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Sustainability 2015, 7(1), 767-781; doi:10.3390/su7010767

Evaluation of the Reference Numerical Parameters of the Monthly Method in ISO 13790 Considering S/V Ratio

1
Green Building Research Division, Korea Institute of Civil Engineering and Building Technology, Gyeonggi 411-712, Korea
2
Department of Architectural Engineering, Inha University, Incheon 402-751, Korea
*
Authors to whom correspondence should be addressed.
Academic Editor: Derek Clements-Croome
Received: 6 December 2014 / Accepted: 5 January 2015 / Published: 12 January 2015
(This article belongs to the Special Issue Green Building)
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Abstract

Many studies have investigated the accuracy of the numerical parameters in the application of the quasi steady-state calculation method. The aim of this study is to derive the reference numerical parameters of the ISO 13790 monthly method by reflecting the surface-to-volume (S/V) ratio and the characteristics of the structures. The calculation process was established, and the parameters necessary to derive the reference numerical parameters were calculated based on the input data prepared for the established calculation processes. The reference numerical parameters were then derived through regression analyses of the calculated parameters and the time constant. The parameters obtained from an apartment building and the parameters of the international standard were both applied to the Passive House Planning Package (PHPP) and EnergyPlus programs, and the results were analyzed in order to evaluate the validity of the results. The analysis revealed that the calculation results based on the parameters derived from this study yielded lower error rates than those based on the default parameters in ISO 13790. However, the differences were shown to be negligible in the case of high heat capacity. View Full-Text
Keywords: ISO13790; surface-to-volume ratio; monthly method; utilization factor; reference numerical parameters ISO13790; surface-to-volume ratio; monthly method; utilization factor; reference numerical parameters
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. (CC BY 4.0).

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MDPI and ACS Style

Kwak, H.-J.; Jo, J.-H.; Suh, S.-J. Evaluation of the Reference Numerical Parameters of the Monthly Method in ISO 13790 Considering S/V Ratio. Sustainability 2015, 7, 767-781.

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