Abstract
This paper conducted a literature review on the indoor air quality (IAQ) and thermal comfort issues of school classrooms in China. Then a low-energy ventilation system is proposed for school buildings in China's cold climate zone by reviewing several low-energy strategies, such as plants, solar chimneys, earth-to-air heat exchangers (EAHEs), and sunspaces. In this system, EAHEs preheat or precool the ambient air before purifying it with plants in the sunspace. Additionally, the waste air is further exhausted at the system's end. Due to the varying orders and placements of sunspaces and buried pipe settings, the study presents several distinct combinations of low-energy strategies, each of which employs a unique operational principle. The low-energy ventilation system overcomes the limitations of conventional natural ventilation systems and is applicable in a wide range of climates. This system provides clean air and thermal comfort without increasing energy consumption. Future research must examine each combination's energy efficiency in greater depth to guide the practical application of such ventilation systems.
Published Version
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