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Air Enthalpy as an IAQ Indicator in Hot and Humid Environment—Experimental Evaluation

Author

Listed:
  • Michał Piasecki

    (Building Research Institute, Filtrowa 1, 00-611 Warszawa, Poland)

  • Krystyna Kostyrko

    (Building Research Institute, Filtrowa 1, 00-611 Warszawa, Poland)

  • Małgorzata Fedorczak-Cisak

    (Faculty of Civil Engineering, Cracow University of Technology, 24 Warszawska Street, 31-150 Krakow, Poland)

  • Katarzyna Nowak

    (Faculty of Civil Engineering, Cracow University of Technology, 24 Warszawska Street, 31-150 Krakow, Poland)

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 (IEQ index ).

Suggested Citation

  • Michał Piasecki & Krystyna Kostyrko & Małgorzata Fedorczak-Cisak & Katarzyna Nowak, 2020. "Air Enthalpy as an IAQ Indicator in Hot and Humid Environment—Experimental Evaluation," Energies, MDPI, vol. 13(6), pages 1-21, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1481-:d:335118
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    References listed on IDEAS

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    1. Croitoru, Cristiana & Nastase, Ilinca & Bode, Florin & Meslem, Amina & Dogeanu, Angel, 2015. "Thermal comfort models for indoor spaces and vehicles—Current capabilities and future perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 44(C), pages 304-318.
    2. Michał Piasecki & Mateusz Kozicki & Szymon Firląg & Anna Goljan & Krystyna Kostyrko, 2018. "The Approach of Including TVOCs Concentration in the Indoor Environmental Quality Model (IEQ)—Case Studies of BREEAM Certified Office Buildings," Sustainability, MDPI, vol. 10(11), pages 1-22, October.
    3. Djongyang, Noël & Tchinda, René & Njomo, Donatien, 2010. "Thermal comfort: A review paper," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 2626-2640, December.
    4. Michał Piasecki & Małgorzata Fedorczak-Cisak & Marcin Furtak & Jacek Biskupski, 2019. "Experimental Confirmation of the Reliability of Fanger’s Thermal Comfort Model—Case Study of a Near-Zero Energy Building (NZEB) Office Building," Sustainability, MDPI, vol. 11(9), pages 1-25, April.
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    Cited by:

    1. Marek Dudzik & Anna Romanska-Zapala & Mark Bomberg, 2020. "A Neural Network for Monitoring and Characterization of Buildings with Environmental Quality Management, Part 1: Verification under Steady State Conditions," Energies, MDPI, vol. 13(13), pages 1-24, July.
    2. Benedetto Nastasi & Francesco Mancini, 2021. "Procedures and Methodologies for the Control and Improvement of Energy-Environmental Quality in Construction," Energies, MDPI, vol. 14(9), pages 1-2, April.
    3. Pisello, A.L. & Pigliautile, I. & Andargie, M. & Berger, C. & Bluyssen, P.M. & Carlucci, S. & Chinazzo, G. & Deme Belafi, Z. & Dong, B. & Favero, M. & Ghahramani, A. & Havenith, G. & Heydarian, A. & K, 2021. "Test rooms to study human comfort in buildings: A review of controlled experiments and facilities," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).
    4. Walery Jezierski & Dorota Anna Krawczyk & Beata Sadowska, 2023. "The Impact of Climate Change and Window Parameters on Energy Demand and CO 2 Emissions in a Building with Various Heat Sources," Energies, MDPI, vol. 16(15), pages 1-21, July.
    5. Fu-Wing Yu & Wai-Tung Ho, 2023. "Time Series Forecast of Cooling Demand for Sustainable Chiller System in an Office Building in a Subtropical Climate," Sustainability, MDPI, vol. 15(8), pages 1-18, April.
    6. Michał Piasecki & Krystyna Kostyrko, 2020. "Development of Weighting Scheme for Indoor Air Quality Model Using a Multi-Attribute Decision Making Method," Energies, MDPI, vol. 13(12), pages 1-35, June.
    7. Piotr Michalak, 2021. "Selected Aspects of Indoor Climate in a Passive Office Building with a Thermally Activated Building System: A Case Study from Poland," Energies, MDPI, vol. 14(4), pages 1-22, February.

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