scholarly journals Comparative Environmental Life Cycle and Cost Assessment of Electric, Hybrid, and Conventional Vehicles in Lithuania

2021 ◽  
Vol 13 (2) ◽  
pp. 957
Author(s):  
Kamilė Petrauskienė ◽  
Arvydas Galinis ◽  
Daina Kliaugaitė ◽  
Jolanta Dvarionienė
Keyword(s):  
Life Cycle ◽  
Combustion Engine ◽  
Renewable Energy Sources ◽  
Economic Benefits ◽  
Life Cycles ◽  
Point Of View ◽  
Environmental Damage ◽  
Economic Point ◽  
Electricity Mix ◽  
Cost Efficient

Electric mobility is promoted as a future transport option that has environmental and economic benefits and encourages sustainable urban transportation. The aim of this study is to reveal the changes in environmental and economic performance if we switched from internal combustion engine vehicles (ICEVs) to battery electric (BEV) or hybrid electric (HEV) vehicles. Therefore, this research presents a comparative environmental life cycle assessment (LCA) from the Cradle-to-Grave perspective of the vehicles and a Well-to-Wheel analysis of their fuel supply. Moreover, an LCA of a BEV was performed under diverse electricity mix scenarios, which are forecasted for 2015–2050 in Lithuania. From an economic point of view, a life cycle costing was conducted for the same vehicles to estimate the economic impacts over the vehicle life cycles under Lithuanian conditions. The results show that ICEV-petrol contributes the major environmental damage in all damage categories. BEVs with the electricity mix of 2020–2050 scenarios, which are composed mainly of renewable energy sources, provide the least environmental impact. The economic results reveal that BEV and ICEV-diesel are the most cost-efficient vehicles, with the total consumer life cycle costs of approximately 5% and 15% less than ICEV-petrol and HEV, respectively.

scholarly journals ATSINAUJINANČIOS ENERGIJOS ŠALTINIŲ DIEGIMO MODERNIZUOJAMUOSE PASTATUOSE ĮVERTINIMAS GYVAVIMO CIKLO POŽIŪRIU: ATVEJO ANALIZĖ / EVALUATION OF RENEWABLE ENERGY SOURCES INSTALLATION IN REFURBISHED BUILDINGS IN TERMS OF LIFE CYCLE: CASE STUDY

2019 ◽  
Vol 11 (0) ◽  
pp. 1-5
Author(s):  
Artur Rogoža ◽  
Giedrius Šiupšinskas ◽  
Juozas Bielskus ◽  
Violeta Misevičiūtė
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Renewable Energy Sources ◽  
Heat Pumps ◽  
Point Of View ◽  
Energy Sources ◽  
Domestic Water ◽  
Economic Point ◽  
Energy Technologies ◽  
Production And Consumption

Renewable energy technologies are increasingly integrated into the modernization of multi-apartment buildings, however their benefits are rarely assessed from a complex environmental, energy and economic point of view. The article presents the results of the modernization of a particular apartment building in terms of the production and consumption of energy in a building, from the viewpoint of the life cycle. The benefits of the building’s energy modernization were assessed by introducing active (heat pumps and solar collectors for hot domestic water production) and passive modernization measures. The results show that the integration of heat pumps when electricity is produced from non-renewable energy sources according to the analyzed categories of life cycle analysis is not eco-friendly.

scholarly journals VARTOTOJŲ ENERGIJOS TAUPYMO IR ŠILUMINIO KOMFORTO SUPRATIMO TYRIMAS DARNIUOSE PASTATUOSE / SURVEY ON OCCUPANTS KNOWLEDGE ON ENERGY CONSERVATION AND INDOOR CLIMATE IN SUSTAINABLE BUILDINGS

2019 ◽  
Vol 11 (0) ◽  
pp. 1-5
Author(s):  
Jonas Bielskus ◽  
Violeta Motuzienė
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Renewable Energy Sources ◽  
Heat Pumps ◽  
Point Of View ◽  
Indoor Climate ◽  
Domestic Water ◽  
Economic Point ◽  
Energy Technologies ◽  
Production And Consumption

Renewable energy technologies are increasingly integrated into the modernization of multi-apartment buildings, however their benefits are rarely assessed from a complex environmental, energy and economic point of view. The article presents the results of the modernization of a particular apartment building in terms of the production and consumption of energy in a building, from the viewpoint of the life cycle. The benefits of the building’s energy modernization were assessed by introducing active (heat pumps and solar collectors for hot domestic water production) and passive modernization measures. The results show that the integration of heat pumps when electricity is produced from non-renewable energy sources according to the analyzed categories of life cycle analysis is not eco-friendly.

scholarly journals Comparison between Concentrated Solar Power and Gas-Based Generation in Terms of Economic and Flexibility-Related Aspects in Chile

