An optimized solution for retrofitting building façades: Energy efficiency and cost-benefit analysis from a life cycle perspective

Tushar, Quddus; Zhang, Kevin; Bhuiyan, Mohammad Amir Hossain; Giustozzi, Filippo; Navaratnam, Satheeskumar; Hou, Lei

doi:10.1016/j.jclepro.2022.134257

Cited by 22 publications

(11 citation statements)

References 29 publications

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“…For a heritage building in a mild climate, the application of low-E double-glazing units was shown to reduce the annual energy demand by almost 14% [4]. Mousavi et al [52] state that previous studies have shown that the use of double low-E glazing units and triple-glazing units in the hot, humid climate of Malaysia could reduce the annual energy consumption by up to 6.4% and 5.5%, respectively [52].…”

Section: Energy Performance Evaluation Of Glazing Systemsmentioning

confidence: 99%

“…Research regarding commercial buildings' energy retrofitting in the UK revealed that replacing single-glazing units with double-glazing systems could increase energy conservation by 39% to 53% [25]. The use of low-E glazing filled with air or argon helps building owners not only save energy (when compared with single-glazing units) but also improve indoor thermal comfort [52]. Triple-glazing systems have the potential to reduce energy consumption to a greater extent when compared with double-glazing systems.…”

Section: Energy Performance Evaluation Of Glazing Systemsmentioning

confidence: 99%

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Comprehensive Review and Analysis of Glazing Systems towards Nearly Zero-Energy Buildings: Energy Performance, Thermal Comfort, Cost-Effectiveness, and Environmental Impact Perspectives

Moghaddam,

Serra,

Gameiro da Silva

et al. 2023

Energies

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The global interest in nearly zero-energy buildings (NZEBs) has led to their establishment as mandatory building objectives in Europe for all new constructions starting in 2021. The principles outlined in the Energy Performance of Building Directive (EPBD) emphasize the significance of reducing energy demand through various energy efficiency measures to achieve NZEB status. Among these measures, the utilization of high-performance glazing systems plays a crucial role in ensuring natural light, ventilation, favorable solar gain, aesthetics, and positive psychological effects in buildings, while maintaining high energy performance and thermal comfort without burdening the budget or harming the environment. The use of increasingly larger glazing areas makes this topic of great relevance. Nevertheless, numerous studies frequently overlook certain crucial aspects of glazing systems in their assessments. This review study aims to assess different glazing solutions based on four critical perspectives called “EThCE”: Energy performance, thermal comfort, cost-effectiveness, and environmental impact, considering their interrelationships. Furthermore, the importance of adopting a comprehensive approach for selecting the optimal glazing solution for NZEBs is discussed. Additionally, the relationship between glazing systems and climate change is taken into account. Ultimately, the authors propose a comprehensive approach, including all the influential factors, to assist designers and homeowners in making informed decisions regarding glazing system selection for new NZEBs or NZEB retrofits in different situations.

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Section: Energy Performance Evaluation Of Glazing Systemsmentioning

confidence: 99%

Section: Energy Performance Evaluation Of Glazing Systemsmentioning

confidence: 99%

Comprehensive Review and Analysis of Glazing Systems towards Nearly Zero-Energy Buildings: Energy Performance, Thermal Comfort, Cost-Effectiveness, and Environmental Impact Perspectives

Moghaddam,

Serra,

Gameiro da Silva

et al. 2023

Energies

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“…Additionally, ref. [50] used a Monte Carlo simulation when assessing the impact of discount rates with a simulation. Meanwhile, ref.…”

Section: Economic Assessment: Uncertain Inputsmentioning

confidence: 99%

Roadmap to a Sustainable Energy System: Is Uncertainty a Major Barrier to Investments for Building Energy Retrofit Projects in Wide City Compartments?

