Risk Requirement for Multi-Hybrid Renewable Energy for Marine System

2015 ◽  
pp. 160-173
Author(s):  
Oladokun Sulaiman Olanrewaju
Keyword(s):  
Renewable Energy ◽  
Environmental Degradation ◽  
Alternative Energy ◽  
Maritime Industry ◽  
Renewable Sources ◽  
Solar Hydrogen ◽  
Marine System ◽  
Selection For ◽  
Hybrid Renewable Energy ◽  
Assessment Requirements

The chapter communicates environmental challenges facing the maritime industry. Efforts to integrate sources of alternative energy with existing systems through holistic proactive risk-based analysis and assessment requirements of associated environmental degradation and mitigation of greenhouse pollution are explored. The chapter also discusses alternative selection for hybridization of conventional power with compactable renewable sources like solar/hydrogen for reliable port powering.

Risk Requirement for Multi-Hybrid Renewable Energy for Marine System

2013 ◽  
pp. 83-95
Author(s):  
Oladokun Sulaiman Olanrewaju
Keyword(s):  
Renewable Energy ◽  
Environmental Degradation ◽  
Alternative Energy ◽  
Maritime Industry ◽  
Renewable Sources ◽  
Solar Hydrogen ◽  
Marine System ◽  
Selection For ◽  
Hybrid Renewable Energy ◽  
Assessment Requirements

The chapter communicates environmental challenges facing the maritime industry. Efforts to integrate sources of alternative energy with existing systems through holistic proactive risk-based analysis and assessment requirements of associated environmental degradation and mitigation of greenhouse pollution are explored. The chapter also discusses alternative selection for hybridization of conventional power with compactable renewable sources like solar/hydrogen for reliable port powering.

scholarly journals Wave Energy Assessment at Valencia Gulf and Comparison of Energy Production of Most Suitable Wave Energy Converters

2020 ◽  
Vol 17 (22) ◽  
pp. 8473
Author(s):  
Raúl Cascajo ◽  
Emilio García ◽  
Eduardo Quiles ◽  
Francisco Morant ◽  
Antonio Correcher
Keyword(s):  
Renewable Energy ◽  
Wave Energy ◽  
Energy Demand ◽  
Alternative Energy ◽  
Average Energy ◽  
Wave Climate ◽  
Energy Output ◽  
Renewable Sources ◽  
Wave Energy Converters ◽  
Energy Converters

Seaports’ energy strategy should rely on the use of renewable energy. Presently, the share of renewable energy used by many of the ports worldwide is negligible. Some initiatives are in the process of implementation to produce some of the energy used by the Port of Valencia, one the largest ports in the Mediterranean Basin. Among these initiatives, a photovoltaic plant with an installed capacity of 5.5 MW is under a tendering process and the assessment studies for the deployment of three to five windmills are close to being finished. However, this is not enough to make it a “zero emissions port” as some of the energy demand would still be covered by fossil fuels. Therefore, we should consider clean alternative energy sources. This article analyses the wave energy resources in the surroundings of the Port of Valencia using a 7-year series of data obtained from numerical modelling (forecast). The spatial distribution of wave power is analysed using data from 3 SIMAR points at Valencia Bay and is compared to the data obtained by the Valencia Buoy I (removed in 2005). The obtained results are used to estimate the power matrices and the average energy output of two wave energy converters suitable to be integrated into the port’s infrastructure. Finally, the wave energy converters’ production is compared to the average amount of energy that is forecast to be obtained from other renewable sources such as solar and wind. Due to the nature of the Gulf’s wave climate (mostly low waves), the main conclusion is that the energy obtainable from the waves in the Valencia Gulf will be in correlation with such climate. However, when dealing with great energy consumers every source of production is worthwhile and further research is needed to optimize the production of energy from renewable sources and its use in an industrial environment such as ports.

scholarly journals Factors of impact on the evolution of electricity markets from renewable energy sources: a comparison between Romania and Germany

2015 ◽  
Vol 10 (1) ◽  
pp. 34-52 ◽  
Author(s):  
Roxana Clodnițchi ◽  
Alexandra Cătălina Chinie
Keyword(s):  
Renewable Energy ◽  
Electricity Markets ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Business Community ◽  
Energy Sources ◽  
Future Market ◽  
The European Union ◽  
Renewable Sources ◽  
Alternative Energy Sources

Abstract When talking about the future of Europe we also think about alternative energy sources. It is up to national governments to decide how to encourage investments in this field in order to contribute to the 20-20-20 EU-objective. Until the network delivery cost for electricity produced from renewable sources will be comparable to the cost for energy from traditional sources ("grid parity"), the development of businesses and markets for electricity from renewable sources is going to be driven by support schemes. The state of the grids and the facility of grid-access constitute another two key factors influencing the development of this sector. Last but not least, the question of policy consistency is raised within the business community. Over the past years some support schemes have proved to be more effective than others, and grid conditions have also evolved. Policies supporting the development of renewables also changed at EU-level and at national levels. Based on statistics, scientific literature and the feedback of the business community, this study aims to analyse the development of renewable energy sectors in the European Union by comparing Germany’s and Romania’s experience. Also this study describes the current and expected future market situation in these countries relying on data gained from questionnaires and interviews with specialists in the renewable field.

