Viability of datacenter cooling systems for energy efficiency in temperate or subtropical regions

Case study

Jinkyun Cho, Taesub Lim, Byungseon Kim

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

In general, a proper balance of temperature and humidity control is essential for efficient datacenter operation and is integral to protecting the significant investment in computer and network technology in datacenter facilities. However, the rising costs of energy and the drive to be green are resulting in a greater demand to conserve energy. One method of reducing facility costs for a chilled water plant is by adding an economizer. The purpose of this study is to develop energy models of the most common economizer systems. A normal chiller plant with an air-side economizer and a water-side economizer are compared. Results show that outdoor conditions influence facility energy consumption. This paper provides terminology and definitions for the two different types of economizer modes and compares their energy performance against key datacenter attributes in temperate or subtropical regions. The electrical end use breakdown and the Power Usage Effectiveness (PUE) value for a typical year were estimated. The water-side economizer made it possible to achieve a maximum energy performance improvement of about 16.6% over the reference base cooling system, whereas the air-side economizer made it possible to achieve about 42.4% improvement.

Original languageEnglish
Pages (from-to)189-197
Number of pages9
JournalEnergy and Buildings
Volume55
DOIs
Publication statusPublished - 2012 Dec 1

Fingerprint

Economizers
Cooling systems
Energy efficiency
Humidity control
Water
Terminology
Air
Temperature control
Costs
Energy utilization

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

@article{8f9f33beb5a547c59f24a4c38087202d,
title = "Viability of datacenter cooling systems for energy efficiency in temperate or subtropical regions: Case study",
abstract = "In general, a proper balance of temperature and humidity control is essential for efficient datacenter operation and is integral to protecting the significant investment in computer and network technology in datacenter facilities. However, the rising costs of energy and the drive to be green are resulting in a greater demand to conserve energy. One method of reducing facility costs for a chilled water plant is by adding an economizer. The purpose of this study is to develop energy models of the most common economizer systems. A normal chiller plant with an air-side economizer and a water-side economizer are compared. Results show that outdoor conditions influence facility energy consumption. This paper provides terminology and definitions for the two different types of economizer modes and compares their energy performance against key datacenter attributes in temperate or subtropical regions. The electrical end use breakdown and the Power Usage Effectiveness (PUE) value for a typical year were estimated. The water-side economizer made it possible to achieve a maximum energy performance improvement of about 16.6{\%} over the reference base cooling system, whereas the air-side economizer made it possible to achieve about 42.4{\%} improvement.",
author = "Jinkyun Cho and Taesub Lim and Byungseon Kim",
year = "2012",
month = "12",
day = "1",
doi = "10.1016/j.enbuild.2012.08.012",
language = "English",
volume = "55",
pages = "189--197",
journal = "Energy and Buildings",
issn = "0378-7788",
publisher = "Elsevier BV",

}

Viability of datacenter cooling systems for energy efficiency in temperate or subtropical regions : Case study. / Cho, Jinkyun; Lim, Taesub; Kim, Byungseon.

In: Energy and Buildings, Vol. 55, 01.12.2012, p. 189-197.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Viability of datacenter cooling systems for energy efficiency in temperate or subtropical regions

T2 - Case study

AU - Cho, Jinkyun

AU - Lim, Taesub

AU - Kim, Byungseon

PY - 2012/12/1

Y1 - 2012/12/1

N2 - In general, a proper balance of temperature and humidity control is essential for efficient datacenter operation and is integral to protecting the significant investment in computer and network technology in datacenter facilities. However, the rising costs of energy and the drive to be green are resulting in a greater demand to conserve energy. One method of reducing facility costs for a chilled water plant is by adding an economizer. The purpose of this study is to develop energy models of the most common economizer systems. A normal chiller plant with an air-side economizer and a water-side economizer are compared. Results show that outdoor conditions influence facility energy consumption. This paper provides terminology and definitions for the two different types of economizer modes and compares their energy performance against key datacenter attributes in temperate or subtropical regions. The electrical end use breakdown and the Power Usage Effectiveness (PUE) value for a typical year were estimated. The water-side economizer made it possible to achieve a maximum energy performance improvement of about 16.6% over the reference base cooling system, whereas the air-side economizer made it possible to achieve about 42.4% improvement.

AB - In general, a proper balance of temperature and humidity control is essential for efficient datacenter operation and is integral to protecting the significant investment in computer and network technology in datacenter facilities. However, the rising costs of energy and the drive to be green are resulting in a greater demand to conserve energy. One method of reducing facility costs for a chilled water plant is by adding an economizer. The purpose of this study is to develop energy models of the most common economizer systems. A normal chiller plant with an air-side economizer and a water-side economizer are compared. Results show that outdoor conditions influence facility energy consumption. This paper provides terminology and definitions for the two different types of economizer modes and compares their energy performance against key datacenter attributes in temperate or subtropical regions. The electrical end use breakdown and the Power Usage Effectiveness (PUE) value for a typical year were estimated. The water-side economizer made it possible to achieve a maximum energy performance improvement of about 16.6% over the reference base cooling system, whereas the air-side economizer made it possible to achieve about 42.4% improvement.

UR - http://www.scopus.com/inward/record.url?scp=84870613261&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870613261&partnerID=8YFLogxK

U2 - 10.1016/j.enbuild.2012.08.012

DO - 10.1016/j.enbuild.2012.08.012

M3 - Article

VL - 55

SP - 189

EP - 197

JO - Energy and Buildings

JF - Energy and Buildings

SN - 0378-7788

ER -