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Showing 2 results for Life Cycle Assessment (lca)
N Kargari, R Mastouri,
Volume 13, Issue 2 (7-2010)
Abstract
There are no power generation systems without environmental impacts. Environmental impacts are in all stages of power generation process including resource extraction, facilities production, material transportation, power use and waste disposal. Some of the environmental impacts are air pollution (pollutant emissions like PM-10, SO2, NOx, CO, toxic pollutants such as Hg and etc.), greenhouse gas (GHG) emissions, land use, impact on ecosystems (fauna and flora) and impact on human health. Life cycle assessment (LCA) methodology could characterize environmental impacts in all stages of life cycle of power generation. Different power generation systems could be comprised by LCA too. Considering the importance of GHG emission and climate change, this paper attempts to comprise GHG emissions in life cycle of different kinds of power plants (including fossil fuels power plants, nuclear power plants, photovoltaic power plants, wind power plants, hydropower and biomass power plants).
Narges Karegari, Reza Mastoori,
Volume 14, Issue 4 (1-2012)
Abstract
Life cycle assessment (LCA) is an effective tool for decision-making, which could assess and analysis the environmental impacts. Also, appropriate approaches with less environmental impacts could be indicated by LCA. There are some procedures and plans in order to strengthening LCA, which could quantify the environmental impacts of a product or process in the whole of life cycle. One of these strengthening methods is EPS (Environmental Priority Strategies). Environmental impacts could be calculated and compared for different emissions, resources and energy use by EPS system. In order to comparing environmental impacts of resource use, transportation and raw material use, environmental impacts should be quantified. The unit for comparing environmental impact in EPS system is ELU (Environmental Load Unit). In this paper, environmental impacts of air pollutants in life cycle of a combined cycle power plant have been quantified by EPS. The results show that the most important environmental impact based on ELU are respectively CO2, CH4, PM, NOx and SO2.
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