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Russian scientists in Saratov have developed a device for ventilation of premises, which will reduce heating costs. This was reported to TASS by the press service of the Saratov State Technical University (SSTU) named after Yu.A. Gagarin.

“In order to reduce energy costs for space heating in the winter season, it is important to transfer the heat contained in the exhaust air to the supply air flow. Therefore, we have developed a special device for exchanging heat and moisture between two air flows, which allows us to minimize energy costs for temperature adjustment of the in-coming air flow supplied to the room,” the developers say.

As noted at SSTU, thanks to the device it is possible to completely eliminate consumer payments for heating. This applies, for example, to rooms with thermally insulated walls, a sufficient number of lamps and other heat sources. In this case, payments will only be received for electricity.

The device can be used in residential buildings, administrative and industrial premises. If widely used, the development can become a replacement for existing centralized heating systems and networks.

Ventilation of habitable premises is necessary according to sanitary and hygienic requirements. The main standardized parameters are temperature, moisture content, and air speed. The scientists' development is unique in that it allows you to regulate the air parameters in a ventilated room.

The device consists of compartments with heat exchange sections and moisture transmitters. Regardless of the outside air temperature, the device operates without ice forming on the heat transfer surface. Moisture does not have time to accumulate and freeze, since it is collected from the exhaust air flow and transferred to the supply air flow after each heat exchange section.

Along with the exchange of heat, moisture is also exchanged between the exhaust and supply air flows through the use of capillary-porous moisture pipes. As a result, the air does not dry out, which accompanies the operation of currently used supply and exhaust ventilation systems.

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Photo: © Anton Vergun/TASS