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Étude d'un système de refroidissement par l'air extérieur avec un économiseur à la fois côté air et côté eau pour les centres de données. 1. Comparaison de l'efficacité de chaque système.

[In Japanese. / En japonais.]

Auteurs : SHIMMURA K., YAMASHITA T.

Type d'article : Article

Résumé

This study aims to achieve a higher efficiency of outdoor air cooling systems for data centers. The annual power consumption of air conditioning facilities was calculated after modeling the systems using air-side economizer with evaporative humidifier and water-side economizer with cooling tower. The efficiency of each system was improved by operating the economizer in single mode in winter season and by adding a chiller mode during an intermediate season such as spring or fall. Furthermore, an outdoor air cooling system with a combination of both economizers was proposed. These three systems and a base system were compared, and the influence of outdoor air conditions on the power consumption in various parts of Japan was examined. As a result, it was found that when the base system uses water heat source in a high efficiency turbo refrigerating machine with inverter, the power of the combined economizer system is 80-90% of the base power.

Détails

  • Titre original : [In Japanese. / En japonais.]
  • Identifiant de la fiche : 30013697
  • Langues : Anglais
  • Source : Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan - n. 210
  • Date d'édition : 09/2014

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