Experimental study on floor-supply displacement ventilation system under various heat load conditions

Junta Nakano, Takashi Akimoto, Shin Ichi Tanabe, Ken Ichi Kimura

研究成果: Conference article査読


The thermal performance of a floor-supply displacement ventilation system was evaluated in a large climate chamber designed to simulate a single span of an office building. Detailed measurements were made to investigate the indoor environment and thermal characteristics of this system. The temperature gradient in the room could be kept smaller by the cooling effect of an air-permeable floor. Lowering the height of heat sources, increasing the heat load, and decreasing the supply air volume all caused greater vertical temperature differences in the occupied zone. The temperature gradient was kept nearly constant throughout the room, though a temperature rise of 0.3°C - 0.5°C (0.5°F - 0.9°F) was observed near the heat source when clustered at one location. Perimeter load caused by warm or cold windows resulted in a disorder of the thermal stratification. Thermal comfort in the perimeter zone was considerably influenced by the radiation from the window.

ジャーナルIAQ Conference
出版ステータスPublished - 1997
イベントConference on Design, Construction, and Operation of Healthy Buildings: Solutions to Global and Regional Concerns, IAQ 1997 - Washington, DC, United States
継続期間: 2007 9月 12007 9月 1

ASJC Scopus subject areas

  • 建築および建設
  • 環境工学
  • 公衆衛生学、環境および労働衛生


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