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1063
Author(s):  
Catalina Hernández Moris ◽  
Maria Teresa Cerda Guevara ◽  
Alois Salmon ◽  
Alvaro Lorca
Keyword(s):  
Natural Gas ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Cost Effective ◽  
Hybrid Plant ◽  
Point Of View ◽  
Concentrated Solar Power ◽  
Economic Point ◽  
Hybrid Plants ◽  
Cost Of Energy

The energy sector in Chile demands a significant increase in renewable energy sources in the near future, and concentrated solar power (CSP) technologies are becoming increasingly competitive as compared to natural gas plants. Motivated by this, this paper presents a comparison between solar technologies such as hybrid plants and natural gas-based thermal technologies, as both technologies share several characteristics that are comparable and beneficial for the power grid. This comparison is made from an economic point of view using the Levelized Cost of Energy (LCOE) metric and in terms of the systemic benefits related to flexibility, which is very much required due to the current decarbonization scenario of Chile’s energy matrix. The results show that the LCOE of the four hybrid plant models studied is lower than the LCOE of the gas plant. A solar hybrid plant configuration composed of a photovoltaic and solar tower plant (STP) with 13 h of storage and without generation restrictions has an LCOE 53 USD/MWh, while the natural gas technology evaluated with an 85% plant factor and a variable fuel cost of 2.0 USD/MMBtu has an LCOE of 86 USD/MWh. Thus, solar hybrid plants under a particular set of conditions are shown to be more cost-effective than their closest competitor for the Chilean grid while still providing significant dispatchability and flexibility.

scholarly journals Linking the spare parts management with the total costs of ownership: An agenda for future research

2016 ◽  
Vol 9 (5) ◽  
pp. 991 ◽  
Author(s):  
Orlando Duran ◽  
Irene Roda ◽  
Marco Macchi
Keyword(s):  
Life Cycle ◽  
Conceptual Framework ◽  
Spare Parts ◽  
Point Of View ◽  
Management Decision ◽  
Future Research ◽  
Extensive Literature ◽  
Economic Point ◽  
Spare Parts Management ◽  
Physical Asset

Purpose: This manuscript explores the link between Spare Parts Management and Total Costs of Ownership or Life Cycle Costs (LCC).Design/methodology/approach: First, this work enumerates the different managerial decisions instances in spare parts management that are present during the life cycle of a physical asset. Second, we analyse how those decision instances could affect the TCO of a physical asset (from the economic point of view). Finally, we propose a conceptual framework for incorporating the spare parts management into a TCO model.Findings: The recent literature lacks discussions on the integration of spare parts management with the Total Costs of Ownership (TCO). Based in an extensive literature revision we can declare that the computation of costs related to spare parts management has been neglected by TCO models.Originality/value: The contribution of this paper is twofold. First, a literature review and identification of a series of spare parts management decision instances and its relationship with TCOs is presented in this paper. Second, a conceptual framework is suggested for linking those decisions instances to a total cost of ownership perspective. Some research questions and future research challenges are presented at the end of this work.

Cooperation Strategies Towards Sustainability in Insular Territories

2020 ◽  
pp. 216-238 ◽  
Author(s):  
Sérgio António Neves Lousada ◽  
Rui Alexandre Castanho
Keyword(s):  
Spatial Planning ◽  
Renewable Energy Sources ◽  
Point Of View ◽  
Energy Sources ◽  
Future Prospects ◽  
Economic Point ◽  
El Hierro ◽  
Sustainability Strategies ◽  
Economic Constraints ◽  
Sustainable Energy Policy

Nowadays, the high environmental sensitivity and economic constraints, as well as future prospects for development, require a strong sustainable energy policy. Such policies should be based on the local resource valorization – which gains more emphasis in ultra-peripheral territories as the case of the Madeira and Canary Archipelagos. In fact, renewable energy sources become more competitive from the economic point of view – however, with high environmental and social benefits in both Archipelagos. Thus, the local policies of Porto Santo Island will be inspired on the neighbor archipelago (Canary Islands), more specifically in the El Hierro Island – which is one of the worldwide leaders in sustainability issues. Contextually, the work enables a view through the cooperation perspective, highlighting sustainability strategies in Porto Santo Island (Madeira, Portugal) and El Hierro Island (Canary, Spain). Therefore, it will address diverse forms of energy production through natural resources with influence on spatial planning.

scholarly journals Ecological and Economic Benefits of the “Medium” Level of the Building Thermo-Modernization: A Case Study in Poland

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4509 ◽  
Author(s):  
Janusz Adamczyk ◽  
Robert Dylewski
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Environmental Impact ◽  
Heat Source ◽  
Renewable Energy Sources ◽  
Economic Benefits ◽  
Study Data ◽  
Energy Resources ◽  
Pollutant Emissions ◽  
Energy Devices

