international. Exchangers with counterflow plates make better use of the heat and moisture of the air being expelled, Sudeica said.
Heat recovery systems are ventilation systems that allow the air in buildings to be renewed, and in the same process they also condition it, transferring the temperature of the indoor air they expel to the fresh air they supply. This contributes to energy savings, because dependence on heating and cooling systems is reduced.
Thus, recuperators are effective in achieving energy efficiency and optimal indoor air quality. Sodeca offers models that adapt to different needs, such as AirHome, specially designed for homes, and more powerful models for larger and more crowded buildings, such as RECUP/EC-BS and RECUP/EC-H.
The main element in heat recovery devices is the exchanger. There are three types depending on the way air flows through this component. They can be rotary exchangers, with cross-flow plates or with counter-flow plates. Of these three options, the one that provides the highest thermal efficiency is the last, with an efficiency of up to 90%. A counterflow plate system is the system that best utilizes and transfers energy, heat or cold, from the air extracted from the inside to the fresh air that enters from the outside.
Sodeca manufactures heat recovery units for both homes and large service buildings that incorporate this type of exchanger, which contributes to increased energy savings.
The installation of ventilation systems incorporating heat recovery is mandatory according to the Regulation for Thermal Installations in Buildings (RITE) when the outdoor air flow rate of 1,008 m³ per hour is exceeded. In this sense, it is useful to take into account that Certificates of Energy Savings (CAE) contribute to significantly reducing the implementation cost.
These certificates, which can be more easily obtained through the Standardized Energy Efficiency Paper Catalog, allow the installation of dual-flow ventilation systems with heat recovery to be more economical by simplifying the verification of energy savings. This Sodeca article details what it consists of and how to obtain it.
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