Ventilation is actually a process through which fresh air is intentionally pushed inside a space and stale air is thrown out. The ventilating process can be achieved naturally or mechanically. The ventilators and Ac have been used since a long time to maintain a nice air flow inside a building or a house. Fresh air helps to lower down the temperature of the house. Ventilation is very essential part of home improvement.
Artificial infiltration: apart from intentional ventilation, air also enters the building through infiltration process. Infiltration process is uncontrollable air flow in a certain space by unintentional and adventitious cracks and gaps in the envelope of the building. The loss of air through enclosed space is known as exfiltration.
The amount of air that will enter inside the building depends upon the porosity and the magnitude of various natural factors like temperature and wind. Various vents and openings in the building created deliberately are also a part of the ventilating design.
They form routes for the natural airflow at times when pressure acting at such places is subjugated by the climatic conditions. Natural air flow or infiltration is quite different from mechanical infiltration. Air infiltration helps in adding to the amount of air entering inside the building and but may hamper or alter the intentional air flow pattern.
The magnitude of the filtration process is often ignored by the architect or the designer which decreases the performance, extreme energy performance and inadequate heating (or cooling) of the building. There are some air tightness standards that are often used by the countries to limit the infiltration loss.
Maintaining proper standards during deigning any building or house is compulsory so that various home improvement factors are included. Air recirculation is used commercially to help in thermal conditioning. The air that is circulated across the building is filtered from time to time to settle down dust particles from it. But it usually does not provide any helpful conditioning since oxygen and dust particles are not removed or replenished properly and oxygen is not recovered.
Some of the leakages through ducts and ventilation joints, air conditioning or heating are substantial. According to modera in 1993, estimates that more than 20% of the heat through North American warm air systems may be lost by duct leakage. Also most of the opening in the building accounts for the entry of pollutants and dust particles.
The design used to construct a particular building really matters a lot in deciding whether the ventilating areas and openings in the building are really helping in conditioning or are just adding to improper ventilation. So, designing a building in a right form and design is very important to let people stay in it peacefully and happily.