Study on environment conscious technologies at a super tall building: Basic examination of dynamic draft skin system by steady CFD analysis

Toshiyuki Matsushita, Takashi Akimoto, Ryosuke Inomata, Daisuke Hatori, Shigeaki Takanishi, Shunsuke Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this report, we focused on the updraft caused by hot air that may occur in the double skin cavity introduced as a load reduction policy, and examined the possibility of Dynamic Draft Skin System (DDSS) a natural ventilation system that attracts high-rise clean outside air to lower layers. We examined the introduction of DDSS for a super tall building scheduled for completion in Japan using computational fluid dynamics (CFD) analysis; nine cases were examined by changing the cross-sectional area of the circulation ducts (CD), opening areas of the double skin, and increasing the number of CDs. From the results, at maximum solar radiation, there was high-temperature air (approximately 50°C) in the upper part of the double skin, and the effect of attracting outside air by the updraft was confirmed.

Original languageEnglish
Title of host publication16th Conference of the International Society of Indoor Air Quality and Climate
Subtitle of host publicationCreative and Smart Solutions for Better Built Environments, Indoor Air 2020
PublisherInternational Society of Indoor Air Quality and Climate
ISBN (Electronic)9781713823605
Publication statusPublished - 2020
Event16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020 - Virtual, Online
Duration: 2020 Nov 1 → …

Publication series

Name16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020

Conference

Conference16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020
CityVirtual, Online
Period20/11/1 → …

Keywords

  • CFD analysis
  • Double skin
  • Natural ventilation
  • Negative pressure
  • Super tall building

ASJC Scopus subject areas

  • Building and Construction
  • Computer Science Applications
  • Health, Toxicology and Mutagenesis
  • Pollution

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