Air enthalpy as an IAQ indicator in hot and humid environment-experimental evaluation
Authors:
- Michał Piasecki,
- Krystyna Kostyrko,
- Małgorzata Fedorczak-Cisak,
- Katarzyna Nowak
Abstract
The authors studied the impact of indoor air humidity in the range of 60% to 90% on building user perception in the temperature range of 26 to 28 °C. The research thesis was put forward that the impact of humidity on indoor air quality dissatisfaction of building users in a warm and humid indoor environment is greater than that indicated in thermal comfort models. The presented experiment examined the indoor air quality perception of n = 28 subjects in the test chamber of a nearly zero energy building under ten environmental conditions, together with a thermal comfort assessment. The authors developed an experimental relation for predicting building users’ satisfaction based on the Weber–Fechner law, where the predicted percentage of dissatisfied users (PD) is determined by means of air enthalpy (h), PD = f(h). The obtained results confirmed the sated thesis. Additionally, the intersection points of the experimental function and isotherms resulting from the Fanger model are presented, where the thermal comfort assessment starts to indicate lower user dissatisfaction results than experimental values. The authors recommend the experimental equation for humid air enthalpies in the range of 50 to 90 kJ/kg. The indoor air quality assessment based on the enthalpy value is simple and can be used to determine the overall Indoor Environmental Quality index of a building (IEQindex).
- Record ID
- CUT04460070153d49329ed594f45b8d43f1
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2020
- Vol
- 13
- No
- 6
- Pages
- [1-21]
- Article number
- 1481
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 18-21; Bibliografia (liczba pozycji) - 57; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, Iss. 6, Spec. Iss.
- Substantive notes
- Special Issue: Procedures and Methodologies for the Control and Improvement of Energy-Environmental Quality in Construction
- Keywords in English
- indoor air quality, IAQ, enthalpy, humidity, thermal comfort, TC, dissatisfaction, panel tests, nearly zero energy building, NZEB, indoor environmental quality, IEQ
- DOI
- DOI:10.3390/en13061481 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/13/6/1481/htm Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT04460070153d49329ed594f45b8d43f1/
- URN
urn:pkr-prod:CUT04460070153d49329ed594f45b8d43f1
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.