2023

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Along the roadmap to a Sustainable Real Estate-Scape, energy retrofit campaigns on wide city compartments represent a pivotal task, where the importance of the collaboration between the public and private sectors is crucial. Energy retrofit programs on building assets are subject to multiple uncertainty factors (e.g., climate, energy-economy forecasts, etc.) that act as a primary barrier to investment in this field. This paper aims to discuss risk management techniques to understand better how to deal with this kind of uncertainty. The research specifically addresses the techniques of sensitivity analysis and Monte Carlo simulation, focusing first on the phase of variables selection and their probability definition, including climatic, environmental, energy, economic, financial, and stochastic parameters. In this article, it is suggested to include correlation coefficients in the input variables of risk analysis, preferring the two-dimension Monte Carlo simulation to its simple version, since the results are more reliable when separating aleatory from epistemic uncertainty; thus, the results are more reliable. Moreover, it is seen how a sensitivity analysis based on percentile variations of the inputs provides a more accurate representation of risk if compared to the most common sensitivity analysis based on percentage deviations of the inputs. Conducting a sensitivity analysis using percentile variations gives realistic and reliable results, reflecting the tailored definition of uncertainty around the inputs on the basis of specific market analyses or historical series.

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“…The issue of energy consumption during the operation of windows was discussed, among others, by Refs. 37,[40][41][42][43] .It can therefore be concluded that the purpose of LCA for windows is most often to compare the materials from which the frames are made, to determine the environmental impact of production, and to calculate heat savings during the operation of windows, especially the amount of heat required for the heating season 44,45 .Please note that windows with greater insulation can reduce the energy consumption needed to heat the building. In the long run, this decreases heating costs, and greenhouse gas emissions.…”

mentioning

confidence: 99%

“…The issue of energy consumption during the operation of windows was discussed, among others, by Refs. 37,[40][41][42][43] .…”

mentioning

confidence: 99%

Life cycle assessment (LCA) and energy assessment of the production and use of windows in residential buildings

Kowalczyk,

Twardowski,

Malinowski

et al. 2023

Sci Rep

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There is an observable scarcity of comprehensive research results comparing the environmental damage associated with both the production of windows and their subsequent operation. The environmental impact of the operation of windows depends on their thermal insulation parameters, and thus the amount of heat that must be generated to heat the building. The type of heating system and, above all, the type of fuel used to generate heat are also not without significance. Unfortunately, in Poland, a significant proportion of single-family houses operate on the fossil fuel heating system, including on coal and fuel oil. It is therefore important to present an environmental balance sheet of both the production and operation of windows for different variants of building heating. The purpose of the study was to determine: to what extent the manufacturing of windows of different construction and different insulation parameters affects the environment, to what extent does the negative environmental impact of the process of manufacturing with greater insulation compensate by the lower environmental impact related to savings on fuel (gas, coal, fuel oil) used to generate heat during the operation of windows. Three types of windows were selected for a detailed analysis: a triple-glazed aluminum construction, a double-glazed PVC construction and a triple-glazed PVC. The research results show that in the case of all impact categories, the greater environmental losses related to the improvement of the thermal insulation parameters of the windows at the production stage are fully compensated at the stage of their useful life, regardless of the type of fuel used to heat the buildings. Double-glazed PVC windows should be phased out of production due to significant environmental footprint associated with their operation.

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An optimized solution for retrofitting building façades: Energy efficiency and cost-benefit analysis from a life cycle perspective

Cited by 22 publications

References 29 publications

Comprehensive Review and Analysis of Glazing Systems towards Nearly Zero-Energy Buildings: Energy Performance, Thermal Comfort, Cost-Effectiveness, and Environmental Impact Perspectives

Comprehensive Review and Analysis of Glazing Systems towards Nearly Zero-Energy Buildings: Energy Performance, Thermal Comfort, Cost-Effectiveness, and Environmental Impact Perspectives

Roadmap to a Sustainable Energy System: Is Uncertainty a Major Barrier to Investments for Building Energy Retrofit Projects in Wide City Compartments?

Life cycle assessment (LCA) and energy assessment of the production and use of windows in residential buildings

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