<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper discusses the results of research conducted with the Ansys Fluent programme on the air flow through natural ventilation supply and exhaust ducts of rooms located on the ground and upper floor of a building. A scenario with air inflow to a room through an air intake located on the basement floor level was selected for the tests. All simulations were performed for outdoor temperatures of +3,+12, and -15°C (simulations run for an outdoor air temperature of +12°C are discussed in detail). The temperature inside the room is +20°C, i.e. at the minimum temperature level for thermal comfort. The simulations address such issues as the pressure system inside the room and in the exhaust duct, the distribution of air temperature in the room and the vector direction of airflow through the supply and exhaust ducts.</p></abstract>

This paper discusses the results of research conducted with the Ansys Fluent programme on the air flow through natural ventilation supply and exhaust ducts of rooms located on the ground and upper floor of a building. A scenario with air inflow to a room through an air intake located on the basement floor level was selected for the tests. All simulations were performed for outdoor temperatures of +3,+12, and -15°C (simulations run for an outdoor air temperature of +12°C are discussed in detail). The temperature inside the room is +20°C, i.e. at the minimum temperature level for thermal comfort. The simulations address such issues as the pressure system inside the room and in the exhaust duct, the distribution of air temperature in the room and the vector direction of airflow through the supply and exhaust ducts.

The negative and positive pressure system of natural balanced ventilation

Institute of Construction Design, Faculty of Architecture

Technical Transactions

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

{"article-title":"The negative and positive pressure system of natural balanced ventilation"}

This paper discusses the results of research conducted with the Ansys Fluent programme on the air flow through natural ventilation supply and exhaust ducts of...

The negative and positive pressure system of natural balanced ventilation

Published Online: Jul 30, 2020

Page range: -

Received: Feb 07, 2020

Accepted: Jul 23, 2020

DOI: https://doi.org/10.37705/TechTrans/e2020026

Keywords
positive pressure, negative pressure, supply, exhaust, exchange rate, air stream

© 2020 Tomasz Gaczoł, published by Sciendo

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

The negative and positive pressure system of natural balanced ventilation

Published Online: Jul 30, 2020

Page range: -

Received: Feb 07, 2020

Accepted: Jul 23, 2020

DOI: https://doi.org/10.37705/TechTrans/e2020026

Keywordspositive pressure, negative pressure, supply, exhaust, exchange rate, air stream

© 2020 Tomasz Gaczoł, published by Sciendo

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

Keywords
positive pressure, negative pressure, supply, exhaust, exchange rate, air stream