Technically, it is a type of ventilation realized by taking advantage of air movements caused by wind pressure or temperature difference. If we accept that there are two openings to allow air passage in the environment and that the temperature increases in time, the warm air rises upward by natural convection (buoyancy effect), while the cold air fills the gap formed in the lower layer and causes a movement inside.
Natural ventilation can be an advantageous design because of its natural nature, low cost operational activities, healthy, high indoor air quality, supporting low energy consumption and maintenance-free. It provides almost 60% energy saving in the projects where the design and application are done correctly. Especially the schools are the places where the importance of such designs emerge most. If we assume that a child emits a heat of about 70Watt, and about 30 children will create a heat source of about 3kW with other equipment. Thus, a well-defined class of natural ventilation can complete its own comfort cycle. However, if the design is not well planned, when the outdoor environment is extremely hot, the temperature may become overwhelming. Or, if the outdoor environment is colder than 16 ° C, it may cause users to overheat when it enters.
Building system design comfort by applying the outdoor air to be taken from the windows in the atrium content or core at the ceiling level (cooling period), out of the high level, taking fresh cold air from the roof openings, passing the windows through the room (heating period) and applying some preheating at the entrance. It can provide. It is the main gain to be able to model all these things in a computerized environment before experiencing and seeing them.
This type of design can be easily applied in apartment buildings, some office buildings, theater halls, schools and hospitals and can reduce your bill by half thanks to mix ventilation. This will allow you to consume less energy than heaters. Inadequate fresh air (increase in CO2 ratio) in active system (mechanical ventilation) applications is critical for productivity performance. Due to the cost and difficulty of maintenance of the filters of these systems, in many environments the user may soon experience concentration weakness, distraction, drowsiness or headache problems due to pollution. For this reason, the most widely used in our country in terms of opening windows, especially in the summer months “cross ventilation” to meet all of our application is our perception of comfort. The reason for this is called drafts, if the temperature difference is too high or the speed of the air moving (draft effect) is high, fast convection can cause cold. You decide how much you want to open the windows for a disease-free and pleasant environment, especially at home, but let’s set the limits together when designing.
Particularly in the first design stage, acting together with the architectural team that makes its fiction makes it an opportunity to provide ideas support to the design in this sense and to try to concretize the fiction in mind with simulation.