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If you constantly feel stuffy in the room, mold has begun to appear on the walls, and the windows are constantly fogging up – these are sure signs that there are serious ventilation problems in the apartment or office. The air stagnates, mixes with carbon dioxide, which is released by our respiratory system. A radical way to solve the problem is to open the window wide. But this is not comfortable: who needs a chilling draft, the rumble of the road and dust?
Supply ventilation is designed to solve these problems. The commercial director of Admiral Engineering Group LLC Konstantin Okunev will help to understand the issue. ” Healthy Food Near Me” tells what supply ventilation is, how it works, the nuances of choosing and installing the system.
What is forced ventilation
Supply ventilation is a system that brings fresh air into the premises. From this, an excess of pressure is created, displacing the exhaust air through leaks or openings into adjacent rooms or out.
“People have been studying the composition of air for a long time. In the course of history, it was noticed that if a person stays in rooms with insufficient air exchange for a long time, he starts to get sick. In the XNUMXth century, an intensive fight against carbon monoxide started. After all, stoves and fireplaces were used for heating. It was important to remove not only the smoke, but also the invisible carbon monoxide. For example, the English monarch Charles I, who was living at that time, issued a decree banning the construction of residential buildings with ceilings less than three meters. The increase in the volume of the room gave a significant decrease in the concentration of the combustion product, – gives a historical excursion on ventilation Konstantin Okunev.
Let’s go back to our days. Engineers and builders have long developed ventilation systems that take into account all the characteristics of the room. Designing ventilation systems is taught at architectural and construction faculties. However, despite all the progress made, the situation remains deplorable. The Healthy Food Near Me expert explains that the conflict between the Soviet building heritage and … plastic windows is to blame!
Previously, standards were applied that took into account the intake of air through leaky windows and the removal of exhaust air, along with dust and odors, through a natural exhaust system. It usually looks like grilles under the ceiling with visible dust particles from the exhaust air. Due to the plastic windows, air removal is complicated. This is especially true in the summer. The temperature difference between inside and outside is zero, there is no pressure difference, which means that the air is standing still,” the expert explains.
The problem will be solved by the competent organization of supply ventilation. It will provide air support, roughly speaking – pressure on it so that it circulates. A good example for understanding the term “air pressure” is a kitchen hood. Its work is much more efficient when air is supplied through the supply system than through a filter.
How ventilation works
The main element of the air handling unit is the fan. The speed of circulation and air supply to the room depends on its power. It works loudly, so when installing the system, soundproof materials are used. In any supply ventilation there are filters that try to contain harmful small particles that can be pulled in from the street: from fluff and wool to the smallest pollen and exhaust gases.
A heating element is installed in the system, through which icy air passes during the cold season. The element can be electric or water. The latter are placed in supply ventilation for large areas, while in apartments it is more comfortable to use electric.
The next important element for understanding the principle of operation of supply ventilation is the heat exchanger. It looks like an elongated tube through which air is taken from the street, and the exhaust is thrown out. At the same time, the air from the room gives up its heat to new air currents. It turns out an energy efficient system to reduce the consumption of electricity for the heating element.
If the fan is the heart of the supply ventilation, then the air ducts are the vessels. These are pipes through which air moves. Sometimes they are very reminiscent of those through which rainwater drains from the roof of the house. When planning a system, specialists decide what is more cost-effective to install pipes: they are made of steel alloys or plastic, they can be flexible and hard.
Without electronics today nowhere. Therefore, an automatic control system is installed in the most modern supply ventilation systems. It consists of a temperature sensor, a fan speed controller and a filter clogging controller. The output is a smart system that regulates the process of air supply itself and signals the user that it is time to clean or replace the filters.
To make supply ventilation even more comfortable, engineers can design a dehumidifier, humidifier, and even an air decontaminator into the system.
Which supply ventilation to choose
Compact or central
We talked about how ventilation works. But they did not specify an important point for explaining the form of this system. Supply ventilation can be central and “household”. In the first case, we are talking about a global system.
More often it is hidden behind a false ceiling, but sometimes it is shown in the interior, if we are talking about the loft style. You have probably seen the branching pipe system under the ceiling in new restaurants, art spaces and other trendy places. This is the central supply ventilation.
This is an expensive system. You need to pay not only for its assembly and installation, but also for design. As a result, the check comes out with an amount with five zeros. Engineers are laying a system of filters and heaters inside. Collecting this is best for specialists. With a strong desire, central ventilation can be installed in an apartment or house, but only if the living area has sufficient dimensions. However, the expense will not always be justified.
Supply ventilation for apartments consists of modern household solutions. They are also successfully used in cottages, private homes and small offices.
Varieties of compact supply ventilation
window valve. The most budgetary (about 1000 rubles) and the least effective option. A solution for a room in which there is often only one person. It may be a filter for large contaminants.
Wall supply valve. May or may not have a fan. Prices vary depending on the complexity of the device: on average, from 2000 to 10 rubles. Often it is installed under the windowsill in the area of u000buXNUMXbthe heating radiator. To warm up the air from the street before entering the room. More efficient than windows.
Breezer. The latest technology in terms of domestic supply ventilation. Kind of like an air conditioner. Only his task is not to cool or heat the air, but to create its circulation. At the same time, he knows how to clean the street air and heat it. The device is wall mounted. For most models, there are control panels that allow you to set different ventilation scenarios and program the operation of the device. Prices from 20 to 000 rubles.
Supply air duct
There are two types. The first is called channel. The name reveals the essence: air passes through a system of channels and pipes to be in the room. The second is called channelless. In this case, the duct is an opening in a wall or window.
Circulation method
To choose supply ventilation, it is worth deciding how it will drive the air. In a natural way, it means that the system will not have any mechanical assistants. In fact, this is a hole in the wall with a grate through which air from the street will enter. If the system is installed and designed correctly, sufficient air will enter. Supply ventilation will work by itself.
There are systems with forced circulation. A fan is turned on, which builds pressure and draws air into the room.