Abstract
Growth in ICT has led to increased demands on data centers. Highly reliable operations of data centers require an efficient and robust air-conditioning system. In most data centers, circulating air enters at the floor level, and returns at the ceiling level (floor supply design). However, the authors have developed an airflow design in which air is both supplied and returned at the ceiling level (ceiling supply design). To compare the cooling characteristics of both designs, temperatures were measured in a full-scale model of a data center. For both designs, changes in cooling characteristics were evaluated in response to changes in heat density, supply-air volume, and supply-air temperature. In addition, the authors studied the effects of separating cold and hot aisles by hanging walls from the ceiling between aisles. Dimensionless indices, dimensionless rack-temperatures, and values of the rack-cooling index (RCI) were used to compare the cooling characteristics of the two designs. The authors confirm that ceiling supply design is more robust regarding changes in major design parameters compared to floor supply design.
| Original language | English |
|---|---|
| Pages (from-to) | 491-498 |
| Number of pages | 8 |
| Journal | Journal of Asian Architecture and Building Engineering |
| Volume | 13 |
| Issue number | 2 |
| Publication status | Published - 2014 |
| Externally published | Yes |
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Keywords
- Airflow design
- Cooling characteristics
- Data centers
- Temperature
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Architecture
- Arts and Humanities (miscellaneous)
- Cultural Studies
Cite this
Experimental study of airflow designs for data centers. / Tsuchiya, Takashi; Suwa, Yoshihide; Ooka, Ryozo.
In: Journal of Asian Architecture and Building Engineering, Vol. 13, No. 2, 2014, p. 491-498.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental study of airflow designs for data centers
AU - Tsuchiya, Takashi
AU - Suwa, Yoshihide
AU - Ooka, Ryozo
PY - 2014
Y1 - 2014
N2 - Growth in ICT has led to increased demands on data centers. Highly reliable operations of data centers require an efficient and robust air-conditioning system. In most data centers, circulating air enters at the floor level, and returns at the ceiling level (floor supply design). However, the authors have developed an airflow design in which air is both supplied and returned at the ceiling level (ceiling supply design). To compare the cooling characteristics of both designs, temperatures were measured in a full-scale model of a data center. For both designs, changes in cooling characteristics were evaluated in response to changes in heat density, supply-air volume, and supply-air temperature. In addition, the authors studied the effects of separating cold and hot aisles by hanging walls from the ceiling between aisles. Dimensionless indices, dimensionless rack-temperatures, and values of the rack-cooling index (RCI) were used to compare the cooling characteristics of the two designs. The authors confirm that ceiling supply design is more robust regarding changes in major design parameters compared to floor supply design.
AB - Growth in ICT has led to increased demands on data centers. Highly reliable operations of data centers require an efficient and robust air-conditioning system. In most data centers, circulating air enters at the floor level, and returns at the ceiling level (floor supply design). However, the authors have developed an airflow design in which air is both supplied and returned at the ceiling level (ceiling supply design). To compare the cooling characteristics of both designs, temperatures were measured in a full-scale model of a data center. For both designs, changes in cooling characteristics were evaluated in response to changes in heat density, supply-air volume, and supply-air temperature. In addition, the authors studied the effects of separating cold and hot aisles by hanging walls from the ceiling between aisles. Dimensionless indices, dimensionless rack-temperatures, and values of the rack-cooling index (RCI) were used to compare the cooling characteristics of the two designs. The authors confirm that ceiling supply design is more robust regarding changes in major design parameters compared to floor supply design.
KW - Airflow design
KW - Cooling characteristics
KW - Data centers
KW - Temperature
UR - http://www.scopus.com/inward/record.url?scp=84900820606&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84900820606&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84900820606
VL - 13
SP - 491
EP - 498
JO - Journal of Asian Architecture and Building Engineering
JF - Journal of Asian Architecture and Building Engineering
SN - 1346-7581
IS - 2
ER -