Thermodynamic and environmental sustainability analysis of electricity production from an integrated cogeneration system based on residual biomass: A life cycle approach

2021 ◽  
Vol 295 ◽  
pp. 117054
Author(s):  
Mauro Prestipino ◽  
Fabio Salmeri ◽  
Filippo Cucinotta ◽  
Antonio Galvagno
Keyword(s):  
Life Cycle ◽  
Environmental Sustainability ◽  
Electricity Production ◽  
Life Cycle Approach ◽  
Residual Biomass ◽  
Sustainability Analysis ◽  
Cogeneration System

scholarly journals Environmental Sustainability of Building Retrofit through Vertical Greening Systems: A Life-Cycle Approach

2021 ◽  
Vol 13 (9) ◽  
pp. 4886
Author(s):  
Katia Perini ◽  
Fabio Magrassi ◽  
Andrea Giachetta ◽  
Luca Moreschi ◽  
Michela Gallo ◽  
...  
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Environmental Sustainability ◽  
Urban Areas ◽  
Baseline Scenario ◽  
Life Cycle Approach ◽  
Complete Life Cycle ◽  
Wide Range ◽  
Use Phase ◽  
Vertical Greening

Urban greening provides a wide range of ecosystem services to address the main challenges of urban areas, e.g., carbon sequestration, evapotranspiration and shade, thermal insulation, and pollution control. This study evaluates the environmental sustainability of a vertical greening system (VGS) built in 2014 in Italy, for which extensive monitoring activities were implemented. The life-cycle assessment methodology was applied to quantify the water–energy–climate nexus of the VGS for 1 m2 of the building’s wall surface. Six different scenarios were modelled according to three different end-of-life scenarios and two different useful lifetime scenarios (10 and 25 years). The environmental impact of global-warming potential and generated energy consumption during the use phase in the VGS scenarios were reduced by 56% in relation to the baseline scenario (wall without VGS), and showed improved environmental performance throughout the complete life cycle. However, the water-scarcity index (WSI) of the VGS scenarios increased by 42%. This study confirms that the installation of VGSs offers a relevant environmental benefit in terms of greenhouse-gas emissions and energy consumption; however, increased water consumption in the use phase may limit the large-scale application of VGSs.

Life Cycle Assessment of Modern Wind Power Plants

2010 ◽  
Author(s):  
Hannes M. Hapke ◽  
Karl R. Haapala ◽  
Zhaohui Wu ◽  
Ted K. A. Brekken
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Wind Power ◽  
Environmental Sustainability ◽  
Power Plants ◽  
Wind Farm ◽  
Fossil Fuels ◽  
Environmental Benefits ◽  
Electricity Production ◽  
Wind Power Plants

Power generation for the existing electrical grid is largely based on the combustion of fossil fuels. Global concerns have been raised regarding the environmental sustainability of the system due to life cycle impacts, including land losses from fuel extraction and impacts of combustion emissions. An approach to reduce carbon emissions of fossil fuel-based energy employs the conversion of wind energy to electrical energy. The work presented describes modern wind power plants and provides an environmental assessment of a representative wind park from a life cycle perspective. The empirical analysis uses commercially available data, as well as information from an existing wind power plant. The life cycle assessment (LCA) study for a modern wind farm in the northwestern U.S. found that environmental benefits of avoiding typical electricity production greatly outweigh the impacts due to wind turbine construction and maintenance. Effects of component reliability, varying capacity factors, and energy portfolio are explored.

scholarly journals Comparing The Environmental Impacts Of Diesel Generated Electricity With Hybrid Diesel-Wind Electricity For Off Grid First Nation Communities In Ontario : Incorporating A Life Cycle Approach

2021 ◽  
Author(s):  
Jade Schofield
Keyword(s):  
Life Cycle ◽  
Wind Energy ◽  
Wind Turbine ◽  
Environmental Impacts ◽  
Energy Systems ◽  
First Nation ◽  
Electricity Production ◽  
Life Cycle Approach ◽  
Energy Potential ◽  
Wind Energy Potential

