Abstract
Condensation under the floor slabs of office rooms adjoining data centres is a serious concern because thermal comfort and information and communications technology equipment are both sensitive to high humidity levels. Surface condensation risk depends mainly on the surface energy balance and moisture content of ambient air. This paper describes an evaluation method for assessing condensation risk of indoor environment conditions and the effect of remedial measures and presents a strategy to solve the condensation risk problems using experimental measurements and numerical simulations. The condensation risks due to air temperature and humidity were calculated for two zones between information and communications technology server rooms and office areas. We analysed the structural insulation performance and space cooling conditions, supply air temperature of the information and communications technology server rooms. The change in indoor temperature of non-information and communications technology spaces was predicted to find the cause of the condensation state. The results show that application of floor slab insulation and high supply air temperature by the computer room air-conditioning unit can substantially increase the lowest temperature of the interior surfaces and the temperature factor and reduce indoor relative humidity, thus preventing surface condensation in the non-information and communications technology spaces adjacent to the information and communications technology server rooms.
| Original language | English |
|---|---|
| Pages (from-to) | 1362-1381 |
| Number of pages | 20 |
| Journal | Indoor and Built Environment |
| Volume | 26 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2017 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Public Health, Environmental and Occupational Health
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Experimental investigation on hygrothermal behaviour and the surface condensation risk of a data centre. / Cho, Jinkyun; Park, Sanghyun; Lim, Taesub; Kim, Byungseon.
In: Indoor and Built Environment, Vol. 26, No. 10, 01.12.2017, p. 1362-1381.Research output: Contribution to journal › Article
TY - JOUR
T1 - Experimental investigation on hygrothermal behaviour and the surface condensation risk of a data centre
AU - Cho, Jinkyun
AU - Park, Sanghyun
AU - Lim, Taesub
AU - Kim, Byungseon
PY - 2017/12/1
Y1 - 2017/12/1
N2 - Condensation under the floor slabs of office rooms adjoining data centres is a serious concern because thermal comfort and information and communications technology equipment are both sensitive to high humidity levels. Surface condensation risk depends mainly on the surface energy balance and moisture content of ambient air. This paper describes an evaluation method for assessing condensation risk of indoor environment conditions and the effect of remedial measures and presents a strategy to solve the condensation risk problems using experimental measurements and numerical simulations. The condensation risks due to air temperature and humidity were calculated for two zones between information and communications technology server rooms and office areas. We analysed the structural insulation performance and space cooling conditions, supply air temperature of the information and communications technology server rooms. The change in indoor temperature of non-information and communications technology spaces was predicted to find the cause of the condensation state. The results show that application of floor slab insulation and high supply air temperature by the computer room air-conditioning unit can substantially increase the lowest temperature of the interior surfaces and the temperature factor and reduce indoor relative humidity, thus preventing surface condensation in the non-information and communications technology spaces adjacent to the information and communications technology server rooms.
AB - Condensation under the floor slabs of office rooms adjoining data centres is a serious concern because thermal comfort and information and communications technology equipment are both sensitive to high humidity levels. Surface condensation risk depends mainly on the surface energy balance and moisture content of ambient air. This paper describes an evaluation method for assessing condensation risk of indoor environment conditions and the effect of remedial measures and presents a strategy to solve the condensation risk problems using experimental measurements and numerical simulations. The condensation risks due to air temperature and humidity were calculated for two zones between information and communications technology server rooms and office areas. We analysed the structural insulation performance and space cooling conditions, supply air temperature of the information and communications technology server rooms. The change in indoor temperature of non-information and communications technology spaces was predicted to find the cause of the condensation state. The results show that application of floor slab insulation and high supply air temperature by the computer room air-conditioning unit can substantially increase the lowest temperature of the interior surfaces and the temperature factor and reduce indoor relative humidity, thus preventing surface condensation in the non-information and communications technology spaces adjacent to the information and communications technology server rooms.
UR - http://www.scopus.com/inward/record.url?scp=85034981994&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85034981994&partnerID=8YFLogxK
U2 - 10.1177/1420326X16657402
DO - 10.1177/1420326X16657402
M3 - Article
AN - SCOPUS:85034981994
VL - 26
SP - 1362
EP - 1381
JO - Indoor and Built Environment
JF - Indoor and Built Environment
SN - 1420-326X
IS - 10
ER -