Comprehensive assessment of sensitivity analysis methods for the identification of influential factors in building life cycle assessment

Pannier, Marie-Lise; Schalbart, Patrick; Peuportier, Bruno

doi:10.1016/j.jclepro.2018.07.070

Cited by 75 publications

(52 citation statements)

References 39 publications

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“…Sensitivity analysis (SA) plays an important role in performance analysis such as building energy, which can specifically extract key factors that affect each building performance [41,47]. Regression methods are the most commonly used global SA method because they are easy to understand, and the minimum sample size required is relatively small [41].…”

Section: Sensitivity Analysismentioning

confidence: 99%

A three-stage optimization methodology for envelope design of passive house considering energy demand, thermal comfort and cost

Wang

Feng

2020

Energy

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Due to reducing the reliance of buildings on fossil fuels, Passive House (PH) is receiving more and more attention. It is important that integrated optimization of passive performance by considering energy demand, cost and thermal comfort. This paper proposed a set three-stage multi-objective optimization method that combines redundancy analysis (RDA), Gradient Boosted Decision Trees (GBDT) and Nondominated sorting genetic algorithm (NSGA-II) for PH design. The method has strong engineering applicability, by reducing the model complexity and improving efficiency. Among then, the GBDT algorithm was first applied to the passive performance optimization of buildings, which is used to build meta-models of building performance. Compared with the commonly used meta-model, the proposed models demonstrate superior robustness with the standard deviation at 0.048. The optimization results show that the energy-saving rate is about 88.2% and the improvement of thermal comfort is about 37.8% as compared to the base-case building. The economic analysis, the payback period were used to integrate initial investment and operating costs, the minimum payback period and uncomfortable level of Pareto frontier solution are 0.48 years and 13.1%, respectively. This study provides the architects rich and valuable information about the effects of the parameters on the different building performance.

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Section: Sensitivity Analysismentioning

confidence: 99%

A three-stage optimization methodology for envelope design of passive house considering energy demand, thermal comfort and cost

Wang

Feng

2020

Energy

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“…LCAs are currently done after the project completion [7] which limits the usefulness of the study in terms of possible interventions to reduce the environmental impact. It is reported that practitioners are facing uncertainty and variations in results when using LCA [8].…”

Section: Climate Declaration and Lca Toolsmentioning

confidence: 99%

Perspectives of building professionals on the use of LCA tools in Swedish climate declaration

2021

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From 1st January 2022, Swedish government plan to introduce the climate declarations as a legal requirement for new buildings. LCA is a method that could be used to quantify buildings’ climate impact. The climate declaration in the Swedish building code expects to create interest in LCA among stakeholders. This study aims to identify and understand the challenges and opportunities of using LCA by stakeholders during the early stage of construction process. The study is based on responses from six building professionals to a questionnaire. The policy implications of the study findings are discussed.

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“…Hence, reliability issues in LCA calculations can be mitigated. Treating probabilistically the service lives has been already proposed by Aktas (Aktas and Bilec, 2012), Pannier (Pannier et al, 2018) and Hoxha (Hoxha et al, 2014). However, Aktas used only a limited number of materials, while the latter (Pannier and Hoxha) defined the probability density function, based on theoretical assumptions.…”

Section: Introductionmentioning

confidence: 99%

Uncertainty and Sensitivity Analyses for Evaluating the Building Element‘s Replacement in Building LCA

Goulouti¹,

Padey²,

Galimshina³

et al. 2020

XV International Conference on Durability of Building Materials and Components. eBook of Proceedings

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This paper presents a systematic way to consider the uncertainties of the building elements' service lives within a stochastic framework, by defining the corresponding probability density functions, based on a service life database. This methodology is appropriate for screening and detailed building LCA, since the service life database offers the possibility to define the probability density functions of the service lives, in different level of details.

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Comprehensive assessment of sensitivity analysis methods for the identification of influential factors in building life cycle assessment

Cited by 75 publications

References 39 publications

A three-stage optimization methodology for envelope design of passive house considering energy demand, thermal comfort and cost

A three-stage optimization methodology for envelope design of passive house considering energy demand, thermal comfort and cost

Perspectives of building professionals on the use of LCA tools in Swedish climate declaration

Uncertainty and Sensitivity Analyses for Evaluating the Building Element‘s Replacement in Building LCA

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