Comparing thermal comfort and air quality performance of two active chilled beam systems in an open-plan office

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Fältnamn	Indikatorer	Metadata
000		03465naa a2200397 4500
001		oai:DiVA.org:hig-28583
003		SwePub
008		181122s2019 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-285832 URI
024	7	a https://doi.org/10.1016/j.jobe.2018.11.0132 DOI
040		a (SwePub)hig
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Cehlin, Mathias,c Doktor,d 1974-u Högskolan i Gävle,Energisystem och byggnadsteknik,Energisystem4 aut0 (Swepub:hig)mcn
245	1 0	a Comparing thermal comfort and air quality performance of two active chilled beam systems in an open-plan office
264	1	b Elsevier,c 2019
338		a print2 rdacarrier
520		a The traditional air distribution and supply devices in ventilated rooms are not always able to effectively remove excess heat from the space. Therefore, chilled beams, especially the active systems, are used to achieve the desired cooling demand. The focus of this paper was the potential benefit of a newly designed active chilled beam (ACB) system, to improve heat removal effectiveness local thermal condition and indoor air quality in the occupants’ breathing zone. The system based on 1-way flow design (1W-ACB) was installed in an open-plan office and its performance was studied by analysing the temperatures, velocities and tracer gas concentrations in predetermined risky zones. The system was compared against a traditional 4-way flow design (4W-ACB).The obtained results showed that heat removal effectiveness was slightly higher for the 1W-ACB system compared to the 4W-ACB system. The local thermal condition was very good close to the workstations when using 1W-ACB. The benefits of the new system were also shown in the occupied zone by analysing the mean age of air and air-change effectiveness (ACE) in the breathing level at the workstation locations. The 1W-ACB system provided air with lower mean age (fresher air), and therefore higher ACE, near the breathing zone at the workstations compared to the 4W-ACB. On the other hand, the 4W-ACB system had the advantage of providing high thermal and mean age of air uniformity throughout the room.
650	7	a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Energiteknik0 (SwePub)203042 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Energy Engineering0 (SwePub)203042 hsv//eng
653		a Active Chilled Beam
653		a Air Change Effectiveness
653		a Heat Removal Effectiveness
653		a Hållbar stadsutveckling
653		a Sustainable Urban Development
700	1	a Karimipanah, Taghi,c Professor,d 1953-u Högskolan i Gävle,Energisystem och byggnadsteknik4 aut0 (Swepub:hig)tkh
700	1	a Larsson, Ulf,c Doktor,d 1964-u Högskolan i Gävle,Energisystem och byggnadsteknik4 aut0 (Swepub:hig)ulf
700	1	a Ameen, Arman,d 1976-u Högskolan i Gävle,Energisystem och byggnadsteknik,Energisystem4 aut0 (Swepub:hig)arnamn
710	2	a Högskolan i Gävleb Energisystem och byggnadsteknik4 org
773	0	t Journal of Building Engineeringd : Elsevierg 22, s. 56-65q 22<56-65x 2352-7102
856	4	u https://doi.org/10.1016/j.jobe.2018.11.013y Fulltext
856	4	u https://doi.org/10.1016/j.jobe.2018.11.013
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-28583
856	4 8	u https://doi.org/10.1016/j.jobe.2018.11.013

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