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Sustainable development

Comprehensive Analysis of Building Engineering Research Reveals Insights into Carbon Neutrality

Strategic Insights

— 1 min read

Researchers from Tianjin University conducted a comprehensive study on building engineering, analyzing the potential for carbon neutrality in the building sector. According to the study, achieving carbon-neutral targets in building construction requires reaching green building and ultra-low energy building (ULEB) goals. The study utilized a life cycle assessment (LCA) method to analyze the carbon emission reduction potential and economic feasibility of these targets.

Key Takeaways:

  • The study proposed two progressive energy-saving targets for buildings in China: green building and ULEB.
  • The carbon emission for green building and ULEB were calculated to be 5583 kgCO2eq/m2 and 3890 kgCO2eq/m2, respectively, with corresponding carbon emission reduction potential (CERP) of 17.6% and 42.6% for the whole 50 years building lifespan.
  • The ULEB scenario demonstrated a higher operational carbon emission reduction rate but resulted in more embodied carbon emission.
  • The incremental cost payback period (ICPP) for the ULEB scenario was 22.1 years, 8.7 years more than the green building scenario.
  • The CERP and ICPP values for green building were within a relatively medium level, while the ICPP for ULEB was relatively high, making it a less preferred target considering economic factors.
  • The study provided a reference for the government to develop a carbon emission roadmap and policy for building retrofit in cold climate zones.
  • The research has been peer-reviewed and published in the Journal of Building Engineering.

Statistics:

  • Carbon emission for green building: 5583 kgCO2eq/m2
  • Carbon emission for ULEB: 3890 kgCO2eq/m2
  • CERP for green building: 17.6%
  • CERP for ULEB: 42.6%
  • ICPP for ULEB: 22.1 years
  • ICPP for green building: 13.4 years (difference: 8.7 years)
  • CERP and ICPP values for green building: relatively medium level
  • CERP and ICPP values for ULEB: relatively high

Sources:

  • Study On Comprehensive Whole Life Carbon Emission Reduction Potential and Economic Feasibility Impact Based On Progressive Energy-saving Targets: a Typical Renovated Ultra-low Energy Office, Journal of Building Engineering, 2022, Volume 58, Article 105029, Elsevier, Radarweg 29, 1043 Nx Amsterdam, Netherlands.
  • NewsRx. Study Results from Tianjin University Provide New Insights into Building Engineering (Study On Comprehensive Whole Life Carbon Emission Reduction Potential and Economic Feasibility Impact Based On Progressive Energy-saving Targets: a Typical ...), Global Warming Focus, November 28, 2022, p 356.

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