<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Under replacement ventilation conditions, a simplified physical model of a tall space (livestock house) was established using ProSim software, and the relevant boundary conditions were set. The airflow size and direction distribution under different air supply and exhaust airflow conditions were obtained by slicing, and the simulation results showed that appropriately increasing the air supply and exhaust airflow helps to increase the pollutant emission rate so that pollutants can be discharged in time, but when the air supply and exhaust airflow were increased to a certain extent, these will cause the airflow vortex phenomenon near the pollutant source, which will enhance the mixing effect of pollutants and surrounding air, making up the pollutant concentration also. The study found that when the indoor air supply and exhaust air volume is increased by 45 times/h, the replacement ventilation effect is optimal and the indoor pollutant concentration is the lowest.</p>
</abstract>

Under replacement ventilation conditions, a simplified physical model of a tall space (livestock house) was established using ProSim software, and the relevant boundary conditions were set. The airflow size and direction distribution under different air supply and exhaust airflow conditions were obtained by slicing, and the simulation results showed that appropriately increasing the air supply and exhaust airflow helps to increase the pollutant emission rate so that pollutants can be discharged in time, but when the air supply and exhaust airflow were increased to a certain extent, these will cause the airflow vortex phenomenon near the pollutant source, which will enhance the mixing effect of pollutants and surrounding air, making up the pollutant concentration also. The study found that when the indoor air supply and exhaust air volume is increased by 45 times/h, the replacement ventilation effect is optimal and the indoor pollutant concentration is the lowest.

Influence of displacement ventilation on the distribution of pollutant concentrations in livestock housing

Qingdao Agricultural University Architectural Engineering Institute

Applied Mathematics and Nonlinear Sciences

This work is licensed under the Creative Commons Attribution 4.0 International License.

Under replacement ventilation conditions, a simplified physical model of a tall space (livestock house) was established using ProSim software, and the relevant...

Influence of displacement ventilation on the distribution of pollutant concentrations in livestock housing

Published Online: Apr 29, 2022

Page range: 2281 - 2290

Received: Jan 05, 2022

Accepted: Feb 23, 2022

DOI: https://doi.org/10.2478/amns.2021.2.00181

Keywords
displacement ventilation, number of air changes, pollutant concentration, ventilation volume, emission rate

© 2023 Zhang Ruifeng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Influence of displacement ventilation on the distribution of pollutant concentrations in livestock housing

Published Online: Apr 29, 2022

Page range: 2281 - 2290

Received: Jan 05, 2022

Accepted: Feb 23, 2022

DOI: https://doi.org/10.2478/amns.2021.2.00181

Keywordsdisplacement ventilation, number of air changes, pollutant concentration, ventilation volume, emission rate

© 2023 Zhang Ruifeng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
displacement ventilation, number of air changes, pollutant concentration, ventilation volume, emission rate