| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 787043 | International Journal of Refrigeration | 2013 | 15 Pages |
The energy use in data centers is on an accelerating rise due to both demand and technological limitations. Today, the most widely used cooling strategy for data centers is refrigerated air-cooling. Unfortunately, air-cooling presents phenomenally low efficiencies. Therefore green computing paradigms are needed to improve energy efficiency by several orders of magnitude and allow a continued chip scaling for tackling the energy crisis in future-generation data centers. A promising solution would be implementing direct on-chip two-phase cooling technology, which not only improves the heat removal efficiency but also permits the reuse of waste heat since the two-phase coolant can cool CPUs effectively at 60 °C. In the present work a specific cooling cycle using micro-evaporation technology has been experimentally evaluated considering different aspects such as cooling cycle and energy recovery efficiencies and controllability. In resume, this novel cycle shows strong competence in energy usage, heat recovery and controllability towards green data center.
► Designed, built and experimentally evaluated an on-chip two-phase cooling system. ► Designed specific controllers for controlling the relevant parameters of the system. ► Investigated energy consumption, energetic efficiency and controllability. ► Performance mapping tests considering cooling cycle and heat recovery efficiencies. ► Pseudo-chips below the limit of 85 °C for steady-state and transient conditions.