Energy saving is at the heart of sustainable development in the context of climate change. Saving energy is not only the amount of energy that we save, but also reducing emissions of pollutants to the atmosphere, as well as reducing the consumption of energy resources that are used to produce energy. Reducing pollutant emissions and the use of energy resources can be achieved by increasing the use of renewable energy sources, but at present, this method of obtaining energy in the world is not representative. It should be noted that renewable energy devices throughout the life cycle generate environmental impact. Similar to this situation, the building’s thermo-modernization, which is focused on reducing the pressure on the environment of the building’s user, also has an impact on the environment throughout the building’s life cycle. Determining this environmental impact and ecological or economic benefits or costs is the purpose of the following article. Thermo-modernization of the building, for the purposes of the article, is understood as thermal insulation of walls and replacement of the heat source for heating the building and preparation of hot utility water. The need to replace the heat source with a much more ecological one results in Poland from provincial legal regulations announced by virtue of a resolution. In the study, data from the Ecoinvent data library included in the SimaPro computer program was used for the LCA (Life Cycle Assessment) analysis. As a result of thermo-modernization of the representative buildings, large ecological benefits were obtained, while economic costs remain at a high level.

scholarly journals Life Cycle Assessment of a Barge-Type Floating Wind Turbine and Comparison with Other Types of Wind Turbines

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5656
Author(s):  
Nurullah Yildiz ◽  
Hassan Hemida ◽  
Charalampos Baniotopoulos
Keyword(s):  
Global Warming ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Wind Turbine ◽  
Wind Turbines ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Life Cycles ◽  
Floating Wind Turbine

The intensive increase of global warming every year affects our world negatively and severely. The use of renewable energy sources has gained importance in reducing and eliminating the effect of global warming. To this end, new technologies are being developed to facilitate the use of these resources. One of these technological developments is the floating wind turbine. In order to evaluate the respective environmental footprint of these systems, a life cycle assessment (LCA) is herein applied. In this study, the environmental impact of floating wind turbines is investigated using a life cycle assessment approach and the results are compared with the respective ones of onshore and jacket offshore wind turbines of the same power capacity. The studied floating wind turbine has a square foundation that is open at its centre and is connected to the seabed with a synthetic fibre-nylon anchorage system. The environmental impact of all life cycles of such a structure, i.e., the manufacture, the operation, the disposal, and the recycling stages of the wind turbines, has been evaluated. For these floating wind turbines, it has been found that the greatest environmental impact corresponds to the manufacturing stage, whilst the global warming potential and the energy payback time of a 2 MW floating wind turbine of a barge-type platform is higher than that of the onshore, the jacket offshore (2 MW) and the floating (5 MW) wind turbines on a sway floating platform.

scholarly journals Paradoxos do turismo sustentável: implicações de ordem ambiental e econômica do tráfego de veículos nas dunas e à beira-mar de Jacumã (RN)

2017 ◽  
Vol 10 (4) ◽  
Author(s):  
Jonas Sérgio do Rêgo Pinto-Júnior ◽  
Camila Kayssa Targino-Dutra ◽  
Ana Beatriz Gomes-Ferreira ◽  
Juliana Garcia Vidal-Rodrigues ◽  
Sueli Aparecida Moreira
Keyword(s):  
Local Community ◽  
Sustainable Tourism ◽  
Economic Benefits ◽  
Point Of View ◽  
Economic Dimension ◽  
Economic Point ◽  
Non Profit ◽  
Vehicle Traffic ◽  
Adventure Tourism ◽  
Negative Impacts

