Comrortableness or Fluctuating Air Flow

MlYAKE Shinji, KAMADA Toyohiko, KUMASHIRO Masaharu

doi:10.7888/juoeh.12.323

Bibliographic Information

Other Title

ゆらぎ風の快適性
―1/fゆらぎのファン回転を持つエアコンの気流の主観的評価―
―Subjective Assessment of the Air Flow of an Air-conditioner with 1/f Fluctuating Fan Speed―

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Description

Fluctuations in which spectral density are inversely proportional to frequency are called 1/f fluctuations. This type of fluctuation has been found in a variety of phenomena. The 1/f fluctuations are presumed to be comfortable because music and other comfortable phenomena have this type of fluctuation. The purpose of this study is to examine the comfortableness of the fluctuating air flow of an air-conditioner which fan speed was controlled by the 1/f fluctuation. 157 subjects (75 males and 82 females) participated in this experiment and half of them wore ear plugs to investigate the effect of the fan noise. Two types of fluctuating air flow of an air-conditioner (wide range fluctuation and narrow range fluctuation) and laminar air flow were evaluated by the rank order test, the open-ended method and the semantic differential method. Our results indicated that wide range fluctuating air flow was most uncomfortable because of its fluctuating fan noise. The comfortableness of the narrow range fluctuating air flow and the constant one are almost equal. Moreover, factors which affect the subjective comfortableness are discussed.

Journal

Journal of UOEH

Journal of UOEH 12 (3), 323-333, 1990

University of Occupational and Environmental Health, Japan

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Details 詳細情報について

CRID: 1390282680060301184

NII Article ID: 110001260393

DOI: 10.7888/juoeh.12.323

ISSN: 21872864; 0387821X

Web Site: https://www.jstage.jst.go.jp/article/juoeh/12/3/12_KJ00002505314/_pdf; https://search.jamas.or.jp/link/ui/1991165513

Text Lang: en

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