A Study on the Evaluation of Ventilation System for IAQ

摘要

Reinforcement of air-tightness and thermal insulation in the indoors leads to the decline in air-change rate. Moreover, due to increased chemical substances on furniture, the indoor air-quality becomes worse and may induce various health problems, namely the condition known as the Sick Building Syndrome(SBS).Many tools and methods are being developed to improve indoor air-quality. In this paper, we suggest a ventilation system with an air-cleaning and heat-recovery unit in which the performance of the ventilation system was analyzed through a field study. In the field study, the effects of the ventilation system on indoor air-quality under various conditions were measured and examined. As demonstrated in the field study, the ventilation-only mode or ventilation with air-cleaning mode in various settings proved the system to be effective in each case in terms of indoor air-quality and energy efficiency.