Choosing a ventilation system for the garage

In order for the car to be in good condition, it is necessary to ensure not only correct operation, but also its proper storage. This is especially true in climatic zones of high humidity and zones of subzero temperatures in winter. High humidity, aggressive reagents used against road surface icing are the main cause of corrosion of metal parts of a car.

Naturally, storing your car outdoors is not the best way to keep your car. Therefore, most car enthusiasts build garages. There are two types of garages: heated and unheated. Heating is performed in those garages where it is possible to obtain cheap heat. If this is not possible, build a "cold" garage.

Why ventilation is needed

After driving in the rain or in winter during snowfalls, the car brings a lot of moisture and snow into the garage, which increases the humidity in the room. When the engine is started, a large amount of harmful and aggressive substances are emitted into the air together with the exhaust gases. Such a "cocktail" immediately begins its destructive work. In order to eliminate these factors, supply and exhaust ventilation is performed. Ventilation provides air exchange in the garage, inflow of outside air, removes water vapor and toxic fumes, exhaust gases.

Possible system options

In most cases, the following ventilation systems are used: natural, forced, combined (mixed). The simplest is the natural ventilation system. The draft is created due to the difference in the heights of the supply and exhaust openings, it works like an ordinary stove. A continuous air flow is created from the intake to the exhaust. The creation of such a system requires minimal costs.

The most effective system is considered to be a forced ventilation system. It provides for incentive air exchange devices - fans. The system effectively provides the calculated air exchange rate, which depends on the performance of the supply and exhaust fans. The forced system, as a rule, has a system of air ducts that provide air intake from the most dangerous areas of the room. Supply fans take in outside air, which passes through the air heater in winter and heats up. Since this system has equipment, air ducts, it requires large, in comparison with other ventilation systems, costs.

The combined system provides a natural flow of air into the room and its forced removal. Fans and air ducts provide exhaust only. The combined system is the most common type of garage ventilation system.

Natural ventilation system

The hole for the air inlet is made as close as possible to the planning mark of the earth, focusing on the "wind rose". The hole can be rectangular or circular. The inlet is equipped with a louvered grill, which allows you to regulate the air flow into the room. An inlet pipe can be made of two pipe sections and a branch pipe, which is equipped with an umbrella for protection from precipitation. One or more exhaust openings are made in the ceiling and roof. The upper cut of the chimneys is led out above the roof ridge. The pipes are protected from precipitation by umbrellas.The most effective measure is the installation of deflectors. The natural ventilation system works effectively if the ratio of the areas of the inlet and outlet openings is observed. To ensure normal air exchange, it is necessary to provide an exhaust opening with an area of ​​1.8 cm. Sq. per cubic meter of ventilated volume. The area of ​​the inlet, per one cubic meter of volume, is taken as 5.4 cm. Sq. It is very easy to determine the areas of the inlet and outlet openings. For example, for a garage with a volume of 100 m3: exhaust opening 1.8x100 = 180 cm. Sq., Inlet opening = 5.4x100 = 540 cm. Sq.

Combined ventilation system

The inlet for the combined ventilation system is calculated in the same way as for natural ventilation. The hood is made forced, for which an exhaust fan is installed. As a rule, such a system is switched on periodically, especially in winter. If it works constantly, it will be very cold in the room due to the constant increased flow of cold outside air.

Mechanical (forced) ventilation

Forced ventilation systems have supply and exhaust fans. Fresh air passes a mechanical impurity filter and is heated in winter by an electric heater or a heater connected to the heating system. Forced ventilation systems are used in garages with large volumes of premises, as well as in heated garages. The ventilation system justifies its creation by extending the life of the car and providing safe comfortable conditions for a person.