kc-unit 12 - LIFE CYCLE ASSESSMENT Life Cycle Assessment...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
LIFE CYCLE ASSESSMENT Life Cycle Assessment (LCA) is a standardized technique for measuring and comparing the environmental consequences of providing, using and disposing of a product or a service. LCAs have a number of interrelated stages: Goal Definition and Scoping, Inventory Analysis (LCI), Impact Assessment and Interpretation.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
LIFE CYCLE ASSESSMENT (APPLICATION) LCA users attempt to trace back to the environment all of the resources consumed at all stages in the manufacture, use and disposal of products. The methodology considers all of the emissions to air, water and land at each of these stages. In combination, data on each stage provide an inventory of exchanges of substances between the product and the environment associated with the entire life cycle of the product, from the 'cradle to the grave'.
Background image of page 2
THE JUSTIFICATION FOR USING LCA For the purpose of comparison and decision making, the best way of considering the advantages of one product over another (assuming they provide the same function) is to compare environmental footprints (cradle to grave) of each product. LCA allows us to do this.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
LCA PROCESS
Background image of page 4
LIFE CYCLE ASSESSMENT OF TWO PRODUCTS/METHODS The purpose of the study is to provide a comparison of the environmental footprints for two hand drying methods: Paper Towels and An Electric Hand Air Drier (Manufactured by Airdri and supplied by Bobrick) The environmental profile was generated by identifying and quantifying the 'cradle-to-grave‘ environmental consequences associated with the two product systems.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
THE SELECTED PRODUCTS/METHODS Drier The drier system involves: the manufacture and supply of the drier (plus packaging), the consumption of electricity for the drying of hands the disposal of the drier at the end of its useful life. Paper Towels The paper towel approach to drying hands requires: the manufacture, supply and disposal (at the end of their useful life) of: a towel dispenser (plus packaging) a bin for disposal of towels (plus packaging) bags for use in the bin (plus packaging) paper towels (plus packaging).
Background image of page 6
WHAT IS EXPECTED FROM THE LCA RESULTS? The LCA results can be used: 1. to provide an indication as to which system places less burden on the environment 1. as a scoping study for further more detailed assessment of the products.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The goal of this study is to quantify and compare the environmental profiles of the paper towel system and the hand air drier system. The scope defines the boundaries of the system to be studied, the data required and any assumptions and limitations.
Background image of page 8
In this study, readily available data regarding the production of the materials and electricity have been used. No data has been sourced regarding the production of components
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 38

kc-unit 12 - LIFE CYCLE ASSESSMENT Life Cycle Assessment...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online