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Balancing indoor comfort with ventilation is challenging in detached houses. This study conducted a sensitivity analysis between thermal insulation (Ua) and airtightness (C). The results show that an air exchange rate of 30 m3/h per person keeps indoor CO2 concentration below 1000 ppm, which indicates good air exchange. This study also found that the cooling system in summer primarily accounts for energy consumption to maintain a comfortable indoor environment.

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Airflow Heat and CO2 Balance in Detached Houses: A Simulation Based on Insulation Leakage, Ventilation, and Occupancy of an Indoor Environment

  • 章节

  • 发表日期：

    2025年

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  • Yanghui Guo,
  • Andante Hadi Pandyaswargo,
  • Hiroshi Onoda

摘要

Balancing indoor comfort with ventilation is challenging in detached houses. This study conducted a sensitivity analysis between thermal insulation (Ua) and airtightness (C). The results show that an air exchange rate of 30 m3/h per person keeps indoor CO2 concentration below 1000 ppm, which indicates good air exchange. This study also found that the cooling system in summer primarily accounts for energy consumption to maintain a comfortable indoor environment.