Articles producció científica> Enginyeria Química

Low-energy buildings in combination with grid decarbonization, life cycle assessment of passive house buildings in Northern Ireland

  • Identification data

    Identifier: imarina:9245938
    Authors:
    Norouzi MColclough SJiménez LGavaldà JBoer D
    Abstract:
    This paper implements a Life Cycle Assessment of several low-energy/passive house buildings located in Northern Ireland. This work aims (i) to assess the environmental performance of the buildings and (ii) to evaluate the effect of electricity decarbonization on the dwellings’ global warming potential (GWP). Three different future electricity mix scenarios have been used and compared to a static scenario where the current electricity mix remains constant. The LCA results of the static scenario reveal that applying passive-house standards could reduce the impact of dwellings while it does not necessarily provide a positive environmental outcome. The building operation phase contributed the most to the environmental impact, while negligible impact comes from the end-of-life stage. The electricity decarbonization leads to a significant reduction of GWP in all cases, with the highest value achieved for the passive house using the highest share of electricity, 58%-70% GWP reduction compared to the static scenario. Moreover, electricity decarbonization increases the relative share of the production stage to the overall building emission. Therefore, close attention should be paid to construction material selection in any effort aiming to achieve further environmental benefits. The buildings' environmental and operational energy performances were also compared to the RIBA 2030 Climate Challenge.
  • Others:

    Author, as appears in the article.: Norouzi M; Colclough S; Jiménez L; Gavaldà J; Boer D
    Department: Enginyeria Química Enginyeria Mecànica
    URV's Author/s: Boer, Dieter-Thomas / Gavaldà Casado, Jordi / Jiménez Esteller, Laureano
    Keywords: Renewable energy Life cycle assessment Environmental impacts Energy-efficient building Electricity mix
    Abstract: This paper implements a Life Cycle Assessment of several low-energy/passive house buildings located in Northern Ireland. This work aims (i) to assess the environmental performance of the buildings and (ii) to evaluate the effect of electricity decarbonization on the dwellings’ global warming potential (GWP). Three different future electricity mix scenarios have been used and compared to a static scenario where the current electricity mix remains constant. The LCA results of the static scenario reveal that applying passive-house standards could reduce the impact of dwellings while it does not necessarily provide a positive environmental outcome. The building operation phase contributed the most to the environmental impact, while negligible impact comes from the end-of-life stage. The electricity decarbonization leads to a significant reduction of GWP in all cases, with the highest value achieved for the passive house using the highest share of electricity, 58%-70% GWP reduction compared to the static scenario. Moreover, electricity decarbonization increases the relative share of the production stage to the overall building emission. Therefore, close attention should be paid to construction material selection in any effort aiming to achieve further environmental benefits. The buildings' environmental and operational energy performances were also compared to the RIBA 2030 Climate Challenge.
    Thematic Areas: Mechanical engineering Materiais Interdisciplinar Geociências Engineering, civil Engenharias iv Engenharias iii Engenharias ii Engenharias i Energy & fuels Electrical and electronic engineering Construction & building technology Civil and structural engineering Ciências ambientais Building and construction Arquitetura, urbanismo e design Arquitetura e urbanismo
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: dieter.boer@urv.cat laureano.jimenez@urv.cat jordi.gavalda@urv.cat
    Author identifier: 0000-0002-5532-6409 0000-0002-3186-7235 0000-0002-3702-0422
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/pii/S0378778822001074
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Energy And Buildings. 261
    APA: Norouzi M; Colclough S; Jiménez L; Gavaldà J; Boer D (2022). Low-energy buildings in combination with grid decarbonization, life cycle assessment of passive house buildings in Northern Ireland. Energy And Buildings, 261(), -. DOI: 10.1016/j.enbuild.2022.111936
    Article's DOI: 10.1016/j.enbuild.2022.111936
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Building and Construction,Civil and Structural Engineering,Construction & Building Technology,Electrical and Electronic Engineering,Energy & Fuels,Engineering, Civil,Mechanical Engineering
    Renewable energy
    Life cycle assessment
    Environmental impacts
    Energy-efficient building
    Electricity mix
    Mechanical engineering
    Materiais
    Interdisciplinar
    Geociências
    Engineering, civil
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Energy & fuels
    Electrical and electronic engineering
    Construction & building technology
    Civil and structural engineering
    Ciências ambientais
    Building and construction
    Arquitetura, urbanismo e design
    Arquitetura e urbanismo
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