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Uncertainty analysis in building performance simulation for design support

Hopfe, Christina J. and Hensen, Jan L. M. 2011. Uncertainty analysis in building performance simulation for design support. Energy and Buildings 43 (10) , pp. 2798-2805. 10.1016/j.enbuild.2011.06.034

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Building performance simulation (BPS) has the potential to provide relevant design information by indicating directions for design solutions. A major challenge in simulation tools is how to deal with difficulties through large variety of parameters and complexity of factors such as non-linearity, discreteness, and uncertainty. The purpose of uncertainty and sensitivity analysis can be described as identifying uncertainties in input and output of a system or simulation tool [1], [0010] and [0015]. In practice uncertainty and sensitivity analysis have many additional benefits including: (1) With the help of parameter screening it enables the simplification of a model [4]. (2) It allows the analysis of the robustness of a model [5]. (3) It makes aware of unexpected sensitivities that may lead to errors and/or wrong specifications (quality assurance) [6], [7], [8], [9] and [0050]. (4) By changing the input of the parameters and showing the effect on the outcome of a model, it provides a “what-if analysis” (decision support). [11]. In this paper a case study is performed based on an office building with respect to various building performance parameters. Uncertainty analysis (UA) is carried out and implications for the results considering energy consumption and thermal comfort are demonstrated and elaborated. The added value and usefulness of the integration of UA in BPS is shown.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TH Building construction
T Technology > TJ Mechanical engineering and machinery
Uncontrolled Keywords: Building performance simulation; Uncertainty analysis; Robustness analysis; Physical; Design and scenario uncertainties
Publisher: Elsevier
ISSN: 0378-7788
Last Modified: 19 Mar 2016 22:25

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