Our company provides a full range of services for the implementation of heating systems and systems ventilation: from technical advice and design to delivery, installation and service.
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- Expert advice at any stage of the project
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- Consultation on the interaction of heating, ventilation, air conditioning and heating substations
- Consultation on the use of heating system equipment, combustion and heat pumps, ventilation systems, air conditioning systems, solar collectors -size: 10pt;">Consultation on the payback period of the equipment used
- Systems Automation Consulting
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- < li class="MsoNormal" style="line-height: normal;">Large design department, use of advanced technologies in calculation - short design time
- Highly qualified professionals with years of experience and up-to-date knowledge of technologies and equipment : 10pt;">Heating project: thermal calculation, hydraulic calculation, coordination with the designer, equipment specification
- Ventilation design: air exchange calculation, hydraulic calculation, noise calculation, heat recovery, temperature and humidity maintenance, air distribution calculation, mixing and displacement ventilation
- Air conditioning project: heat input calculation, hydraulic cooling calculation, selection of indoor units by noise and air velocity
- Boiler piping project: chimney calculation, weather-compensated control of circuits, selection of a scheme for connecting underfloor heating, radiators, swimming pools, anti-icing systems, solar collector systems, hot water supply , ventilation
- System Automation
- Free thermal calculation when purchasing equipment
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- BIM creation< /li>
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Heating, ventilation and air conditioning air are three the main tasks that an integrated climate system solves.In order to choose the optimal climate system, it is important to understand how "responsibilities" are correctly "distributed" between the solutions to these problems, and what installations and units are used for heating, ventilation and air conditioning, respectively.
Water and air heating
Heating e, artificial heating of premises during the cold season in order to compensate for heat losses in them and maintain the temperature at a given level that meets the conditions of thermal comfort, and sometimes the requirements of the technological process. Heating is also understood as devices (systems) that perform this function. TSB.
The main two types of heating, as you know, are central water heating, carried out by conventional radiators, and air heating - space heating due to the supply of warm air.
The advantage of air heating is the possibility its combination with ventilation and air conditioning systems, that is, fresh air is supplied, properly purified and of the desired temperature and humidity. To supply warm air in the cold season, the same air ducts are used as for supplying cold air in summer. Due to the fact that air heating, ventilation and air conditioning systems use many common parts, the total cost of the building's climate system is significantly reduced.
The task of air heating is usually solved by supply units with a heating section. Heat in the heating section usually comes from a heat point, that is, from the same central water heating system.
Air heating is referred to as an integrated air conditioning, ventilation and heating system.
Air heating< /h3>
The advantage of air heating is the ability to combine it with ventilation and air conditioning systems, that is, fresh air is supplied, properly purified and at the right temperature and humidity. To supply warm air in the cold season, the same air ducts are used as for supplying cold air in summer. Due to the fact that air heating, ventilation and air conditioning systems use many common parts, the total cost of the building's climate system is significantly reduced.
The task of air heating is usually solved by supply units with a heating section. The heat in the heating section usually comes from a heat point, that is, from the same central water heating system.
Air heating is referred to as an integrated air conditioning, ventilation and heating system.
Water heating< /h3>
It is important to remember that air heating is auxiliary, as its heating power is significantly inferior to basic water heating. That is why, in a properly designed and installed climate system, air heating is used primarily in the off-season, in spring and autumn, and as an additional means of heating in winter. "Alone" the air heating system is not capable of heating buildings in winter - it simply does not have enough power.
The problem of water heating is solved by water radiators, which receive hot water from the central heating system of the building (heating point)
Local heating systems
Local heating and heating systems, such as electric oil heaters, infrared heaters, for industrial premises - electric heat guns, gas and liquid fuel heaters, are used specifically for local heating and are not included into the overall climate system.
Supply and exhaust ventilation
Ventilation (from Latin ventilatio- ventilation), controlled air exchange in the room, as well as devices that create it. Ventilation is designed to provide the necessary cleanliness, temperature, humidity and air movement. These requirements are determined by hygienic standards: the presence of harmful substances in the air (gases, vapors, dust) is limited to maximum permissible (harmless to human health) concentrations, and temperature, humidity and air mobility are set depending on the conditions necessary for the most favorable human well-being. For many industrial premises (shops for assembling precision mechanisms, radio electronics, etc.), air purity, its temperature and humidity are also determined by the characteristics of the technological process. In some cases, the temperature and humidity of the air in the premises must meet the conditions for the best preservation of the objects and materials located in them (museum depositories, archives, warehouses), equipment, and building structures. TSB.
