Diffuse ceiling ventilation: Air distribution and thermal comfort

Research output: Book/ReportPh.D. thesisResearch

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Abstract

Diffuse ceiling ventilation is an innovative ventilation concept where the suspended ceiling serves as air diffuser to supply fresh air into the room. Compared with conventional ventilation systems, diffuse ceiling ventilation can significantly reduce or even eliminate draught risk due to the low momentum supply. In addition, this ventilation system uses a ceiling plenum to deliver air and requires less energy consumption for air transport than full-ducted systems. There is a growing interest in applying diffuse ceiling ventilation in offices and other commercial buildings due to the benefits from both thermal comfort and energy efficient aspects.

The present study aims to characterize the air distribution and thermal comfort in the rooms with diffuse ceiling ventilation. Both the stand-alone ventilation system and its integration with a radiant ceiling system are investigated. This study also presents the development and validation of a numerical model for predicting the airflow pattern and thermal behavior in the room with diffuse ceiling ventilation. The validated model is further used to investigate the effect of different design parameters on the system performance.
Original languageEnglish
PublisherAalborg Universitetsforlag
Number of pages79
ISBN (Electronic)978-87-7112-771-3
DOIs
Publication statusPublished - 2016
SeriesPh.d.-serien for Det Teknisk-Naturvidenskabelige Fakultet, Aalborg Universitet
ISSN2246-1248

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  • Prizes

    ELforsk Prisen 2017

    Zhang, Chen (Recipient) & Heiselberg, Per (Recipient), 2017

    Prize: Other prizes

    Cite this

    Zhang, C. (2016). Diffuse ceiling ventilation: Air distribution and thermal comfort. Aalborg Universitetsforlag. Ph.d.-serien for Det Teknisk-Naturvidenskabelige Fakultet, Aalborg Universitet https://doi.org/10.5278/vbn.phd.engsci.00142