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Ventilation in an energy - efficient modern house

According to many, living far from the city in the countryside or in separate cottage settlements is the only solution for breathing and enjoying the fresh air. But in fact, it is not so. Modern home, no matter of what materials constructed,has double glazing, wrapped in air - and perosamine are just a sealed bottle. Fresh air in them is minimal, and modern finishing materials, and care products, make the air in the country house the same as in the apartment in the city center.

For a good microclimate in the house you need a constant supply of fresh air at full removal of the polluted. Air without dust, no toxic substances, not less than 20% oxygen, not more than 0.3% carbon dioxide, day temperature 20-24°C, night 18-20°C, relative humidity 50-60%, air circulation 0.1-0.15 m / s.

 Houses are built necessarily with a system of natural, supply and exhaust ventilation. In the bathrooms, bathrooms, kitchen and living space we have vent channels that constantly draw the air, creating a small vacuum. But the flow of air must come necessarily, for this built-in supply valves in the walls, Windows, etc., then it moves in the direction of the exhaust ducts, ventilating the whole house. But here it should be emphasized that good natural ventilation works when the output channel height of at least 10 meters. And then in the winter, at a temperature difference, the air from the house begins to fly with a whistle into the pipe, at the same time tightening there and your budget, designed for heating. And in the summer of another picture, the house receives more heated air, and in extreme heat, the air flow can turn in the opposite direction, convection has not been canceled. There are also problems with the purity of the supply air.

RECUPERATOR

In this article, I confidently recommend everyone to install and use modern ventilation, as if specially invented for energy-efficient home. The principle of action I will tell you how you can simply and clearly. The name of this ventilation is reversible decentralized with heat recovery. It consists of two cylinders made of any durable material, which are placed inside the reverse fans, filters and heat accumulators, the ends are dressed accordingly decorative covers.

Fans like cooling computers that do not have several high-speed modes, that is, low noise, and electricity consumption is comparable to an incandescent bulb of 50 watts. The heat accumulators are different, but generally, ceramic or glass tube. With removable filters everything is clear. Devices are placed in the walls of opposite rooms as high as possible.

Automation works so that the fans are switched on simultaneously, but in different directions and switch synchronously, thereby ensuring constant air exchange in the room. It should be noted that between the rooms it is necessary to have an air connection of at least 1 cm., with closed doors, the air can penetrate through the gap above the floor.

And why do we need heat accumulators-you ask? That's where we came to the highlight of this project.

The air goes out for a few seconds through the first battery, and after the second one comes in, so our flows either cool down or heat up due to receiving or giving heat to the heat exchanger. A striking example in the cold season: on the street -30, in the house + 24. Warm air, leaving through 1 heat exchanger heats it, and after reverse switching the cold air from the street heats up from it and enters the house not-30, but + 10, +15 degrees. At the same time, this process occurs on 2 devices. You just have to adjust the time of switching fans. A similar effect also occurs in the hot season, only now the warm air enters the house cooling, as before that the outgoing flow will cool the heat exchanger.

Sum up:

We got fresh and clean air.
We save 50% of our budget for heating and air conditioning.
So modern energy-efficient house exists and we can not worry about what will have to breathe dirty and harmful air.


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