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As contemporary workspaces evolve to prioritize well-being and environmental responsibility, therefore traditional Mixed Ventilation (MV) strategies are challenged by a broader architectural trend toward sustainability and resilience in a Swedish landscape office environment. This study compares Displacement Ventilation (DV) with MV strategies in a landscape office with multiple design objectives, focusing on thermal comfort, indoor air quality (IAQ), energy performance, and carbon footprint associated with mechanical ventilation system design. By employing both detailed ventilation system design with Magi-CAD, air stratification evaluation using IDA-ICE 5 software, and environmental impact calculation using One Click LCA. The results reveal that DV improves approximately 10% energy efficiency and IAQ in offices but with the cost of a small thermal comfort trade-off, and DV’s operational energy savings outweigh a higher initial embodied carbon reflecting advantageous for sustainable workspace design. This comparative analysis offers valuable multi-dimensional insights for optimizing workspace comfort and efficiency in Swedish landscape office environments.

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Long-Term Sustainability Comparison Between Displacement Ventilation and Mixed Ventilation in Swedish Landscape Offices via Multi-objective Analysis

  • 会议论文

  • 发表日期：

    2026年

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  • Samir Akhras,
  • Jingchun Shen

摘要

As contemporary workspaces evolve to prioritize well-being and environmental responsibility, therefore traditional Mixed Ventilation (MV) strategies are challenged by a broader architectural trend toward sustainability and resilience in a Swedish landscape office environment. This study compares Displacement Ventilation (DV) with MV strategies in a landscape office with multiple design objectives, focusing on thermal comfort, indoor air quality (IAQ), energy performance, and carbon footprint associated with mechanical ventilation system design. By employing both detailed ventilation system design with Magi-CAD, air stratification evaluation using IDA-ICE 5 software, and environmental impact calculation using One Click LCA. The results reveal that DV improves approximately 10% energy efficiency and IAQ in offices but with the cost of a small thermal comfort trade-off, and DV’s operational energy savings outweigh a higher initial embodied carbon reflecting advantageous for sustainable workspace design. This comparative analysis offers valuable multi-dimensional insights for optimizing workspace comfort and efficiency in Swedish landscape office environments.