Simulation and Analysis of Various Ventilation Systems Given in an Example in the Same School of Indoor Air Quality
Katarzyna Gładyszewska-Fiedoruk , Vasyl Zhelykh , Andrii Pushchinskyi
AbstractThe quality of internal air is one of the factors that affect the pace and quality of knowledge acquisition. Therefore, it is important that classrooms have high quality of air. Using computer simulation, the effect of various building ventilation variants on air quality in classrooms was analyzed. Two criteria were analyzed and six variants of ventilation. The analysis was carried out using the CONTAMW program, used for multi-zone analysis of ventilation and air quality in a building. As an indicator of air quality, the concentration of carbon dioxide in school halls was adopted. The analyses show that natural ventilation is not able to provide proper air exchange. Regular airing of classrooms during breaks can reduce the carbon dioxide concentration to 2500 ppm, however, there is a significant reduction in indoor temperature (even below 10 °C). The best control over the internal environment can be obtained by using a supply–exhaust ventilation system with heat recovery. Obtaining a higher stabilization of ventilation is achieved by supplying additional energy to drive fans, however, this is only a small amount of energy compared to the cost of heat for heating the building (maximum 2%).
|Journal series||Energies, [ENERGIES], ISSN 1996-1073, (N/A 140 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||indoor air quality; ventilation systems; concentration of carbon dioxide|
|Internal identifier||ROC 19-20|
|License||Journal (articles only); published final; ; with publication|
|Score||= 140.0, 14-02-2020, ArticleFromJournal|
|Publication indicators||: 2018 = 1.156; : 2018 = 2.707 (2) - 2018=2.99 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.