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Data center power, cooling, water and fire: power distribution, cooling, environment monitoring, fire safety and operations

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All directionsPower distribution 86HVAC and cooling 100Environment monitoring 7Fire and safety 8Facilities and infrastructure 47Operations 14

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。
    SourcesASHRAE 第 5 版参考卡（PDF）ashrae.orgUpsite 解读upsite.com

Technical articles

All typesTechnical analysis 71Incident reviews 8Field experience 31Standards 5Equipment and technology 78Trend research 69
All countriesUnited States 149China 85Germany 4United Kingdom 3France 2Italy 2Canada 2Singapore 2Japan 2Denmark 1India 1Norway 1Netherlands 1South Korea 1罗马尼亚 1
  • 2019-07-10暖通与制冷Technical analysisUnited Kingdom

    混合自然冷却技术选型及制冷剂隐性成本与合规分析

    • 混合冷却以20°C为切换节点，高温下为水冷DX运行，低温下通过比例阀协同自然冷却盘管与DX，完全低温时纯自然冷却，占系统运行模式的50%～68%。
    • 将机房回风温度从24℃提高到27℃可拓展自然冷却工况，每年可节省额外40%的成本；500kW中型数据中心混合冷却投资回收期约3～4年。
    • 环保法规加速制冷剂涨价且要求建立5年充注与回收台账；分布式小充注量混合系统比集中式200kg单机冷水机组大幅降低单次泄漏与合规成本风险。
    Sources中国IDC圈·空调制冷dc.idcquan.com

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