Short answer

Designers should focus on optimizing elevator energy consumption during operation and select materials with lower embodied carbon to achieve significant reductions in life cycle environmental impact.

Field
Sustainability
Source
Sustainability (2023)
Method
Life Cycle Assessment (LCA)
Evidence
Strong effect

The operational phase of an elevator accounts for the majority of its total life cycle carbon dioxide emissions, highlighting the critical importance of energy efficiency during use. This sustainability research insight is drawn from a 2023 study published in Sustainability. Using Life cycle assessment (lca), researchers explored how this design variable affects real-world outcomes. The key design takeaway: Designers should focus on optimizing elevator energy consumption during operation and select materials with lower embodied carbon to achieve significant reductions in life cycle environmental impact.

Study
SustainabilityRecentStrong effect

Elevator operational energy consumption is the largest contributor to life cycle carbon emissions.

The operational phase of an elevator accounts for the majority of its total life cycle carbon dioxide emissions, highlighting the critical importance of energy efficiency during use.

Sustainability · 2023

01

Key Findings

  • 01The operational and maintenance phase contributes the largest share (57.32%) of an elevator's life cycle carbon dioxide emissions.
  • 02Manufacturing accounts for a significant portion (41.31%) of the emissions.
  • 03The annual carbon dioxide emissions per ton·kilometer for elevators is approximately 27.18 kgCO2/t·km.
  • 04Key factors influencing emissions include electricity consumption, printed circuit boards, low-alloy steel, and chrome steel.
02

Application

Design takeaway

Designers should focus on optimizing elevator energy consumption during operation and select materials with lower embodied carbon to achieve significant reductions in life cycle environmental impact.

How to apply

When designing or specifying elevators, conduct a life cycle assessment to identify emission hotspots and prioritize energy-saving features and sustainable materials.

Project actions

  • 01When analyzing product life cycles, clearly define the boundaries of your assessment.
  • 02Use sensitivity analysis to pinpoint the most impactful stages or components for improvement.
03

Method & Evidence

AimTo quantify the life cycle carbon dioxide emissions of elevators and identify the key factors influencing these emissions to inform sustainable design strategies.
MethodLife Cycle Assessment (LCA)
ProcedureA comprehensive inventory analysis was conducted to measure carbon dioxide emissions from the manufacturing, installation, operation and maintenance, and demolition and scraping stages of an elevator. Sensitivity analysis was performed to identify the primary influencing factors, and a new assessment indicator, annual carbon dioxide emissions per ton·kilometer, was proposed.
ContextBuilding infrastructure and vertical transportation systems.

Variables

IV["Manufacturing processes","Installation methods","Operational energy consumption","Maintenance practices","Demolition and disposal methods"]
DV["Life cycle carbon dioxide emissions"]
CV["Elevator type","Usage patterns","Geographical location (influencing energy mix)"]
04

Strengths & Limitations

Strengths

  • +Comprehensive life cycle approach.
  • +Introduction of a novel assessment indicator (kgCO2/t·km).

Limitations

The accuracy of the results depends heavily on the quality and availability of data for each stage of the life cycle.

Reliability & validity

The reliability of the findings is dependent on the accuracy of the input data for each life cycle stage. Validity is enhanced by the use of sensitivity analysis to confirm the significance of key factors.

Think critically

How might the findings on elevator carbon emissions differ in regions with predominantly renewable energy sources compared to those reliant on fossil fuels?

05

Design Principles

"Minimize operational energy consumption and embodied carbon throughout the product life cycle."

Understanding the life cycle impacts of products like elevators is crucial for designers aiming to create more sustainable solutions. Focusing on the operational phase allows for targeted interventions that can significantly reduce a product's environmental footprint.

06

What This Means for Your Design

When you design things like elevators, think about all the carbon dioxide they create from when they're made, used, and thrown away. Most of the carbon comes from the energy they use while running.

How to use in your project

  • 1.Reference this study when discussing the life cycle assessment of a product and justifying the focus on operational efficiency or material selection.
07

Add to My Project

08

Quick Cite

Paragraph starter

This research highlights that the operational phase of elevators is the primary contributor to their life cycle carbon dioxide emissions (57.32%), underscoring the critical need for energy efficiency in design. Consequently, design strategies should prioritize reducing energy consumption during product use to achieve substantial environmental benefits.

09

Source

Sustainability

Life Cycle Carbon Dioxide Emissions and Sensitivity Analysis of Elevators

journal · 2023

View source

Questions About This Research

What does the research say about elevator operational energy consumption is the largest contributor to life cycle carbon emissions?
Designers should focus on optimizing elevator energy consumption during operation and select materials with lower embodied carbon to achieve significant reductions in life cycle environmental impact. Evidence: Sustainability (2023).
Why does "Elevator operational energy consumption is the largest contributor to life cycle carbon emissions." matter for design?
Understanding the life cycle impacts of products like elevators is crucial for designers aiming to create more sustainable solutions. Focusing on the operational phase allows for targeted interventions that can significantly reduce a product's environmental footprint.
How can designers apply this research?
Designers should focus on optimizing elevator energy consumption during operation and select materials with lower embodied carbon to achieve significant reductions in life cycle environmental impact.
What were the main findings?
The operational and maintenance phase contributes the largest share (57.32%) of an elevator's life cycle carbon dioxide emissions.. Manufacturing accounts for a significant portion (41.31%) of the emissions.. The annual carbon dioxide emissions per ton·kilometer for elevators is approximately 27.18 kgCO2/t·km.. Key factors influencing emissions include electricity consumption, printed circuit boards, low-alloy steel, and chrome steel.
What research method was used?
Life Cycle Assessment (LCA).
How strong is the evidence?
Evidence strength is rated Strong effect, based on a 2023 journal from Sustainability.
What should I do differently in my next project?
When designing or specifying elevators, conduct a life cycle assessment to identify emission hotspots and prioritize energy-saving features and sustainable materials.
What are the limitations?
The study's findings may vary depending on specific elevator models, usage patterns, and regional energy grids.