átszellztetési

Átszellztetési is a term used in Hungarian architectural and HVAC discourse to refer to the deliberate exchange of air between interior spaces and the exterior or between zones, with the aim of refreshing indoor air, diluting pollutants, and controlling humidity and temperature.

Etymology: from át- "across, through" and szellőztetés "ventilation" with the -ési suffix forming a noun for the process.

Mechanisms: natural cross-ventilation via openings on opposite sides; wind-driven pressure differences; stack effect due to buoyancy; mechanical support via exhaust or supply dampers; control strategies include window management, vent placement, and programmable HVAC.

Applications: used in building design to improve IAQ and reduce energy use, particularly in temperate climates; relevant in energy-efficient and passive-design contexts; used in residential and commercial buildings.

Considerations: climate dependence; potential for thermal discomfort and uncontrolled airflow; risk of bringing in outdoor pollutants; design must balance ventilation rate with energy and comfort; measurement in air exchange rate (ACH).

Standards and research: addressed in international standards such as ASHRAE 62.1 and EN 16798; research explores optimization under different climate conditions; in Hungarian practice, guidelines align with EU standards.