Autors: Naydenov K., Pitchurov, G. T., Langkilde G., Melikov A.
Title: Performance of displacement ventilation in practice
Keywords: displacement ventilation

Abstract: This paper presents results of a field study in offices with displacement ventilation. It comprises detailed physical measurements of the thermal environment and collection of occupants’ response at 227 workplaces. The results, both physical measurements and human response, identified draught as the major local discomfort in the rooms with displacement ventilation. Twenty three percent of the occupants were daily bothered by draught. In some buildings the maintenance personnel tried to improve occupants’ thermal comfort by raising the supply air temperature or office workers themselves blocked the diffusers by rearranging the furniture. Half of the surveyed occupants were not satisfied with the indoor air quality. The main conclusion is that displacement ventilation needs careful design and room furnishing in order to ensure a comfortable environment. Occupants must understand the underlying ventilation principle. This will ensure proper and efficient operation of the system and occup

References

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    Roomvent, issue 8, pp. 483-486, 2002, Denmark, ISBN 87-989117-0-8

    Full text of the publication

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