Implementation of Life Cycle Assessment Method (LCA) and Analytical Hierarchy Process (AHP) to Determine the Development of Recycling Unit of Waste Water in Grati CCPP PT Indonesia Power up Perak Grati

2018 ◽  
Vol 874 ◽  
pp. 18-26
Author(s):  
Mila Tartiarini ◽  
Udisubakti Ciptomulyono
Keyword(s):  
Waste Water ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Power Plant ◽  
Power Plants ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Service Water ◽  
The Impact

Waste water result from operating activities of Grati Combined Cycled Power Plant (CCPP) is significant amount and has potentially to be reutilized. A recycling unit as the pilot project has been applied in Grati CCPP PT Indonesia Power UP Perak Grati for capacity 4 tons/hour of service water product. Development plant of Grati CCPP up to year 2018 will produce more amounts of waste water, and potentially increase the pollution load in the unit area.Considering the use of alternative development for unit recycled waste water effluent from the Waste Water Treatment Plant (WWTP) has implications to the environmental and cost aspects, therefore a proper assessment to decide the alternative is needed. Proposed method of Life Cycle Assessment (LCA) is to measure the impact to the environment. And the Cost Benefit Analysis (CBA) is to measure the economic criteria. To integrate the results of the two methods, it is used and calculated by using Hierarcy Analytical Process (AHP).The result of the study about the environmental impact and economic analysis, the development of the recycling unit is required to process all waste water produced by power plants. Focus group by experts in power plant operation using AHP is based on the results of SimaPro 7.0 and CBA. The most beneficial result is with a single score of 0.2314 Pt / 1 ton of water service, the payback period of 2.5 years, 37.5% IRR and NPV US$ 88,577.23 and the MMF-RO unit for total capacity of 14 tons/hour has become the most alternative of development.

scholarly journals Adoption of Photovoltaic Systems Along a Sure Path: A Life-Cycle Assessment (LCA) Study Applied to the Analysis of GHG Emission Impacts

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2806 ◽  
Author(s):  
Gabriel Constantino ◽  
Marcos Freitas ◽  
Neilton Fidelis ◽  
Marcio Pereira
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Power Plants ◽  
Greenhouse Gas Emission ◽  
Great Influence ◽  
Electric Energy ◽  
Renewable Sources ◽  
Pv Systems ◽  
Payback Time ◽  
High Share

The expansion of photovoltaic solar energy in the world is significant. However, its contribution to decreases in greenhouse gases (GHG) is not an absolute guarantee. In this context, it is necessary to evaluate its benefits in advance, considering the structure of the electric energy supply matrix of the country producing the photovoltaic solar system, as well as the country where the technology will be implemented. This study evaluates the adoption of renewable sources for electric power generation in a country with a high share of renewable energy. A life-cycle assessment (LCA) of a set of multi-Si photovoltaic (PV) systems installed in the Brazilian northeast (NE), was carried out. The actual generation data of 10 plants totaling 1.1 MWp installed capacity were evaluated during two years of operation. Energy payback time (EPBT), greenhouse gas emission rate (GHGe-rate), and emission payback time were calculated. The great influence of the electric matrix characteristics of the country manufacturing PV systems was evidenced in the results. The interconnected Brazilian electrical system had a 2020 projected GHGe-rate of 63.9 g CO2/kWh, while the results of 70% of the photovoltaic solar power plants (PSPS) assessed herein exhibit higher GHGe-rates. Thus, in countries where the electric matrix comprises a high share of renewable sources, such as Brazil, the incentive to use PV systems manufactured in nations whose electric matrix registers high emission factors should be well evaluated in terms of the impacts of GHG concentrations and the promotion of sustainable development, in order to avoid indirect import of significant amounts of carbon embedded in the systems.

Life cycle assessment of natural gas power plants in Thailand

2009 ◽  
Vol 14 (4) ◽  
pp. 354-363 ◽  
Author(s):  
Kamalaporn Phumpradab ◽  
Shabbir H. Gheewala ◽  
Masayuki Sagisaka
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Natural Gas ◽  
Power Plants

scholarly journals Environmental impacts of irrigated and rain-fed barley production in Iran using life cycle assessment (LCA)

2017 ◽  
Vol 15 (2) ◽  
pp. e0204 ◽  
Author(s):  
Ehsan Houshyar
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Electricity Generation ◽  
Power Plants ◽  
Conservation Tillage ◽  
Alternative Systems ◽  
Toxicity Potential ◽  
Alternative Scenarios ◽  
Lca Results

Current intensive grain crops production is often associated with environmental burdens. However, very few studies deal with the environmental performance of both current and alternative systems of barley production. This study was undertaken to evaluate energy consumption and environmental impacts of irrigated and rain-fed barley production. Additionally, three alternative scenarios were examined for irrigated barley fields including conservation tillage and biomass utilization policies. The findings showed that around 25 GJ/ha energy is needed in order to produce 2300 kg/ha irrigated barley and 13 GJ/ha for 1100 kg/ha rain-fed barley. Life cycle assessment (LCA) results indicated that irrigated farms had more environmental impacts than rain-fed farms. Electricity generation and consumption had the highest effect on the abiotic depletion potential, human toxicity potential, freshwater and marine aquatic ecotoxicity potential. However, alternative scenarios revealed that using soil conservation tillage systems and biomass consumption vs. gas for electricity generation at power plants can significantly mitigate environmental impacts of irrigated barley production similar to the rain-fed conditions while higher yield is obtained.

scholarly journals Life cycle assessment analysis of supercritical coal power units

2010 ◽  
Vol 31 (3) ◽  
pp. 115-130
Author(s):  
Andrzej Ziębik ◽  
Krzysztof Hoinka ◽  
Marcin Liszka
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Power Unit ◽  
Carbon Capture ◽  
Power Plants ◽  
Carbon Capture And Storage ◽  
Ecological Factors ◽  
Energy Component ◽  
Cumulative Energy ◽  
Coal Power

Life cycle assessment analysis of supercritical coal power unitsThis paper presents the Life Cycle Assessment (LCA) analysis concerning the selected options of supercritical coal power units. The investigation covers a pulverized power unit without a CCS (Carbon Capture and Storage) installation, a pulverized unit with a "post-combustion" installation (MEA type) and a pulverized power unit working in the "oxy-combustion" mode. For each variant the net electric power amounts to 600 MW. The energy component of the LCA analysis has been determined. It describes the depletion of non-renewable natural resources. The energy component is determined by the coefficient of cumulative energy consumption in the life cycle. For the calculation of the ecological component of the LCA analysis the cumulative CO2emission has been applied. At present it is the basic emission factor for the LCA analysis of power plants. The work also presents the sensitivity analysis of calculated energy and ecological factors.

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