O presente estudo busca verificar os danos e/ou impactos ambientais decorrentes do tráfego de viaturas e veículos movidos à combustão nas dunas de Jacumã/RN, bem como os benefícios econômicos que os mesmos oferecem e disponibilizam com a prática de passeios turísticos e passeios de aventura sem fins lucrativos. A metodologia é de natureza qualitativa, por meio da obtenção de depoimentos de representantes de instituições: IBAMA, IDEMA, JEEP CLUBE NATAL, Secretaria Estadual de Turismo, Projeto Tamar, comerciantes locais e o Sindicato dos Buggueiros. Os depoimentos compreenderam questões sobre impactos negativos ao meio ambiente e sobre a importância do turismo de aventura (tráfego de veículos) do ponto de vista econômico. O principal impacto observado foi em relação à circulação de veículos à beira mar e sobre a restinga. O passeio restrito sobre dunas não oferece tanto impacto à natureza. O passeio de buggy é consolidado como atrativo único e tem boa aprovação pela comunidade local. O planejamento turístico de modo sustentável pode conciliar estratégias de redução de impacto ambiental atreladas ao desenvolvimento econômico e melhor inserção da comunidade na atividade turística. Paradoxes of sustainable tourism: implications of environmental and economic dimension on vehicle traffic in the dunes and seafront of Jacumã (RN, Brazil) ABSTRACT This study aimed to verify the environmental impacts of vehicular traffic and vehicles powered by combustion in the Jacumã / RN dunes, as well as to understand the economic benefits derived from the practice of non-profit tours and adventure tours. The methodology is qualitative, with statements from representatives of institutions: IBAMA, IDEMA, JEEP CLUBE NATAL, State Secretary of Tourism, Tamar Project, local merchants and the Buggueiros Union. The statements included questions about negative impacts on the environment and the importance of adventure tourism (vehicle traffic) from an economic point of view. The main impact was observed in relation to the circulation of vehicles at the seaside and on the restinga vegetation. The buggy ride is consolidated as a good tourist attraction and has good approval by the local community. It is therefore concluded that tourism planning in a sustainable way can conciliate strategies of reduction of environmental impact linked to the economic development and better insertion of the community in the tourist activity. KEYWORDS: Ecological Tourism, Permanent Preservation Areas, Sustainable Tourism; Potiguar Dunes.

scholarly journals PROBLEM ISSUES OF ECONOMIC ESSENCE DETERMINATION OF PRODUCTION SUPPLIES

2017 ◽  
pp. 224-229
Author(s):  
Olha Roieva
Keyword(s):  
Information Needs ◽  
Synthesis Method ◽  
Logic Synthesis ◽  
Legal Framework ◽  
Economic Benefits ◽  
Point Of View ◽  
Manufacturing Companies ◽  
Economic Sectors ◽  
Economic Point ◽  
Analysis And Synthesis

Introduction. The essence of inventory from the logistic and economic point of view is considered in the article. It has been established that the national scientist believe that the theoretical basis for identifying and recording of inventory does not need improvement. Changes are appropriate only in certain situations due to the specifics of the company or industry. According to the results of analysis of the regulatory and legal framework it is proposed the clarification of criteria of resources of the inventory and recognition of their assets. Purpose. The article aims to determine the nature of inventory enterprises in the fast-growing information needs of users. The method (methodology). The study has used methods of theoretical and logic synthesis, method analysis and synthesis, method of comparison and prediction. Results. The approaches to defining the essence of inventory with the aim to optimize the process of accounting and management in enterprises of different economic sectors have been proposed. Recommendations for determining categorical nature "inventory" and the concept of "economic benefits" that would allow economic grouping and operational control of inventories are worked out. Implementation of proposed criteria will deepen the theoretical and methodological basis of accounting and inventory. It will improve the efficiency of accounting and analytical system of manufacturing companies of any sector of the economy.

scholarly journals Fibula Graft Cutting Devices: Are 3D-Printed Cutting Guides More Precise than a Universal, Reusable Osteotomy Jig?

2020 ◽  
Vol 9 (12) ◽  
pp. 4119
Author(s):  
Simon Meyer ◽  
Jan-Michaél Hirsch ◽  
Christoph S. Leiggener ◽  
Bilal Msallem ◽  
Guido R. Sigron ◽  
...  
Keyword(s):  
Relative Length ◽  
Point Of View ◽  
Subjective Perception ◽  
Economic Point ◽  
Fibula Graft ◽  
Angle Deviation ◽  
Cutting Guides ◽  
3D Printed ◽  
Cost Efficient ◽  
Jaw Defects

Individual cutting guides for the reconstruction of lower jaw defects with fibular grafts are often used. However, the application of these osteotomy tools is costly and time intensive. The aim of this study was to compare the precision of osteotomies using a 3D-printed guide with those using a universal, reusable, and more cost-efficient Multi-Use Cutting Jig (MUC-Jig). In this non-blinded experimental study, 10 cranio-maxillofacial surgeons performed four graft removals each in a randomized order using the same osteotomy angle, both proximally (sagittal cut) and distally (coronal cut), of a graft (45°, 30°, 15°, or 0°), first with the MUC-Jig then with the 3D-printed cutting guide. The 40 fibula transplants (Tx) of each method (n = 80) were then analyzed concerning their Tx length and osteotomy angles and compared to the original planning data. Furthermore, the surgeons’ subjective perception and the duration of the two procedures were analyzed. The mean relative length and mean relative angle deviation between the MUC-Jig (−0.08 ± 1.12 mm; −0.69° ± 3.15°) and the template (0.22 ± 0.90 mm; 0.36° ± 2.56°) group differed significantly (p = 0.002; p = < 0.001), but the absolute deviations did not (p = 0.206; p = 0.980). Consequently, clinically comparable osteotomy results can be achieved with both methods, but from an economic point of view the MUC-Jig is a more cost-efficient solution.

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