Comparison of the Carbon Footprint in the Manufacturing of Cast Iron and Aluminum Engine Blocks

Objective: This study compares the environmental impacts generated by the manufacture of cast iron and aluminum engine blocks.   Theoretical Framework: The concepts used are energy expenditure and CO2 emissions throughout the useful life of the blocks, in addition to the relationships between the block's assembly configuration and its efficiency.   Method: The Ansys Granta EduPack software was used to extract and compare the values ​​sought, through in-house data collection, in six distinct stages, ranging from the extraction of the raw material to the process of discarding the parts.   Results and Discussion: The results found were presented, discussed and compared with works previously carried out by other authors. Aluminum presented the best results in general, due to its lightness, which reduces fuel consumption and, consequently, carbon dioxide emissions.   Research Implications: The use of aluminum can drastically mitigate the environmental impacts and pollution caused by the automobile industry, as this material derived from bauxite is also easily recyclable.   Originality/Value: This study uses software with recent data, showing more updated and improved results.