Exhaust air
Exhaust air is generally the air flowing freely or forced out of a room. When considering living space, this exhaust air can z. B. can be further used by these other rooms is fed back as recirculated air or their thermal energy is used in a heat or cold recovery .
A distinction must be made between exhaust air and exhaust gas . Exhaust gas consists of combustion gases and is more polluted than exhaust air.
Applications
- Room air becomes exhaust air as soon as it leaves the room. For qualitative classification, the exhaust air (as well as the exhaust air ) is divided into four categories:
- Category ETA -1 : Air from rooms, the main emissions of which are building materials and human metabolism
- Category ETA -2 : Air from rooms with the same source of pollution as ETA -1, but with more human activity and smoking permission
- Category ETA -3 : Air from rooms in which moisture and chemicals are released
- Category ETA -4 : air that contains odors and pollution beyond the permitted level
- If exhaust air flows from different categories meet, the category with the highest number is decisive.
- Tumble dryer : The moisture absorbed for drying is discharged outside with air.
- Extractor hood : An extractor hood absorbs the vapors produced during cooking and guides them outside.
See also
Wiktionary: Exhaust air - explanations of meanings, word origins, synonyms, translations
literature
- DIN EN 13779 ventilation of non-residential buildings (e.g. offices)
- DIN 1946-6 - ventilation of residential buildings
- Ernst-Rudolf Schramek, Hermann Recknagel , Eberhard Sprenger: Pocket book for heating + air conditioning , 73rd edition. Oldenbourg Industrieverlag Munich 2007, ISBN 3-8356-3104-7