File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Experimental study of thermal comfort in an office environment with an underfloor ventilation system

TitleExperimental study of thermal comfort in an office environment with an underfloor ventilation system
Authors
KeywordsAir temperature
Underfloor ventilation
Thermal comfort
Predicted percentage of dissatisfied
Predicted mean vote
Air velocity
Issue Date2002
Citation
Indoor and Built Environment, 2002, v. 11, n. 5, p. 250-265 How to Cite?
AbstractFrequent changes in arrangement in office space and the huge amount of cables brought about by the extensive use of computers make the implementation of raised flooring a necessity in modern office buildings. Underfloor ventilation systems that make use of the underfloor plenum for conditioned air distribution will therefore increase in popularity as they extend the flexibility of building services and take advantage of the raised floor to accommodate the HVAC system. Previous research has revealed that the top return type underfloor system saves a significant amount of energy, as the supply air temperature can be higher than that in a ceiling-based system. However, thermal discomfort due to temperature non-uniformity was also reported. This paper presents the experiment results of a laboratory study of the thermal performance for a floor return (FR) type underfloor system under different heat load densities and supply air temperatures. Vertical temperature differences and air velocities were found to be within the comfort limits stated in major international standards. The measured predicted mean vote and predicted percentage of dissatisfied values also satisfied the ISO Standard 7730. A comfortable environment was maintained by the FR type system under a dense internal heat load and with the supply air temperature set at as high as 18°C. Copyright © 2002 S. Karger AG, Basel.
Persistent Identifierhttp://hdl.handle.net/10722/255852
ISSN
2023 Impact Factor: 3.2
2023 SCImago Journal Rankings: 0.667
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWan, M. P.-
dc.contributor.authorChao, Christopher Y.-
dc.date.accessioned2018-07-16T06:13:51Z-
dc.date.available2018-07-16T06:13:51Z-
dc.date.issued2002-
dc.identifier.citationIndoor and Built Environment, 2002, v. 11, n. 5, p. 250-265-
dc.identifier.issn1420-326X-
dc.identifier.urihttp://hdl.handle.net/10722/255852-
dc.description.abstractFrequent changes in arrangement in office space and the huge amount of cables brought about by the extensive use of computers make the implementation of raised flooring a necessity in modern office buildings. Underfloor ventilation systems that make use of the underfloor plenum for conditioned air distribution will therefore increase in popularity as they extend the flexibility of building services and take advantage of the raised floor to accommodate the HVAC system. Previous research has revealed that the top return type underfloor system saves a significant amount of energy, as the supply air temperature can be higher than that in a ceiling-based system. However, thermal discomfort due to temperature non-uniformity was also reported. This paper presents the experiment results of a laboratory study of the thermal performance for a floor return (FR) type underfloor system under different heat load densities and supply air temperatures. Vertical temperature differences and air velocities were found to be within the comfort limits stated in major international standards. The measured predicted mean vote and predicted percentage of dissatisfied values also satisfied the ISO Standard 7730. A comfortable environment was maintained by the FR type system under a dense internal heat load and with the supply air temperature set at as high as 18°C. Copyright © 2002 S. Karger AG, Basel.-
dc.languageeng-
dc.relation.ispartofIndoor and Built Environment-
dc.subjectAir temperature-
dc.subjectUnderfloor ventilation-
dc.subjectThermal comfort-
dc.subjectPredicted percentage of dissatisfied-
dc.subjectPredicted mean vote-
dc.subjectAir velocity-
dc.titleExperimental study of thermal comfort in an office environment with an underfloor ventilation system-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1159/000066525-
dc.identifier.scopuseid_2-s2.0-0036442248-
dc.identifier.volume11-
dc.identifier.issue5-
dc.identifier.spage250-
dc.identifier.epage265-
dc.identifier.isiWOS:000180035000002-
dc.identifier.issnl1420-326X-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats