Life cycle assessment of the inclusion of phase change materials in lightweight buildings

Vega, Mariela; Llantoy, Noelia; Chàfer, Marta; Ushak, Svetlana; Cabeza, Luisa F.

doi:10.1016/j.est.2022.105903

Cited by 13 publications

(3 citation statements)

References 19 publications

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“…The results obtained in this study confirm that, under temperate climate conditions, a thermal storage wall modified with PCM can be an efficient solution in terms of energy and environment concerns. The results of the LCA analysis reported for warmer climates [56,57] indicated similar or higher possible reductions in carbon footprint, depending on the conditions of analysis.…”

Section: Life Cycle Impact Assessmentmentioning

confidence: 76%

The Effects of Using a Trombe Wall Modified with a Phase Change Material, from the Perspective of a Building’s Life Cycle

Żelazna,

Lichołai,

Krasoń

et al. 2023

Energies

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The increasing costs related to the use of primary energy carriers, and greater social awareness related to the need for energy saving, necessitate the use of renewable energy sources, including solar radiation. The Trombe wall (thermal storage wall—TSW) is an indirect passive solar energy system solution, aimed at obtaining, storing, and transferring thermal energy into buildings. However, there is no comprehensive information on the impact of the use of such solutions on environmental performance in the life cycle of buildings, especially those located in temperate climates. The aim of this paper is therefore to determine the environmental impact of the construction of barriers using phase change materials (PCM) from the perspective of the life cycle of a model building conforming to the current Polish energy standard (EP < 70 kWh/(m2∙yr)). The subject of the research is the structure of a TSW using phase change materials and a reference wall with a maximum overall heat transfer coefficient of 0.2 W/m2K. A comprehensive computational model of a residential building located in Rzeszów, Poland, was created, taking into account the thermal parameters of the analyzed structure of the wall and its operation under real, specific climatic conditions, as well as the environmental characteristics. High-quality input data (based on real, long-term measurements) were used to conduct a Life Cycle Assessment of the analyzed variants. As a result, the energetic and environmental efficiency of the analyzed thermal storage wall, from the perspective of the whole building’s life cycle, were assessed. According to the analyzed data, a TSW modified with paraffin enables the reduction of the energy requirements for heating by 11.3%, and the payback period of the environmental load does not exceed 1 (GWP) and 5 (IMPACT2002+) years, which were lower than the monitored period of operation.

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Section: Life Cycle Impact Assessmentmentioning

confidence: 76%

The Effects of Using a Trombe Wall Modified with a Phase Change Material, from the Perspective of a Building’s Life Cycle

Żelazna,

Lichołai,

Krasoń

et al. 2023

Energies

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“…LCA has already been employed to study the environmental impacts of CDs for the comparative study of different bottom-up procedures for the fabrication of CDs [37][38][39]. Some examples of LCAs related to our daily life include the sustainability evaluation of cheese [40], buildings [41], gravity dams [42], etc. In this study, we identify the most critical parameters giving rise to environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

Sustainability Assessment of Highly Fluorescent Carbon Dots Derived from Eucalyptus Leaves

Johny,

Pinto da Silva,

Pereira

et al. 2024

Environments

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Biomass-derived carbon dots (CDs) are gaining much interest in recent times, as they provide a sustainable option with abundant availability, a low cost and tunable luminescence. Herein, we report a simple green synthesis method to produce highly fluorescent CDs from Eucalyptus globulus leaves using the one-pot hydrothermal approach. The fabricated CDs exhibit strong blue fluorescence with an excitation and emission maxima of 320 nm and 445 nm, respectively. The highest quantum yield (QY) obtained was 60.7%. With the reported optical properties and biocompatibility, CDs can be looked at as a promising candidate for potential biosensing applications. Moreover, we employed a life cycle assessment (LCA) cradle-to-gate approach to study the environmental impacts of the synthesis strategy used for the fabrication of CDs. The results point out that citric acid is the main hotspot in CD synthesis, regarding environmental impacts in most categories. This justifies the introduction of biomass, which reduces the amount of citric acid, thus leading to a more sustainable synthesis strategy for fabricating CDs.

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“…This configuration inevitably creates a large thermal barrier between indoor thermal environment and the exterior wall, which is capable to reduce heat loss to ambient and keep the building thermal insulation. Though effect of ambient temperature swing on building performance is weakened, the indoor overheating problem will become even prominent in hot weather [21]. It has increasingly evolved into one of the tough difficulties existing in passive buildings, especially in PCM integrated envelopes.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of a dynamic insulation-phase change material system and its application in multilayer hollow walls

Zhang

Yuan

et al. 2023

Journal of Energy Storage

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Life cycle assessment of the inclusion of phase change materials in lightweight buildings

Cited by 13 publications

References 19 publications

The Effects of Using a Trombe Wall Modified with a Phase Change Material, from the Perspective of a Building’s Life Cycle

The Effects of Using a Trombe Wall Modified with a Phase Change Material, from the Perspective of a Building’s Life Cycle

Sustainability Assessment of Highly Fluorescent Carbon Dots Derived from Eucalyptus Leaves

Thermal performance of a dynamic insulation-phase change material system and its application in multilayer hollow walls

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