<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Adequately designed natural ventilation is the cheapest and easiest way to effectively remove indoor pollutants and keep the air inside a building fresh. A prediction of the performance and effectiveness of ventilation in order to determine the design of a ventilation system can provide real and long-term cost savings. The worst time in terms of the efficiency of natural ventilation is the spring-autumn transition period [7]. In order to improve the efficiency of natural ventilation, chimney caps are used, among others. They are designed to improve the chimney effect described in colloquial language as a chimney draft. The chimney effect is a physical phenomenon of the formation of a spontaneous flow of a warmer gas, e.g. air, from the bottom up in stem channels [12]. The article analyses the influence of the chimney cowl on the improvement of the chimney effect in an apartment of a multi-family building with natural ventilation. Long-term tests of the chimney draft were carried out for the case without and with a chimney cap. The paper presents the results of the performance (air change rate, ACH) of natural ventilation for a building with an inlet gap measured for the transitional season (between the heating and the summer season). The measurements were performed during a windy period.</p></abstract>

Adequately designed natural ventilation is the cheapest and easiest way to effectively remove indoor pollutants and keep the air inside a building fresh. A prediction of the performance and effectiveness of ventilation in order to determine the design of a ventilation system can provide real and long-term cost savings. The worst time in terms of the efficiency of natural ventilation is the spring-autumn transition period [7]. In order to improve the efficiency of natural ventilation, chimney caps are used, among others. They are designed to improve the chimney effect described in colloquial language as a chimney draft. The chimney effect is a physical phenomenon of the formation of a spontaneous flow of a warmer gas, e.g. air, from the bottom up in stem channels [12]. The article analyses the influence of the chimney cowl on the improvement of the chimney effect in an apartment of a multi-family building with natural ventilation. Long-term tests of the chimney draft were carried out for the case without and with a chimney cap. The paper presents the results of the performance (air change rate, ACH) of natural ventilation for a building with an inlet gap measured for the transitional season (between the heating and the summer season). The measurements were performed during a windy period.

Application of the Chimney Cap as a Method of Improving the Effectiveness of Natural Ventilation in Buildings

Polish Maritime Research

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

Adequately designed natural ventilation is the cheapest and easiest way to effectively remove indoor pollutants and keep the air inside a building fresh. A...

Application of the Chimney Cap as a Method of Improving the Effectiveness of Natural Ventilation in Buildings

Publié en ligne: 29 sept. 2020

Pages: 168 - 175

DOI: https://doi.org/10.2478/pomr-2020-0058

Mots clés
natural ventilation, chimney cap, ACH, wind effect, effectiveness

© 2020 Romana Antczak-Jarząbska et al., published by Sciendo

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

Application of the Chimney Cap as a Method of Improving the Effectiveness of Natural Ventilation in Buildings

Publié en ligne: 29 sept. 2020

Pages: 168 - 175

DOI: https://doi.org/10.2478/pomr-2020-0058

Mots clésnatural ventilation, chimney cap, ACH, wind effect, effectiveness

© 2020 Romana Antczak-Jarząbska et al., published by Sciendo

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

Mots clés
natural ventilation, chimney cap, ACH, wind effect, effectiveness