A comprehensive life cycle analysis of cofiring algae in a coal power plant as a solution for achieving sustainable energy

Murat Kucukvar and Omer Tatari

Energy, 2011, vol. 36, issue 11, 6352-6357

Abstract: Algae cofiring scenarios in a 360 MW coal power plant were studied utilizing an ecologically based hybrid life cycle assessment methodology. The impacts on the ecological system were calculated in terms of cumulative mass, energy, industrial exergy, and ecological exergy. The environmental performance metrics, including efficiency, loading, and renewability ratios were also quantified to assess the sustainability of cofiring scenarios from a holistic perspective. The analysis results revealed that cumulative mass and ecological exergy consumption were higher for algae cofiring compared to single coal firing due to high material and energy inputs for the algae cultivation. On the contrary, total energy and industrial exergy utilization were reduced with an increasing share of algae cofiring where algae is dried with solar energy. Additionally, natural gas dried algae cofiring scenarios had a lower renewability ratio in comparison with single coal firing. The results of this study are vital for the policy makers to decide on more environmentally friendly algae cofiring options by considering the potential impacts on ecological system.

Keywords: Energy and the environment; Life cycle assessment; Algae cultivation; Coal power plant; Cofiring; Sustainability (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (17)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:36:y:2011:i:11:p:6352-6357

DOI: 10.1016/j.energy.2011.09.039

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