Ventilated Double Window for the Preheating of the Ventilation Air Comparison of Its Performance in a Northern and a Southern European Climate

<table>Heat gain and temperature of the incoming air in function of the air flow rate for an outdoor air temperature of 0°C.</table>

Journal of Renewable Energy

fig2

Figure 2

Figure 2: Ventilated Double Window for the Preheating of the Ventilation Air Comparison of Its Performance in a Northern and a Southern European Climate 

Figure 2 | Ventilated Double Window for the Preheating of the Ventilation Air Comparison of Its Performance in a Northern and a Southern European Climate 