The cost of diesel is rapidly increasing and the environmental impacts associated with diesel fuel combustion are substantial. Hybrid diesel-wind energy was found to be a feasible energy alternative for off-grid electricity production in seven First Nation communities of Ontario. Based on calculating the wind energy potential for a proposed 250 KW wind turbine and determining the amount of diesel that the wind turbine could replace hybrid diesel-wind has the potential to reduce diesel consumption and environmental impacts associated with the current diesel energy systems by 12-46% depending on the wind energy potential. Results of a life cycle analysis comparing the environmental impacts of the proposed hybrid diesel-wind system to the diesel system through the use of GaBi software show that global warming potential is the largest impact for both energy systems, but hybrid diesel-wind can significantly reduce the overall environmental impact caused by off grid diesel electricity generation.

scholarly journals Comparing The Environmental Impacts Of Diesel Generated Electricity With Hybrid Diesel-Wind Electricity For Off Grid First Nation Communities In Ontario : Incorporating A Life Cycle Approach

2021 ◽  
Author(s):  
Jade Schofield
Keyword(s):  
Life Cycle ◽  
Wind Energy ◽  
Wind Turbine ◽  
Environmental Impacts ◽  
Energy Systems ◽  
First Nation ◽  
Electricity Production ◽  
Life Cycle Approach ◽  
Energy Potential ◽  
Wind Energy Potential

The cost of diesel is rapidly increasing and the environmental impacts associated with diesel fuel combustion are substantial. Hybrid diesel-wind energy was found to be a feasible energy alternative for off-grid electricity production in seven First Nation communities of Ontario. Based on calculating the wind energy potential for a proposed 250 KW wind turbine and determining the amount of diesel that the wind turbine could replace hybrid diesel-wind has the potential to reduce diesel consumption and environmental impacts associated with the current diesel energy systems by 12-46% depending on the wind energy potential. Results of a life cycle analysis comparing the environmental impacts of the proposed hybrid diesel-wind system to the diesel system through the use of GaBi software show that global warming potential is the largest impact for both energy systems, but hybrid diesel-wind can significantly reduce the overall environmental impact caused by off grid diesel electricity generation.

scholarly journals Environmental and economic performance evaluation of municipal wastewater treatment plants in India: a life cycle approach

2019 ◽  
Vol 79 (6) ◽  
pp. 1102-1112 ◽  
Author(s):  
Sheetal Kamble ◽  
Anju Singh ◽  
Absar Kazmi ◽  
Markus Starkl
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Life Cycle Cost ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Electricity Production ◽  
Life Cycle Approach ◽  
Effluent Reuse ◽  
Treated Effluent

Abstract Life cycle assessment (LCA) was used to evaluate the environmental impacts associated with wastewater treatment plants (WWTPs). Moreover, an economic evaluation was also addressed using life cycle cost (LCC) approach. Emissions associated with electricity production for operating the WWTPs, emissions from the treated effluent and hazardous heavy metals emissions have been identified as the main contributors to the overall environmental impact. Among the WWTPs considered, soil biotechnology (SBT) obtained the lowest environmental impact in all the evaluated impact categories, except for eutrophication potential. While the aerated lagoons (AL) system presented the worst results due to the high electricity and chemicals consumption. Moreover, the results obtained from the evaluation of benefit from treated effluent reuse clearly indicate that there is a drop in the toxicity potential when the rate of effluent reuse is increased. On the other hand, the present worth of SBT was estimated to be Rs. 40 million/millions of litres per day (MLD) which is the highest as compared to other technologies. Membrane bioreactor (MBR) is the second highest (Rs. 24.7 million/MLD), which is mainly contributed by civil, electro-mechanical and membrane cost. The results of LCA and LCC provide specific insights about the factors which play a major role during the life cycle of wastewater treatment technology and its associated impacts.

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