Energy Recovery Based Façade Ventilation Systems

Energy Recovery Based Façade Ventilation Systems

Energy Exchange

Home energy efficiency
Home energy efficiency

Energy recovery ventilation is the process of exchanging the energy contained in normally exhausted building or space air and using it to treat, or "precondition" the incoming outdoor ventilation air in residential and commercial heating, ventilating and air conditioning (HVAC) systems. During the warmer seasons, the system pre-cools and dehumidifies while humidifying and pre-heating in the cooler seasons.

The benefit of using energy recovery is the ability to meet the ASHRAE ventilation and energy standards, while improving indoor air quality and reducing total HVAC equipment capacity.

This technology not only demonstrates an effective means of reducing energy cost and heating and cooling loads, but has allowed for the scaling down of equipment. Additionally, this system will allow for the indoor environment to maintain a relative humidity of 40% to 50%. This range can be maintained under essentially all conditions. The only energy penalty is the power needed for the blower to overcome the pressure drop in the system.