S服务器机房排出巨大且恒定的热量。在排风与补风气流之间设置能量回收转轮可降低制冷负荷，并将这部分热量转用于相邻办公空间采暖。对于追求 PUE 的数据中心，对通风空气进行回收是一项直接收益。
The load you can recover
IT power is almost entirely converted to heat. Roughly 1 kW of IT equipment rejects ~1 kW of heat. A modest hall of 100 racks at 5 kW each rejects about 500 kW — most of it carried away by the cooling and ventilation air, not the servers themselves.
- 补风： 数据中心引入室外空气用于增压和免费制冷。
- 排风： 回风气流以温热状态离开，在免费制冷模式下直接排向大气。
- 缺口： 能量回收转轮将这两股气流连接起来。
Rotary wheel vs run-around coil
| 选项 | 效率 | 备注 |
|---|---|---|
| 旋转式能量回收转轮 | 70–85% (total) | 紧凑，且能回收湿度；需配置 purge 扇区以实现隔离 |
| 间接式循环盘管 | 40–60% (sensible) | 无空气混合；泵＋管路；适用于两股气流相距较远时 |
| Plate exchanger | 60–75% (sensible) | 无运动部件；更简单但占用面积更大 |
对于空间狭小的机房， 旋转轮 是最有效的选择； 板式或绕管式盘管 在设计严禁任何排风与送风混合可能性的场合更为可取。
Where the recovered heat goes
- 相邻办公室 VAV 末端箱再热。
- 建筑 HVAC 室外空气预热。
- 大型园区生活热水预热。
将回收与我们的 选型设计指南 以及 厨房回收示例 playbook — the airflow and temperature logic is the same.
为数据机房进行回收选型？
EN159 builds plate, rotary, heat-pipe and counterflow air-to-air exchangers for data-center make-up and exhaust air. Send airflow (m³/h), supply and exhaust temperatures and the available footprint.
Related reading
常见问题
How much heat can a data center recovery wheel realistically reclaim?
In a data hall nearly all IT power becomes heat, so a rotary wheel rated 70 to 85 percent total effectiveness can return a large share of the ventilation energy to adjacent loads such as VAV reheat or make-up air preheat. Actual savings scale with airflow and the winter temperature lift.
Will a rotary wheel mix exhaust air back into the supply?
A properly specified wheel includes a purge sector that scavenges residual exhaust from the matrix before it reaches the supply sector, keeping cross-leakage very small. Where any mixing is unacceptable, a plate or run-around coil provides complete stream separation.
Where does the recovered data center heat usually go?
Common sinks are reheat for VAV terminal boxes in adjacent office space, preheat of outdoor air for the building HVAC, and domestic water pre-heat on larger campuses. Pairing recovery with the site existing sizing logic keeps the integration straightforward.
Is a rotary wheel or a run-around coil better for a tight plant room?
A rotary wheel is the most compact option and also recovers humidity, which helps in humid climates. A run-around coil is preferred when ducts are far apart or when the design forbids any chance of exhaust-to-supply mixing.
相关产品
面向暖通空调与通风的板式、旋转式或热管回收。
空气与液体用大表面积固定芯体。
大风量用高效能量回收。
用于洁净场合的被动、完全分离气流。