Mixed-Mode Ventilation in HVAC System for Energy and Economic Benefits in Residential Buildings

In the U.S., approximately 47% of total electricity use comes from residential buildings. Most buildings HVAC system to ventilate, cool, or heat indoor environmental spaces mechanically, rather than using natural outdoor air in transition seasons, even though conditions are favorable for thermal comfort. this case, an mixed-mode ventilation with appropriate ratio and could decrease energy This research uses high-granular data thermostat weather Austin, Texas, evaluate benefits economics when spring fall seasons. The results demonstrate that household owners save 150.79 kWh 24.41% cost months (April/May), similarly, 143.86 27.2% savings (October/November). support further study automatically operated windows reduce toward sustainable development.