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Étude expérimentale des performances d’un nouveau conditionneur d’air pour les centres de données qui combine refroidissement à l’air et refroidissement évaporatif.

Experimental study on the performance of a novel data center air conditioner combining air cooling and evaporative cooling.

Auteurs : ZHANG Y., HAN H., LI J., ZHENG Y., LIU C., LIU Y., GAO D.

Type d'article : Article de la RIF

Résumé

Addressing challenges of high-temperature shutdowns, low energy efficiency, and limited natural cooling utilization in data center air conditioning, a novel hybrid air cooling and evaporative cooling air-conditioning(ACEC-AC) system has been developed. The system is well-suited for application in data centers located in regions with high outdoor temperatures and large dry-bulb to wet-bulb temperature differences during summer. Experimental evaluations in an enthalpy difference laboratory revealed that the hybrid system's performance in wet mode (combining air cooling and evaporative cooling) significantly outperforms its dry mode (solely air cooling) and traditional cooling units. At an outdoor temperature of 35.60 °C dry-bulb and 29.95 °C wet-bulb, the system achieved a COP of 3.85, a 21.45 % improvement over dry mode and 16.16 % higher than conventional Packaged computer room air conditioning (CRAC). Notably, the system maximizes its benefits in regions like Guangzhou, where the temperature difference between the dry bulb and wet bulb is significant, resulting in an annual operational cost savings of over 34.16 %. In conclusion, the hybrid air cooling and evaporative cooling system represents an effective energy-saving technology with great potential to enhance data center performance and reduce energy consumption.

Documents disponibles

Format PDF

Pages : 98-112

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental study on the performance of a novel data center air conditioner combining air cooling and evaporative cooling.
  • Identifiant de la fiche : 30033351
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 170
  • Date d'édition : 02/2025
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2024.11.010

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