Data Center Precision AC Rotary Heat Recovery Solution (PUE Optimization)

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Project Background

An IDC server room deploys about 2,000 cabinets, and the year-round exhaust continuously carries away large amounts of cooling energy.

Challenges

24/7 cooling is required; PUE stays high and electricity cost is a heavy burden.

Solution

Precision-AC exhaust passes throughRotary Heat ExchangerPre-cools the fresh air and uses part of the recovered cooling for heating adjacent office areas, achieving combined cooling-and-heating utilization.

Results

AHU cooling load reduced by 18%, saving about 1.2 million kWh of electricity per year and significantly optimizing PUE.

数据中心 PUE 优化

数据中心散热负荷巨大，转轮热回收可将排风冷量用于预处理新风或相邻低品位冷源，降低精密空调能耗，助力 PUE 优化。在北方或过渡季效果尤为明显，是数据中心节能改造的有效手段之一。

Application scenarios

在北方或过渡季较长地区排风冷量回收效益更突出，也可与自然冷却联动进一步压低 PUE，需校核湿度与结露风险。

Application scenarios

在北方或过渡季较长地区排风冷量回收效益更突出，也可与自然冷却联动进一步压低 PUE，需校核湿度与结露风险，避免冷量回收引发冷凝或设备损坏问题。

数据中心改造宜结合既有空调架构，尽量减少对在线业务的影响；可分阶段切换，并在过渡期密切监测温湿度与能耗。

改造宜与既有冷却架构协同设计，分阶段切换并密切监测，既降低对在线业务的影响，也能在过渡期积累真实运行数据用于持续优化与效果验证。