Abstract
In this study, fundamental research was conducted on the development of an adsorption-desorption ventilation system incorporating thermoelectric elements to improve indoor air quality (IAQ) and energy efficiency. The experiment was conducted using a thermoelectric module and silica gel as a commonly used adsorbent to evaluate the cooling and heating effects during the adsorption and desorption process. The main experimental results show that applying 3W power to the thermoelectric module reduces the outlet air temperature and improves the adsorption efficiency, while excessive power (4-5W) reduces the adsorption efficiency due to increased heat load. Additionally, when the flow rate on the adsorption side is increased, the completion time decreases. On the other hand, if the flow rate on the desorption side is increased, the completion time is also shortened. It was confirmed that as the flow rate increases, the movement of heat and moisture generated during the adsorption and desorption process becomes faster, and the reaction progresses more quickly.