scholarly journals Life Cycle Assessment of Secondary Mangrove Forest in Bintuni Bay,West Papua, Indonesia

2017 ◽  
Vol 12 (3) ◽  
pp. 616-627
Author(s):  
Rocky Marius de Ramos ◽  
Michael Lochinvar S. Abundo ◽  
Evelyn B. Taboada
Keyword(s):  
Life Cycle Assessment ◽  
Renewable Energy ◽  
Life Cycle ◽  
Energy Use ◽  
Wood Products ◽  
Forest Residues ◽  
Power Sources ◽  
West Papua ◽  
Environment Study ◽  
The Impact

The life cycle assessment is conducted in order to assess the impact of mangrove woodchip production in Bintuni bay, West Papua Indonesia on the environment. Study includes the analysis of non-renewable energy use (MJ), global warming potential or carbon footprint (kg CO2), acidification potential (kg SO2) and ozone creation potential (kg O3) of mangrove logging, processing and shipment. Mangrove woodchip production consumes 960 MJ of non-renewable energy and gives out 59.59 kg CO2, .383 kg SO2 and 30.39 kg O3, which is the lowest in comparison with other wood products. Mangrove processing incur less fuel because it is delivered in bulk to the processing area via barges in comparison to other wood products The current shipping of mangrove woodchips to customers has the greatest environmental impact because of the use of bunker fuel. The processing of mangrove woodchips used diesel exclusively for fuel in its power sources. Forest residues from logging can be a source of renewable fuel and may also be another source of new products.

scholarly journals Life Cycle Assessment on Different Synthetic Routes of ZIF-8 Nanomaterials

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4998
Author(s):  
Vasileios Ntouros ◽  
Ioannis Kousis ◽  
Dimitra Papadaki ◽  
Anna Laura Pisello ◽  
Margarita Niki Assimakopoulos
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Environmental Sustainability ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Research Activity ◽  
Synthetic Routes ◽  
The Impact

In the last twenty years, research activity around the environmental applications of metal–organic frameworks has bloomed due to their CO2 capture ability, tunable properties, porosity, and well-defined crystalline structure. Thus, hundreds of MOFs have been developed. However, the impact of their production on the environment has not been investigated as thoroughly as their potential applications. In this work, the environmental performance of various synthetic routes of MOF nanoparticles, in particular ZIF-8, is assessed through a life cycle assessment. For this purpose, five representative synthesis routes were considered, and synthesis data were obtained based on available literature. The synthesis included different solvents (de-ionized water, methanol, dimethylformamide) as well as different synthetic steps (i.e., hours of drying, stirring, precursor). The findings revealed that the main environmental weak points identified during production were: (a) the use of dimethylformamide (DMF) and methanol (MeOH) as substances impacting environmental sustainability, which accounted for more than 85% of the overall environmental impacts in those synthetic routes where they were utilized as solvents and as cleaning agents at the same time; (b) the electricity consumption, especially due to the Greek energy mix which is fossil-fuel dependent, and accounted for up to 13% of the overall environmental impacts in some synthetic routes. Nonetheless, for the optimization of the impacts provided by the energy use, suggestions are made based on the use of alternative, cleaner renewable energy sources, which (for the case of wind energy) will decrease the impacts by up to 2%.

scholarly journals Life Cycle Assessment of an Office Building Based on Site-Specific Data

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2588 ◽  
Author(s):  
Peter Ylmén ◽  
Diego Peñaloza ◽  
Kristina Mjörnell
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Energy Use ◽  
Office Building ◽  
Impact Categories ◽  
Time Data ◽  
Specific Data ◽  
Environmental Impact Categories ◽  
The Impact

Life cycle assessment (LCA) is an established method to assess the various environmental impacts associated with all the stages of a building. The goal of this project was to calculate the environmental releases for a whole office building and investigate the contribution in terms of environmental impact for different parts of the building, as well as the impact from different stages of the life cycle. The construction process was followed up during production and the contractors provided real-time data on the input required in terms of building products, transport, machinery, energy use, etc. The results are presented for five environmental impact categories and, as expected, materials that constitute the main mass of the building and the energy used during operation contribute the largest share of environmental impact. It is usually difficult to evaluate the environmental impact of the materials in technical installations due to the lack of data. However, in this study, the data were provided by the contractors directly involved in the construction and can, therefore, be considered highly reliable. The results show that materials for installations have a significant environmental impact for four of the environmental impact categories studied, which is a noteworthy finding.

scholarly journals Environmental Life Cycle Assessment of Grid-Integrated Hybrid Renewable Energy Systems in Northern Nigeria

2019 ◽  
Vol 11 (21) ◽  
pp. 5889 ◽  
Author(s):  
Ismail Abubakar Jumare ◽  
Ramchandra Bhandari ◽  
Abdellatif Zerga
Keyword(s):  
Life Cycle Assessment ◽  
Renewable Energy ◽  
Life Cycle ◽  
Environmental Sustainability ◽  
Energy Systems ◽  
Northern Nigeria ◽  
Renewable Energy Systems ◽  
Toxicity Potential ◽  
The Impact ◽  
Depletion Potential

Life cycle assessment is a crucial tool in evaluating systems performances for sustainability and decision-making. This paper provided environmental impact of integrating renewable energy systems to the utility-grid based on a baseline optimized energy production data from “HOMER” for renewable systems modelling of a site in northern Nigeria. The ultimate goal was to ascertain the best hybrid option(s) in sustaining the environment. Different assumptions and scenarios were modelled and simulated using Ganzleitlichen Bilanz (GaBi). Uncertainty analysis was ensured to the impact data based on pedigree-matrix and Excel-program, as well as overall policy relevance. The results of the impact categories revealed first scenario (i.e., conventional path-based) with the highest impacts on global warming potential (GWP), acidification potential (AP), human toxicity potential (HTP), and abiotic depletion potential (ADPfossils). The lowest impacts arise in the renewable-based scenarios for all the considered categories except the Ozone-layer depletion potential Category where the highest contribution falls in the third scenario (i.e., photovoltaic (PV)/biomass-biogas system) although all values being infinitesimal. In quantitative terms, the reduction in the GWP from the highest being the first scenario to the lowest being the fourth scenario (i.e., wind/biomass-biogas system) was 96.5%. Hence, with the outstanding contributions of the hybrid renewable systems, adopting them especially the lowest impact scenarios with expansions is relevant for environmental sustainability.

scholarly journals Life cycle assessment of low-rise office building with different structure–envelope configurations

2016 ◽  
Vol 43 (3) ◽  
pp. 193-200 ◽  
Author(s):  
Othman Subhi Alshamrani
Keyword(s):  
New York ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Energy Use ◽  
Precast Concrete ◽  
Market Price ◽  
Steel Structures ◽  
Office Building ◽  
The Impact

This paper presents life cycle assessment approach to study the impact of structure and envelope types on the energy consumption and environmental impact of an office building in New York City, USA. In addition, the future costs of environmental impact for various structure and envelope options are assessed according to the current practice and market price of CO2. Eight structure and envelope types for the low-rise office building are investigated, which include concrete and steel structures with various combinations of envelopes. The parameters such as life cycle energy use, global warming potential, and water, air and land emissions are analyzed. The energy simulation is performed by using eQUEST software while the environmental impact is assessed by using ATHENA® impact estimator. The building with concrete frame is proved to have lower environmental impact compared to that with steel frame. The precast concrete building is found to be the most economical alternative due to the minimal environmental impact cost. This study is expected to enable the decision makers and building owners to select the best alternative with respect to energy use, and environmental and economic constraints.

Life cycle assessment of three water supply systems: importation, reclamation and desalination

2009 ◽  
Vol 9 (4) ◽  
pp. 439-448 ◽  
Author(s):  
E. Lyons ◽  
P. Zhang ◽  
T. Benn ◽  
F. Sharif ◽  
K. Li ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Water Supply ◽  
Energy Use ◽  
Water System ◽  
Water Supply Systems ◽  
Seawater Desalination ◽  
Future Demands ◽  
The Impact ◽  
Supply Systems

The issues of water supply and management will become more and more critical as the global population increases. In order to meet future demands, water supply systems must be developed to maximize the use of locally available water. It is also important to minimize the impact of water system developments on the environment. In this study, the overall environmental impacts were compared for water importation, reclamation and seawater desalination to address the water scarcity in areas where local supplies are not sufficient. The city of Scottsdale, Arizona was chosen for this study. Life Cycle Assessment (LCA) was performed and it suggests that seawater desalination has the highest impact whereas reclamation shows a relatively lower impact. However, Importation and reclamation systems have comparable results for several damage categories. The impacts of facility operations are significantly higher than the construction phase even when the life-span of infrastructure reduces from 50 year to 10 year. Due to the high impacts associated with the energy use during plant operations, different energy mixes were analyzed for their capabilities to lower the environmental burden.

scholarly journals Decarbonisation Pathways of Industry in TIMES Model

2021 ◽  
Vol 25 (1) ◽  
pp. 318-330
Author(s):  
Signe Allena-Ozolina ◽  
Dzintars Jaunzems ◽  
Ieva Pakere ◽  
Andra Blumberga ◽  
Gatis Bazbauers
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Use ◽  
New Technologies ◽  
Industrial Sector ◽  
Wood Products ◽  
Improve Energy Efficiency ◽  
Efficiency Measures ◽  
Reduce Emissions ◽  
The Impact

Abstract The industry sector in many countries has a significant role in reaching national long-term emission reductions, energy efficiency and renewable energy targets. New technologies, wide implementation of energy efficiency measures and smart energy management are needed for the industry to ensure local and global competitiveness and reduce emissions. Since the industrial sector is often comprised of sub-sectors that are unique and with local specifics, this paper focuses on three of them, taking Latvia as the case. The sectors are: manufacture of wood and wood products, non-metallic mineral products, as well as food products and tobacco. These sub-sectors together consume around 80 % of the total final energy use in the country’s industrial sector. Comprehensive analysis and decomposition of the sub-sectors was made to identify future development pathways. TIMES model was used to elaborate a process-oriented modelling approach to analyze the impact of measures defined in the National Energy and Climate Plan until 2030 as well to gauge the impact of additional measures. Results show that these measures promote the use of renewable energy and improve energy efficiency, however it is necessary to set new measures and activities for the period beyond to reach climate neutrality by 2050.

scholarly journals 2-Piece Cork Stoppers as Alternative for Valorization of Thin Cork Planks: Analysis by LCA Methodology

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 873
Author(s):  
Francisco Javier Flor-Montalvo ◽  
Agustín Sánchez-Toledo Ledesma ◽  
Eduardo Martínez Cámara ◽  
Emilio Jiménez-Macías ◽  
Jorge Luis García-Alcaraz ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Raw Materials ◽  
Lca Methodology ◽  
Significant Difference ◽  
Different Dimensions ◽  
The Impact ◽  
Different Thickness ◽  
Cork Stoppers ◽  
Wine Bottle

Natural stoppers are a magnificent closure for the production of aging wines and unique wines, whose application is limited by the availability of raw materials and more specifically of cork sheets of different thickness and quality. The growing demand for quality wine bottle closures leads to the search for alternative stopper production. The two-piece stopper is an alternative since it uses non-usable plates in a conventional way for the production of quality caps. The present study has analyzed the impact of the manufacture of these two-piece stoppers using different methodologies and for different dimensions by developing an LCA (Life Cycle Assessment), concluding that the process phases of the plate, its boiling, and its stabilization, are the phases with the greatest impact. Likewise, it is detected that the impacts in all phases are relatively similar (for one kg of net cork produced), although the volumetric difference between these stoppers represents a significant difference in impacts for each unit produced.

scholarly journals Case study of a water bioengineering construction site in Austria. Ecological aspects and application of an environmental life cycle assessment model

2021 ◽  
Author(s):  
M. von der Thannen ◽  
S. Hoerbinger ◽  
C. Muellebner ◽  
H. Biber ◽  
H. P. Rauch
Keyword(s):  
Global Warming ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Demand ◽  
Assessment Model ◽  
Construction Site ◽  
Negative Effects ◽  
Environmental Life Cycle Assessment ◽  
The Impact ◽  
Soil And Water

AbstractRecently, applications of soil and water bioengineering constructions using living plants and supplementary materials have become increasingly popular. Besides technical effects, soil and water bioengineering has the advantage of additionally taking into consideration ecological values and the values of landscape aesthetics. When implementing soil and water bioengineering structures, suitable plants must be selected, and the structures must be given a dimension taking into account potential impact loads. A consideration of energy flows and the potential negative impact of construction in terms of energy and greenhouse gas balance has been neglected until now. The current study closes this gap of knowledge by introducing a method for detecting the possible negative effects of installing soil and water bioengineering measures. For this purpose, an environmental life cycle assessment model has been applied. The impact categories global warming potential and cumulative energy demand are used in this paper to describe the type of impacts which a bioengineering construction site causes. Additionally, the water bioengineering measure is contrasted with a conventional civil engineering structure. The results determine that the bioengineering alternative performs slightly better, in terms of energy demand and global warming potential, than the conventional measure. The most relevant factor is shown to be the impact of the running machines at the water bioengineering construction site. Finally, an integral ecological assessment model for applications of soil and water bioengineering structures should point out the potential negative effects caused during installation and, furthermore, integrate the assessment of potential positive effects due to the development of living plants in the use stage of the structures.

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