ENGI1002- Topic 10

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6 Terms

1
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What is embodied energy?

Embodied energy is the energy needed to produce a material.

2
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Why is earth considered a closed system?

All waste stays on earth and resources are finite.

3
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What are the lifecycle stages?

  • Extraction

  • Manufacturing

  • Transport

  • Usage

  • End-of-life


4
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What are the four lifecycle assessment (LCA) stages?

  1. Scope

  2. Inventory

  3. Impact

  4. Interpretation


5
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What are some LCA limitations?

  • Expensive

  • Time consuming


6
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How is an eco audit done?

  • Reduce to 1 resource and 1 emission

  • Assess separately the phases of life

  • Base decisions on the results