To choose an efficient ventilation system, we must consider the use made of the building and its air conditioning needs. The function of the building in is in question (housing or workplace) is a determining factor when selecting the ventilation option. We offer this function for Construction Companies in UAE.
Why Is It Necessary to Ventilate?
The interiors of buildings need to ventilate to renew the air and thus avoid condensation, bad odors and the proliferation of suspended particles that can be harmful to human health. Adequate efficient ventilation is essential to avoid humidity and to clean the air of pollutants from different sources, such as human activity itself.
Health And Air Quality
On the other hand, an inappropriate choice of the ventilation system used can result in considerable energy and economic waste.
Let The Air Run! New Regulations in Force
In recent years the way of building and building has changed. We especially see this in relation to the need and awareness of greater energy efficiency both in homes and in work spaces.
Currently, newly built buildings incorporate thermal insulation systems, tightness control and all kinds of new technologies. We aim all these systems at reducing the energy demand of homes and achieving maximum energy efficiency. In this sense, these efficient buildings necessarily require ventilation systems to maintain “adequate” indoor air quality.
Polluted Air Extraction
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These systems must control humidity, CO2 level and volatile organic compounds. And obtain maximum energy savings and comfort for its occupants. In addition, they must guarantee the admission and expulsion of polluted air.
Address these requirements in the recently modified version of the Technical Building Code in its HS3 section of the basic health document. The contemplates the extraction of air from the humid places of a building from the supply of air from the dry premises. Traditionally, due to the lack of tightness, ventilation generate.
At many times and was excessive and uncontrolled. This ventilation came from leaks in the exterior walls, which caused a lack of interior comfort for the users of the space.
Existing Ventilation Options
Speaking generically, we can distinguish four types of building ventilation.
Infiltration Ventilation
Infiltration ventilation is not a system per se, but the spontaneous aeration that occurs between the joints of windows and doors with the wall. It is an irregular ventilation that depends on external factors, such as the wind, the temperature or the thermal difference between the interior and the exterior.
Natural Ventilation
It is the one that occurs when we open the windows and doors to let in the outside air. The simplest and cheapest system. Also, it serves to evacuate very poor-quality air at a given time, eg people smoking. However, it is also applicable in summer months. In the winter months with heating or in summer with the house with refrigeration it is not a correct system, since the windows and doors will remain closed.
Hybrid Ventilation
Hybrid ventilation is a type of controlled ventilation. In which, when ambient pressure and temperature conditions are favorable. Air renewal produced by natural ventilation. And when conditions are unfavorable, forced ventilation activate by mechanical extraction.
A hybrid ventilation system will fluctuate between natural ventilation and mechanical ventilation. Based on weather conditions and pressure. That is why, in suitable weather conditions, a hybrid ventilation system could achieve considerable energy savings since the mechanical extractor does not need to be in operation all the time, thus reducing energy consumption.
Mechanical And Controlled Ventilation
A mechanical air renewal takes place starting with the intake of fresh air in dry rooms such as the living room and bedrooms, taking this purer air under the doors to the humid areas such as bathrooms and WC, and extracting it from here to the outside of the room. home in a controlled way. The most used systems are intake and extraction fans, with or without a heat exchanger depending on the type of system.
These systems guarantee the best indoor air quality regardless of external conditions, such as the wind blowing on the façade. This type of ventilation is very efficient due to the total control of the necessary air flows at all times. It is the ideal option for compliance with current regulations, both in the tertiary sector and for homes and therefore the current trend in buildings.
This system also provides another series of advantages in relation to the improvement of air quality thanks to filtration and also contributes to reducing noise from outside since the ventilation process carry out with the windows closed, controlling from the inside the amount of air admitted.
Solutions
Regardless of the above, there are currently decentralized ventilation solutions on the market with or without heat recovery such as Oxygen or Fresh, or centralized systems such as the HRC that can even combine efficient and intelligent ventilation with low-design radiators. H2O to achieve perfect comfort in heating and air conditioning in the home.
Air Renewal Oxygen
In order to determine the economic viability of any efficient ventilation system, it is necessary to carry out an adequate study on the costs of the installation, as well as other aspects such as the climatology of the area where the installation is to carry out. Consult an energy efficiency specialist to help you decide on the most suitable option for your needs.
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