Experimental investigation of occupants’ thermal sensation under a personalized ventilation system

P. Ebrahimi Naghani, S.A. Zolfaghari, M. Maerefat, J. Toftum, S.M. Hooshmand, M. Izadi

    Research output: Contribution to conferencePaperResearchpeer-review

    Abstract

    By considering the importance of providing proper indoor environment conditions for occupants and also due to energy costs, one of the solutions for indoor local airconditioning is Personalized Ventilation System (PVS). In this paper, the occupants’ thermal sensation was experimentally studied for body segments that are mostly affected by the PVS. The local sensation of head, chest, arm, and hand at two supply air temperatures of 16 and 32°C were investigated. Eight volunteer subjects participated in this survey. The subjects reported the most thermal satisfaction on their hands. Also, the arms were the segments with the coolest thermal sensation (-1.28, between slightly cool and cold). Results indicate that the head’s thermal sensation at both supply air temperatures was neutral and the hand was the only body part that experienced warm thermal sensation during the test. Also, by increasing the supply air temperature to 32°C whole body thermal sensation changed from -0.46 to -0.09 on the seven-point scale, which means that the cooling system worked properly for occupants’ cooling. In this system, cooling occurred at 32°C instead of the common 16°C supply air temperature, which results in energy-saving and decreases annual running costs.
    Original languageEnglish
    Publication date2021
    Number of pages7
    Publication statusPublished - 2021
    Event8th International Buildings Physics Conference 2021 - Online event, Copenhagen, Denmark
    Duration: 25 Aug 202127 Aug 2021
    Conference number: 8
    https://www.ibpc2021.org/

    Conference

    Conference8th International Buildings Physics Conference 2021
    Number8
    LocationOnline event
    Country/TerritoryDenmark
    CityCopenhagen
    Period25/08/202127/08/2021
    Internet address

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