The influence of secondary effects on global warming and cost optimization of insulation in the building envelope

Ylmén, Peter; Mjörnell, Kristina; Berlin, Johanna; Arfvidsson, Jesper

doi:10.1016/j.buildenv.2017.03.019

Cited by 22 publications

(11 citation statements)

References 10 publications

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“…In this case, the different weighting criteria can cause problems of subjectivity when prioritizing refurbishment strategies, as the weighting system is directly linked to a subjective process. Finally, the third option is the unified system [31,38]. This system allows the environmental and economic impacts to be shown in a single study (but separately), while avoiding the use of weighting systems.…”

Section: Resultsmentioning

confidence: 99%

“…Sustainability 2020, 12, 3914 9 of 23 system [31,38]. This system allows the environmental and economic impacts to be shown in a single study (but separately), while avoiding the use of weighting systems.…”

Section: Resultsmentioning

confidence: 99%

“…Global cost reduction, investment cost reduction, simple payback period, discounted payback period, net present value [38] GWP Present value, present cost [39] GWP, CED, AP, Ozone Depletion Potential (ODP), POCP, EP [40] CED Life-cycle cost [41] Operational Energy, GWP, AP, ODP, EP, Smog Formation…”

Section: Studymentioning

confidence: 99%

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Environmental and Economic Prioritization of Building Energy Refurbishment Strategies with Life-Cycle Approach

2020

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An increasing number of studies apply life-cycle assessment methodology to assess the impact of a new building or to prioritize between different building refurbishment strategies. Among the different hypotheses to consider during the application of this methodology, the selection of the impact indicator is critical, as this choice will completely change the interpretation of the results. This article proposes applying four indicators that allow analysing the results of a refurbishment project of a residential building with the life-cycle approach: non-renewable primary energy use reduction (NRPER), net energy ratio (NER), internal rate of return (IRR), and life-cycle payback (LC-PB). The combination of environmental and economic indicators when evaluating the results has allowed to prioritize among the different strategies defined for this case study. Furthermore, an extensive sensitivity assessment reflects the high uncertainty of some of the parameters and their high influence on the final results. To this end, new hypotheses related to the following parameters have been considered: reference service life of the building, estimated service life of material, operational energy use, conversion factor, energy price, and inflation rate. The results show that the NRPE use reduction value could vary up to −44%. The variation of the other indicators is also very relevant, reaching variation rates such as 100% in the NER, 450% in the IRR, and 300% in the LC-PB. Finally, the results allow to define the type of input or hypothesis that influences each indicator the most, which is relevant when calibrating the prioritization process for the refurbishment strategy.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Environmental and Economic Prioritization of Building Energy Refurbishment Strategies with Life-Cycle Approach

2020

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“…Azari R. et al [23] explored optimum building envelope design with respect to energy use and life cycle environmental impacts from insulation material, window type, window frame material, wall thermal resistance, and window-to-wall ratios in a low-rise office building. Ylmén, P. et al [24] conducted a parameter study of the building envelope insulation thickness regarding global warming potential and life cycle costs on the typical building case in Sweden. Volf M. et al [25] developed an environmentally friendly alternative to aluminum curtain wall systems by altering materials on one refurbishment building.…”

Section: Introductionmentioning

confidence: 99%

“…The design factors of the envelope structure included the physical parameters such as building material types [25,26], thermal insulation layer thickness [24], wall thermal resistance, and window wall area ratio [23], and rarely involved the extended parameters such as transportation distance, climatic conditions, and construction energy consumption. In actual engineering, there are many different construction schemes for the same heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

Evaluation Model of Environmental Impacts of Insulation Building Envelopes

et al. 2020

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Energy consumption during use is the focus of insulation envelope design, but the environmental impact of other stages in the entire life cycle of building envelopes should be of equal concern. In this paper, a model has been developed based on the life-cycle environmental assessment for calculating the environmental impacts of building envelopes. The model proposed will be useful to evaluate the environmental performance of various envelopes to optimize the design of energy-saving envelopes. Consequently, lots of experiments are conducted for environmental impact assessment and analysis for external windows and filler walls with energy-savings in heating areas of China. Four conclusions can be drawn from the analysis. (1) K of building envelope is the design parameter of the greatest impact on environmental performance and has a critical value, which is the value that has the smallest environmental impact over the entire life cycle. (2) The importance of the environmental impact of the building envelope during the life cycle stages is as follows: usage > production > transportation > disposal > construction. The construction process of the thermal insulation wall could be negligible. (3) The choice of regional building materials should consider the distance of transportation, which may be the key factor determining its life cycle environmental performance. (4) Aerated concrete EPS walls and wooden windows are the first choices for envelope construction from the environmental impact throughout the life cycle.

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Implementing Life Cycle Sustainability Assessment in Building and Energy Retrofit Design—An Investigation into Challenges and Opportunities

Toosi

Lavagna

Leonforte

et al. 2021

Life Cycle Sustainability Assessment (LCSA)

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The influence of secondary effects on global warming and cost optimization of insulation in the building envelope

Cited by 22 publications

References 10 publications

Environmental and Economic Prioritization of Building Energy Refurbishment Strategies with Life-Cycle Approach

Environmental and Economic Prioritization of Building Energy Refurbishment Strategies with Life-Cycle Approach

Evaluation Model of Environmental Impacts of Insulation Building Envelopes

Implementing Life Cycle Sustainability Assessment in Building and Energy Retrofit Design—An Investigation into Challenges and Opportunities

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