Development of Hygrothermal Reference Year for Hygrothermal Simulation of Hygroscopic Building Construction for Guangzhou

Abstract:

For developing a hygrothermal reference year (HRY) to support the hygrothermal simulation of hygroscopic building construction in Guangzhou, a typical hot-humid city located in south China, the study first clarifies the correlation between the hygrothermal simulation results and the meteorological elements based on a 10-year baseline simulation with the hourly meteorological source data series obtained from the city weather station (CWS, from 2010 to 2019), then develops the HRY with consideration to typical construction conditions, and finally evaluates the representativeness of HRY. It shows that the simulation results of HVAC demand, indoor hygrothermal environment and exterior walls moisture content are significantly correlated with the air temperature T_e, relative humidity RH_e, and the normal rain RN. Based on this correlation, T_e.mean, RH_e.mean and RN_sum are used as the indexes for selecting typical months from the source data series, which are then spliced to generate the HRY. A parallel simulation comparison among four model groups accordingly with HRY, CWS as well as two commonly used meteorological data, Meteo and epw, as outdoor climate conditions, shows that the curve similarity of monthly simulation results between the HRY model group and the CWS group has been significantly improved, and the annual simulation results of the HRY group are also in good agreement with the CWS group.

• Periodical: Key Engineering Materials (Volume 983)
• Pages: 63-71
• DOI: https://doi.org/10.4028/p-yqe2zJ
• Online since: July 2024
• Authors: Zu Jian Huang*, Yang Zhao
• Keywords: Building Envelope, Building Simulation, Coupled Heat, Hygrothermal Reference Year, Moisture Transfer Model

References

[1] M. Woloszyn and C. Rode. IEA Annex 41: Whole Building Heat, Air, Moisture Response. Subtask 1: Modeling Principles and Common Exercises. International Energy Agency (2008)

[2] T. Schöner and D. Zirkelbach. Development of Hygrothermal Reference Years. Proceedings of the CESBP Central European Symposium on Building Physics and BauSIM (2016), pp.133-140

[3] D. Zirkelbach. Energieoptimiertes Bauen: Klima-und Oberflächenübergangsbedingungen für die hygrothermische Bauteilsimulation. Fraunhofer IBP, Holzkirchen (2016)

[4] T. Schmidt. Online Hilfe zu WUFI Pro 5.2. Fraunhofer IBP, Holzkirchen (2013)

[5] Meteonorm Handbook part II: theory. Meteotest, Switzerland (2018)

[6] P. Ineichen, R.R. Perez and R.D. Seal, et al. Dynamic global-to-direct irradiance conversion models. Ashrae Transactions 98 (1992), pp.354-369

[7] American Society of Heating, Refrigerating and Air conditioning Engineers (ASHRAE). Standard A. 160P: Design Criteria for Moisture Control in Buildings. ASHRAE, America (2006)

[8] Z. Huang, Y. Sun and F. Musso. Experimental study on bamboo hygrothermal properties and the impact of bamboo-based panel process. Construction and Building Materials 155 (2017), pp.1112-1125

DOI: 10.1016/j.conbuildmat.2017.08.133

[9] Z. Huang, Y. Sun and F. Musso. Assessment on bamboo scrimber as a substitute for timber in building envelope in tropical and humid subtropical climate zones - Part 1 hygrothermal properties test. 2017 International Conference on Building Materials and Materials Engineering, Lyon, France (2017)

DOI: 10.1088/1757-899x/264/1/012006