Energy Consumption and Carbon Footprint of Secondary Aluminum Cast House WENJING WEI TTMVM Supervised by Docent Weihong.

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Energy Consumption and Carbon Footprint of Secondary Aluminum Cast House WENJING WEI TTMVM Supervised by Docent Weihong Yang 1

1 Background: Aluminum is the second largest metal market Highly recycled material Objectives: Energy and CO2 per ton of aluminum production, Solution to increase energy efficiency and decrease carbon footprint Developing a software to make energy efficiency indicators OBJECTIVES Problem: What’s carbon footprint of secondary aluminum product How to improve energy efficiency and decrease greenhouse gas

RESULTS&DISCUSSION Higher energy efficiency Decrease heat loss ( logistic, insulation etc.) Waste heat recovery( utilize exhaust gas, cooling water heat for pre-heating loads)

Lower environmental impact: Charge more aluminum scrap instead of primary ingot Applying nuclear power generated electricity ( much lower carbon footprint compare to fuel) Carbon footprint Melting Furnace Type Raw Material RESULTS&DISCUSSION