非强制,适当提高送风温度、延长自然冷却时间是降低 PUE 的常用做法。
Technical articles
All typesTechnical analysis 73Incident reviews 8Field experience 31Standards 5Equipment and technology 81Trend research 70
All countriesUnited States 152China 87Germany 4United Kingdom 3Japan 2Italy 2France 2Singapore 2Canada 2Finland 1India 1South Korea 1罗马尼亚 1Denmark 1Norway 1Netherlands 1
- 2026-10-08暖通与制冷Equipment and technologyCanada
超250kW高密AI机柜近全液冷与无风扇散热设计方案
- 机柜功率超250kW时,传统70/30风液混合架构残留的30%风冷负荷高达75kW,促使系统转向风冷负荷低于1%的近全液冷设计以实现无风扇运行
- 高TDP导致热量向内存、网卡、存储及电源扩散,方案结合导热板、均热板、热管及浮动冷板,将非标异构组件整合至单服务器模块化液冷回路
- 随着机柜功率向1MW演进,全热捕获液冷预计2028年成为标配,设计关键在于高可靠快接、管路路由优化及机柜集成装配速度
SourcesHacker News · AIspectrum.ieee.org - 2026-09-28暖通与制冷Equipment and technologyCanada
CoolIT冷板与CDU制造工艺:分流设计、搅拌摩擦焊与6MW测试平台
- 采用搅拌摩擦焊替代传统钎焊工艺,机械连接铜部件形成一体化结构,减少潜在漏液点并提升高功率散热可靠性。
- 采用微通道剖切与分流技术,将冷却液精准导向芯片局部热点并降低冷板压降,散热性能据称比常规流道提升约30%,已验证单相15kW冷板。
- 工厂配备6兆瓦热负荷模拟锅炉与对应制冷能力的测试台,在液冷系统出厂部署前进行全系统级热负荷与运行工况验证。
SourcesData Center Frontierdatacenterfrontier.com
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