Effect of efficient supply of pure O2 concentrated by PSA-type O2 separator on improvement of indoor air quality

To minimize the cost and loss rate of energy artificial room ventilation system, the O-2 separator was suggested for the flow of the excessive ventilation amount between indoor and outdoor because the pure O-2 separated and concentrated by the O-2 separator can be supplied with the ventilation amount minimized. How the O-2 separator applies to ventilation and its operation characteristics were investigated by controlling under various conditions as well as the operation conditions optimized required for indoor air quality such as the concentration of CO2 and O-2. Consequently, it was known that the O-2 concentration was increased; however, the increase of the CO2 concentration was suppressed by the sufficient supply of O-2 concentrated from the storage tank into the room despite the two persons' breathing in the room having an inner volume of about 56 m(3). Consequently, it was concluded that the supply system of the concentrated O-2 which was stored into the tank after the production with the O-2 separator can be applied to the room ventilation system for the improvement of the indoor air quality.