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Buildings 2014, 4(3), 375-393; doi:10.3390/buildings4030375
Article

Evaluation of Parameters Influencing the Moisture Buffering Potential of Hygroscopic Materials with BSim Simulations

1
, 2,* , 3
 and 3
Received: 17 June 2014; in revised form: 15 July 2014 / Accepted: 16 July 2014 / Published: 23 July 2014
(This article belongs to the Special Issue Building Performance Analysis and Simulation)
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Abstract: Validated by a large-scale experimental investigation on moisture buffering (MB) effect, a whole building Heat, Air and Moisture (HAM) simulation tool, BSim, is applied to evaluate the impact of a number of parameters on the moisture buffering potential of a full-scale test room finished with hygroscopic materials. The Maximum Accumulated Moisture Buffering Value (MAMBV), developed from the moisture balance analyses in the experimental study, is used in the BSim simulation result analyses to evaluate the impact of various parameters. The parameters investigated include ventilation rates (0.5–5 ACH), types of materials (uncoated gypsum board, wood paneling, orientated strand board, aerated cellular concrete, and telephone book paper), humidity conditions of supply air, volume rates, and steady-state outdoor conditions. It is found that all these parameters have a significant impact on the moisture buffering potential except for the steady-state outdoor conditions. Two material properties, the moisture capacity and vapor permeability, determine the moisture buffering capacities of materials under different moisture generation regimes.
Keywords: moisture buffering; whole building HAM simulations; hygroscopic materials; material properties; building envelope; environmental chamber moisture buffering; whole building HAM simulations; hygroscopic materials; material properties; building envelope; environmental chamber
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Yang, X.; Ge, H.; Fazio, P.; Rao, J. Evaluation of Parameters Influencing the Moisture Buffering Potential of Hygroscopic Materials with BSim Simulations. Buildings 2014, 4, 375-393.

AMA Style

Yang X, Ge H, Fazio P, Rao J. Evaluation of Parameters Influencing the Moisture Buffering Potential of Hygroscopic Materials with BSim Simulations. Buildings. 2014; 4(3):375-393.

Chicago/Turabian Style

Yang, Xiangjin; Ge, Hua; Fazio, Paul; Rao, Jiwu. 2014. "Evaluation of Parameters Influencing the Moisture Buffering Potential of Hygroscopic Materials with BSim Simulations." Buildings 4, no. 3: 375-393.

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