Ventilation is one of the main tasks of the climate system, together with air conditioning. As a rule, mechanical supply and exhaust ventilation is carried out.
Supply ventilation - the supply of purified fresh air of the desired temperature and humidity is carried out by supply units and central air conditioners
Separate exhaust fans are usually installed for exhaust ventilation .
Air exchange rate
If more air is supplied to the room with the help of supply ventilation than is extracted by exhaust ventilation, then excess pressure is created there. If it is the other way around, it is too much. In this case, due to the pressure difference, an air flow occurs from the room with excess pressure to the room with excessive vacuum. This fact can be used to prevent the penetration of air from "dirty" rooms into "clean" ones. In order for the necessary pressure difference to arise, it is necessary to ensure sufficient intensity of air exchange.
An indicator of the intensity of air exchange is the rate of air exchange, that is, the ratio of the volume of air supplied or removed within 1 hour to the internal volume of the room.< p>The more air is polluted in the room, and the higher the requirements for air quality in it, the higher the air exchange rate in the room should be.
Optimal air exchange rates are regulated for different types of premises by Building Norms and Rules (SNiP) .
Exhaust ventilation is carried out mainly from "dirty" premises, that is, those in which the air is polluted more intensively. If we consider an apartment as an example, then such places, obviously, are a toilet, a bathroom and a kitchen.
Inlet ventilation, on the contrary, should be carried out mainly in "clean" rooms. In the apartment, these are living rooms, mainly the inflow should be carried out to the bedroom and the nursery. What the ventilation system provides
A properly designed ventilation system, in this way:
- Ensures the optimal air exchange rate in each room
- Supplies fresh air to "clean " rooms
- Extracts from "dirty" rooms
The balance of supply and exhaust is chosen so as to create a (small) pressure difference that prevents spontaneous ingress of air from "dirty" rooms into "clean"
Air conditioning (from the Latin condicio - condition, condition). The term "air conditioning" is usually understood as the creation and maintenance (mainly automatically) in enclosed spaces and means of transport of the parameters of the air environment (temperature, relative humidity, purity, composition, air speed and air pressure) that are most favorable for people's well-being (comfortable air conditioning). air), conducting technological processes, the operation of equipment and instruments, ensuring the safety of cultural and art values, etc. (technological air conditioning). TSB.
Thus, air conditioning is the creation and maintenance of the parameters of the air
- Relative humidity
- Air purity
- Air mobility
The correct air composition is maintained by ventilation rather than air conditioning. Supply ventilation is responsible for the supply of fresh air, exhaust ventilation - for the extraction of harmful impurities.
If you follow the generally accepted terminology, then air conditioning is the supply of chilled clean air:
For a domestic air conditioner, mixing air in the room, its cooling and cleaning. This task is performed by an air conditioner - a monoblock or a split system.
For "large" air conditioning systems - the supply of a mixture of air from the room and fresh air, cooled and purified. This task is performed by the central air conditioner and / or fan coil units.
The distribution of equipment roles in this case may be different. There are air conditioning systems
on the basis of only central air conditioners, or only on the basis of fan coil units. In the case of joint operation of the central air conditioner and fan coil units, the main load is borne by the central air conditioner, and fine tuning of air parameters is the work of fan coil units.
Distribution of tasks (total)
We emphasize once again that we In this case, we do not pursue the academic accuracy of the wording, but tell how the tasks of heating, ventilation and air conditioning are usually distributed in systems installed in practice. To summarize:
Heating is carried out by air, with the help of supply units. The source of heat for them is hot water from the general heating network of the building.
Ventilation: supply ventilation is carried out by supply units and central air conditioners. Exhaust ventilation - separate exhaust fans.
Air conditioning: central air conditioners and / or fan coil units. The source of cold is cold water from a chiller (refrigeration machine).
Depending on the individual characteristics of the building and the adopted design solution, various variations are possible, such as using a reversible chiller for heating, installing additional electric boilers, providing fresh air with fan coil units channel type, etc. And ventilation is not only supply and exhaust. But these are rather exceptions that only confirm the rule.
The engineer offers a full range of equipment from leading European and domestic manufacturers and provides post-warranty service maintenance of objects.
Heating, ventilation and air conditioning are the three main tasks that an integrated climate system solves. In order to choose the optimal climate system, it is important to understand how the responsibilities are correctly "distributed" between the solutions to these problems, and what installations and units are used for heating, ventilation and air conditioning, respectively.