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Experimental Evaluation of the Ventilation Effectiveness of Corner Stratum Ventilation in an Office Environment

Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, 801 76 Gävle, Sweden
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Buildings 2019, 9(7), 169; https://doi.org/10.3390/buildings9070169
Received: 20 June 2019 / Revised: 3 July 2019 / Accepted: 11 July 2019 / Published: 14 July 2019
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Abstract

An experimental study was conducted in a room resembling an office in a laboratory environment. The study involved investigating the ability of corner-placed stratum ventilation in order to evaluate the ventilation’s effectiveness and local thermal comfort. At fixed positions, the air temperature, air velocity, turbulence intensity, and tracer gas decay measurements were carried out. The results show that corner-placed stratum ventilation behaves very similar to a mixing ventilation system when considering air change effectiveness. The performance of the system was better at lower supply air flow rates for heat removal effectiveness. For the heating cases, the draught rates were all very low, with the maximum measured value of 12%. However, for the cooling cases, the maximum draught rate was 20% and occurred at ankle level in the middle of the room. View Full-Text
Keywords: air change effectiveness; air exchange efficiency; ventilation effectiveness; draught rate; temperature effectiveness air change effectiveness; air exchange efficiency; ventilation effectiveness; draught rate; temperature effectiveness
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Ameen, A.; Choonya, G.; Cehlin, M. Experimental Evaluation of the Ventilation Effectiveness of Corner Stratum Ventilation in an Office Environment. Buildings 2019, 9, 169.

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