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Ventilation

Under the term ventilation we understand a complex system, which is in the area and takes care of air exchange, cooling, heating, humidification, dehumidification and more. Ventilation significantly contributes to healthy living and enjoyable stay anywhere. Its aim is to achieve air exchange, which would be both ecological and economic and hygienic. Non-use of air conditioning can lead to unpleasant problems with mould and moisture.

Ventilation is always delivered on order. Bluetherm s.r.o.company provides design, supply and installation of the entire ventilation system, including service.This allows sufficient air exchange in the required areas. Our services can be used both in flats and houses as well as offices, swimming pools or dusty areas.

TYPES OF VENTILATION

Ventilation is divided into several types, which can be combined together in various ways. In all types it is also possible to edit the air according to customer needs.

CENTRAL VENTILATION

They are suitable for buildings with steady heat loss or heat gain and production of harmful substances of air conditioner, moreover, it is a silent system with comfortable operation. Central ventilation can be of two types, while in one case, the condenser and compressor are located together and evaporator is located separately in an outdoor environment, in the second case they are placed together as a condenser and the compressor and the evaporator. In the old central air conditioning it is possible to replace the old compressor with a modern compressor with high efficiency. When thinking of purchase a central air conditioning , pipes schema and space play the key role.

VENTILATION

The reason for an implementation of the ventilation system is to supply the room with fresh air and to get exhaust air outside. The aim is air exchange, for ensuring comfort there are other systems such as hot air heating. Ventilation is needed in residential and industrial buildings, agricultural buildings, technological premises or means of transport. When designing such a system it is necessary to consider the outdoor air flow and the volume of the space. Ventilation is characterized by intensive air exchange. Bluetherm s.r.o.company also provides service work.

HOT-AIR HEATING

The previously mentioned air heating is used for heating the air in the space to the desired temperature by intake of warm air which is heated by e.g. a heat pump (air-air) or electrical heater. This is one of the possibilities of air heating without which the ventilation systems often cannot do. It is used especially in winter seasons. A significant advantage of air heating compared to hot water heating system is its immediate effectiveness - immediate heating. This is a further air treatment in addition to heating, mixing, humidification and dehumidification. Air treatment is typical not only for ventilation but also for conditioning.

A heat pump is a device which pumps heat from one place to another, usually from a colder to a warmer place. The most common type is the heat pump compressor. Currently the most common heat pumps are ground-air and air-air.

Humidification and dehumidification

The humidification systems take care of air humidification. Their objective is to regulate the indoor climate of the area and thus create a healthier environment for the people inside. The humidification is used not only for a positive impact on humans but mainly for creating an ideal climate for technological processes. Humidification systems maintain constant level of humidity of materials, such as paper or wood. They are important in food processing as well. In practice you can find these systems in textile, food, tobacco and automotive industries and also in offices, hospitals, museums, computer rooms, and more. Humidification is needed most in winter months.

In contrast by the dehumidification or drying we understand lowering humidity. Moisture is undesirable in confined areas and leads to the formation of mould , rot and corrosion. Dehumidification removes moisture in walls, the materials used in the construction of the space and loose materials. Thick walls and insulated windows do not prevent from humidity in enclosed areas. Bathroom or laundry room is the biggest source of moisture.

During dehumidification of the space it is required to close the space properly. Otherwise there would be ineffective dehumidification of outdoor air. Currently, dehumidification is carried out in two ways. It is an air-cooling or dehumidification adsorption.

FILTRATION

Another important part of the ventilation system is filtration. Filters can be a direct part of the ventilation system or may be piped additionally. The aim of filtration is air cleaning which contains a certain amount of impurities, contaminants etc. Nowadays we perform not only filtering of air coming into the space but also of air which is exhausted from the space mainly for environmental reasons. Filtration includes process of separation of pollutants and its assembly and disposal.

The type and class of the filter is selected according to the requirements for the supply of air, it is also possible to use several types and classes of filtration consecutively. The general objective of filtration is reduction of concentration of harmful substances in the air below the value given by the hygienic and technological requirements.

SUCTION

Exhaust systems are used to capture harmful substances already in their place of origin, which has several advantages. Besides avoiding the spread of substances into the air it is more economical than the suction ventilation. The flow of exhausted air is always lower than during ventilation which then reduces the energy consumption for heating of air which is introduced into the space from outside. These systems are used for dust extraction of plants.

By sucking dust of plants we understand areas with excessive dustiness. Both large and small spaces. Among professions with high dustiness are those which involve drilling, milling, grinding, cutting etc. In these areas it is necessary to use a suction device either firmly built into the ventilation system or mobile in the form of a mobile device.

The main components of exhaust systems include extension, suction piping network, filter, blower and exhaust pipes. It is necessary that the exhaust meets the essential requirements, not only in terms of emissions. Substances should be recorded immediately after their formation, the exhaust system must be supplemented with a fan and meet the requirements of fire protection and others.

Exhaust systems are divided into several types:

Central suction system: sucks from multiple sources of the same or similar nature, wherein the network uses a common suction net.

Group suction system: exhaustion of certain sources. Emphasis is placed on preventing from mixing of substances that could in extreme cases lead to an explosion.

Divided suction systems: Several fans connected to a single technological process.

Unit extractors: filtered air is fed back into the space, it is not necessary to heat the outside air. It is the most cost-effective solution.

RECOVERY

Recovery is the process of heat recovering . This method of heating the air is not only simple, but also the cheapest. It is used because the energy that would otherwise be released from the space outside. Heat recovery efficiency by recuperation device varies between 30% and 90%, while it depends on the unit size, air flow and the heat recovery exchanger type. Recuperation heat exchangers are most often built right into the ventilation system, and thus can be used in recovery of houses, apartments, swimming pools and industrial areas. Recovery is also used in summer in air-conditioned areas where there is a cold recovery.

VENTILATION APPLICATIONS

Design, supply and installation of air conditioning always depends on the specific application. It is possible to use existing solutions or to use only a portion supplemented by specific needs and requirements.

The most common use of ventilation applications: