Ventilation has always been necessary, and as we have developed, the way we ventilate our buildings has become more complex and efficient. In commercial environments, the air quality is an essential factor in health and hygiene, and ventilation systems help to purify the air and also remove pollutants. While ventilation is important, there are several ways to achieve this, and natural ventilation is by far the preferred option.
Industrial ventilation systems can be powered by electricity, as are most, but with natural ventilation, the forces of nature are harnessed to provide a clean flow of air through the building. If your factory or warehouse is located in Australia, you might want to consider industrial ventilation systems by Airocle, a market leader in the design, supply, and installation of commercial ventilation systems.
Using the Forces of Nature
Wind can be a very destructive force, yet with natural ventilation, the power of nature is harnessed and it fuels the ventilation system that improves the air quality. The wind direction is critical when designing a natural ventilation system, as the air pressure is always greater on the side of the building that faces the wind, and by understanding this, the design engineer can ultilise the wind to drive the special rotating roof and wall vents that are cleverly positioned around the building.
The Stacking Effect
This is a natural phenomenon that involves exfiltration and infiltration, which basically means the loss of air and the replacement of that lost air. A typical structure would be warmer inside than out, and the warmer air would rise and would gradually dissipate through the roof and walls, which in turn creates a vacuum on the lower levels. This vacuum causes external air to be sucked in through the gaps in the windows and doors, and this will happen because the air pressure is automatically equalised. The exfiltration is the removal of existing air, and the infiltration is the replenishment process, which causes airflow throughout the building.
A typical ventilation system for a factory or warehouse would consist of many electrically powered extractor fans, which are placed in the desired location, while on the other side of the building would be the infiltration vents, where the clean external air is driven into the system. While this system is very effective, it is also costly, yet by using a natural ventilation system, you have no power costs, as the whole thing is driven by the wind. The wind isn’t always present, which is why most large buildings will have other systems that are electrically powered, to ensure constant climate control.
In many industrial environments, the air becomes contaminated, especially in some forms of manufacturing, so it is necessary to circulate the air and remove these unwanted pollutants in the process. Health and hygiene regulations are very strict in Australia, and there are regular inspections carried out to ensure the quality of air is within the stated levels.
Even in the home you need a level of ventilation, which comes from opening a few windows, yet commercial environments require a ventilation system that is specifically designed for that building, and by using natural ventilation, you are taking advantage of clean, renewable energy.