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The role of design ...
The role of design parameters on the performance of diffuse ceiling ventilation systems – thermal comfort analyses for indoor environment
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- Sadeghian, Parastoo (författare)
- KTH,Hållbara byggnader,Fluid and climate Technology,KTH Royal Inst Technol, Dept Civil & Architectural Engn, Brinellvagen 23, SE-10044 Stockholm, Sweden.
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- Rahnama, Samira (författare)
- Aalborg University Copenhagen,Aalborg Univ, Dept Built Environm, Copenhagen, Denmark.
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- Afshari, Alireza (författare)
- Aalborg University Copenhagen,Aalborg Univ, Dept Built Environm, Copenhagen, Denmark.
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- Sadrizadeh, Sasan (författare)
- Mälardalens universitet,KTH,Hållbara byggnader,School of Business, Society and Engineering, Mälardalen University, Sweden,Framtidens energi,KTH Royal Inst Technol, Dept Civil & Architectural Engn, Brinellvagen 23, SE-10044 Stockholm, Sweden.
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(creator_code:org_t)
- 2022-08-14
- 2022
- Engelska.
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Ingår i: Advances in Building Energy Research. - : Informa UK Limited. - 1751-2549 .- 1756-2201. ; , s. 1-19
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Thermal comfort conditions profoundly affect the occupants’ health and productivity. A diffuse ceiling ventilation system is an air distribution system in which the air is supplied to the occupied zone with relatively a low velocity through the perforated panels installed in the ceiling. The current study evaluated the impact of diffuse ceiling design parameters, i.e. diffuse panel configurations and heat load distributions, on the thermal comfort condition of the occupants. In this regard, the computational fluid dynamics technique was used to evaluate thermal comfort conditions in a waiting room, meeting room and office. The central and dispersal configuration of active diffuse panels was considered. The PMV-PPD model was applied to evaluate the overall occupants’ comfort, while the draft rate was considered to assess local thermal comfort. The model validation was performed by comparing the collected laboratory measurement data. Overall, the results indicated that the central active diffuse panel configuration had a better thermal comfort than the dispersed one. The evaluation of dispersed configuration in realist scenarios, including office and waiting room, had the highest dissatisfaction, with a PPD value of 9%. Local thermal comfort assessment revealed that dispersed configuration had the highest draft rate of 14% in the office.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Annan samhällsbyggnadsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Other Civil Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- Diffuse ceiling ventilation
- thermal comfort
- PMV-PPD model
- draft rate
- computational fluid dynamics simulation
- Strömnings- och klimatteori
- Fluid and Climate Theory
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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