Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The effects of indoor living walls on occupant thermal comfort in office buildings
Indoor living walls, consisting of plants grown on substrates using fabric layers or pre-vegetated panels, offer passive cooling and enhance occupants’ comfort through evapotranspiration. Despite their potential benefits, few studies quantify their impact on occupant satisfaction and thermal comfort. This study focused on a hydroponic indoor living wall with a 25% leaf-to-floor area ratio across room temperatures ranging from 23.0 to 27.0 °C (73.4–80.6 °F). Comparing spaces with and without living walls, surveys revealed improved thermal comfort with living wall systems. On average, thermal sensation votes (TSV) were up to 0.70 points lower at 24.5 °C with living walls, equivalent to a 2.2 °C (4.0 °F) temperature reduction. Additionally, 15% fewer participants preferred a cooler environment with living walls present. Gender-based TSV differences decreased by 0.29–0.78 points, indicating occupants’ ability to adapt to higher temperatures. The study suggests that with indoor living walls, cooling setpoints can be increased by 0.7 °C (1.3 °F) and 0.9 °C (1.6 °F) for 90 and 80% thermally acceptable ranges, respectively, resulting in potential HVAC energy savings of 7.07–8.48% for medium-sized offices. Integrating indoor living walls in office buildings could significantly reduce energy usage, enhancing energy efficiency and sustainability.
The effects of indoor living walls on occupant thermal comfort in office buildings
Indoor living walls, consisting of plants grown on substrates using fabric layers or pre-vegetated panels, offer passive cooling and enhance occupants’ comfort through evapotranspiration. Despite their potential benefits, few studies quantify their impact on occupant satisfaction and thermal comfort. This study focused on a hydroponic indoor living wall with a 25% leaf-to-floor area ratio across room temperatures ranging from 23.0 to 27.0 °C (73.4–80.6 °F). Comparing spaces with and without living walls, surveys revealed improved thermal comfort with living wall systems. On average, thermal sensation votes (TSV) were up to 0.70 points lower at 24.5 °C with living walls, equivalent to a 2.2 °C (4.0 °F) temperature reduction. Additionally, 15% fewer participants preferred a cooler environment with living walls present. Gender-based TSV differences decreased by 0.29–0.78 points, indicating occupants’ ability to adapt to higher temperatures. The study suggests that with indoor living walls, cooling setpoints can be increased by 0.7 °C (1.3 °F) and 0.9 °C (1.6 °F) for 90 and 80% thermally acceptable ranges, respectively, resulting in potential HVAC energy savings of 7.07–8.48% for medium-sized offices. Integrating indoor living walls in office buildings could significantly reduce energy usage, enhancing energy efficiency and sustainability.
The effects of indoor living walls on occupant thermal comfort in office buildings
Iddio, Emmanuel (Autor:in) / Wang, Liping (Autor:in) / Zhang, Hui (Autor:in) / Wong, Nyuk Hien (Autor:in)
Science and Technology for the Built Environment ; 31 ; 398-414
21.04.2025
17 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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