While comfort ventilation alone benefits indoor air quality, the inclusion of energy recovery takes it a step further. Energy recovery systems ensure that the ventilation process is not only efficient in terms of air exchange but also in terms of energy consumption.
The demand for cooling buildings is growing with increased urbanization, climate change, and rising comfort expectations. Extreme heat events are becoming more frequent, posing challenges for maintaining safe and comfortable indoor environments.
Comfort ventilation works by exchanging indoor air with fresh outdoor air. The incoming air is filtered, removing particles and pollutants, ensuring a cleaner and healthier living environment. By removing excess moisture, comfort ventilation systems help prevent mold and mildew growth, which can harm both our health and the integrity of our homes or offices.
By recovering the energy from the outgoing air, energy recovery systems can significantly reduce energy costs. This is especially important in climates with extreme temperatures, where heating or cooling accounts for a significant portion of energy consumption. Comfort ventilation with energy recovery, allows you to enjoy a more sustainable and greener lifestyle while saving money on your energy bills.
Energy recovery systems utilize various technologies to transfer energy from the outgoing air to the incoming fresh air. Air-to-air heat exchangers are common components in AHUs for comfort ventilation. The heat exchanger transfers heat from the warm air leaving the building to the cooler air entering, ensuring the incoming air is pre-conditioned to a more desirable temperature.
There are two types of exchangers: rotor and plate heat exchangers. Plate heat exchangers are perfect for closed-loop systems where you do not want the incoming and outgoing airflows to mix. Rotors can transfer humidity (Enthalpy) and are particularly useful in climates with high humidity levels, where maintaining a comfortable indoor environment can be challenging.
If you want to know more about indoor air quality, we recommend visiting the Indoor Air Hygiene Institute. It’s the only organization dedicated solely to indoor air quality and its certification. The Institute aims to improve human health and productivity within indoor spaces through excellence in indoor air ventilation, filtration, and purification standards.
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