Evaluating the cooling capacity of diffuse ceiling ventilation systems for different ratios of perforated area

Parastoo Sadeghian*, Samira Rahnama, Peter Vilhelm Nielsen, Alireza Afshari, Sasan Sadrizadeh

*Corresponding author

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Diffuse ceiling ventilation system is an air distribution system, in which the outdoor air is supplied to the occupied room through the perforated panels installed in the ceiling. This method has been proven to have a higher cooling capacity compared to the conventional air distribution systems. This study is a part of an ongoing project consists of two phases. In the first phase, the project aimed to experimentally investigate the dependence of the cooling capacity on the location of heat sources in the room and the distribution of diffusive supply areas in the ceiling. The experimental study was carried out in order to calibrate the model of the test room with the perforated panels cover the entire ceiling. The second phase of the project numerically studied the cooling capacity of the system in several scenarios with different ratios of perforated to non-perforated panels in the ceiling, with even distribution of the heat sources. The obtained results showed that decreasing the area of the perforated panels can improve the cooling capacity of the diffuse ceiling system.
Original languageEnglish
Title of host publication16th Conference of the International Society of Indoor Air Quality & Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020 : Proceeding book
Number of pages6
PublisherInternational Society of Indoor Air Quality and Climate
Publication dateNov 2020
Article numberABS-0113
ISBN (Print)978-171382360-5
Publication statusPublished - Nov 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: 1 Nov 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
Period01/11/2020 → …

Keywords

  • Diffuse ceiling ventilation
  • cooling capacity
  • airflow behavior

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