FLOW SIMULATION FOR DESIGN OF VENTILATION SYSTEMS IN ANIMAL HOUSES

摘要

In livestock farming the climate within an animal house is a dominant factor for animal welfare. There are threshold values or recommendations for the most important climate parameters. Temperature, humi-dity, CO2 and NH3 gas concentrations, germs, dust, odour and air flow velocity have to be observed. Unfortunately the necessary ventilation of livestock buildings leads to emissions, too. So an important aim is to develop ventilation systems that produce 1. Good climate conditions for the animals, 2. But also minimize emissions. The Leibniz-Institute for Agricultural Engineering (ATB) carries out climate-specific investigations to develop suitable ventilation systems for animal houses, supported by flow simulations of the Federal Agricultural Research Centre, Institute of Techno-logy and Biosystems (FAL).