scholarly journals A comparative approach between different optimize result in hybrid energy system using HOMER

2019 ◽  
Vol 9 (1) ◽  
pp. 141
Author(s):  
Shweta Goyal ◽  
Sachin Mishra ◽  
Anamika Bhatia
Keyword(s):  
Renewable Energy ◽  
Energy System ◽  
Physical Contact ◽  
Comparative Approach ◽  
Renewable Sources ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Hybrid Renewable Energy System ◽  
Reliability Issue ◽  
Hybrid Renewable Energy

<p>To compare the different result of optimization of a hybrid energy system. A hybrid renewable energy system (HRES) is the combination of renewable and non-renewable sources which is playing a very important role for rural area electrification when grid extension is not possible or excessively expensive. Non renewable sources like diesel power generator (optional) are used in a HRES for backup when renewable energy supply is not sufficient. While the HRES is very important due to the smallest natural and physical contact compared to non renewable sources, this work proposed a comparison outcome with the help of different component by using HOMER software and get best optimize result for the model. This paper presents a wide-ranging review of various aspects of HRES. This paper discusses study, best sizing, and model, organize aspect and reliability issue.</p>

scholarly journals LEVEL OF ENERGY SUPPLY OF ANIMAL FARMS FROM USING BIOGAS

2021 ◽  
pp. 100-112
Author(s):  
Mykola Stadnik ◽  
Andrii Shtuts ◽  
Oleksandr Pylypenko
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Energy Production ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Raw Material ◽  
Energy Sources ◽  
Industrial Complex ◽  
Livestock Waste ◽  
Renewable Sources

Ukraine has untapped potential for the production of own energy from renewable sources - processing of livestock waste (animal manure and bird droppings) with the formation of biogas, which can then be used to produce electricity, heat or fuel - analogues of natural gas (methane) (in particular, for own needs of farms). Currently in Ukraine, the generation of large amounts of waste on industrial farms is an environmental problem that needs to be addressed. Recycling livestock waste to generate biogas will partially solve environmental problems, as well as benefit from decentralized renewable energy production or fuel production. The role of renewable energy sources in energy production is constantly growing and now the issue of increasing the share of renewable sources in the energy balance of each country is relevant. In the supply of primary energy, the share of renewable energy accounts for 13% worldwide. Of these, biomass accounts for 10%, or 258 million tons per year, ie in the world biomass provides the largest share of energy supply from renewable sources. Domestic agricultural enterprises are significant consumers of fuel and energy resources, so they face the objective need to use alternative energy sources, including biofuels and the introduction of innovative energy-saving technologies. Biogas production is an efficient and attractive investment technology, due to the presence of significant raw material potential, favorable climatic and other. However, the level of introduction of this type of energy in the agro-industrial complex is insufficient, which is due to a number of issues, including insufficient level of practical recommendations for choosing power generators, their number, modes of operation taking into account daily energy consumption schedule, load and optimal efficiency. installations while providing autonomous power supply of the enterprise. This paper determines the level of energy supply of livestock farms through the use of biogas plants as a source of energy used for livestock waste.

Fuzzy logic control of a hybrid renewable energy system: A comparative study

2021 ◽  
pp. 0309524X2110287
Author(s):  
Mouna Ben Smida ◽  
Anis Sakly
Keyword(s):  
Fuzzy Logic ◽  
Renewable Energy ◽  
Control Strategies ◽  
Storage System ◽  
Energy System ◽  
Renewable Sources ◽  
Hybrid Renewable Energy System ◽  
Renewable Energy System ◽  
Modeling Uncertainties ◽  
Hybrid Renewable Energy

In this paper the authors have developed a hybrid renewable energy system. The studied structure comprises a wind energy generator, a shaded photovoltaic generator associated to an inertial storage system. The modeling of the global structure is developed and the control strategy is discussed. Conventional methods have been used to control the renewable sources. However, they may not have a suitable performance if the controlled system contains nonlinearity, as the wind turbine system or the shaded photovoltaic generator. In the presence of modeling uncertainties, the necessity of methods presenting controllers with appropriate performance as the advanced control strategies is inevitable. Fuzzy logic is used to control both the wind generator’s pitch angle and the maximum power point tracking (MPPT) of a shaded photovoltaic generator. The control of the storage flywheel, associated with the studied structure, to regulate the power supplied by renewable sources is also discussed. The design of the proposed strategy and its comparison with conventional controllers are carried out. The proposed method effectiveness is verified by MATLAB simulation results.

scholarly journals USINA HIDRELÉTRICA DE BELO MONTE: UMA VISÃO CRÍTICA DA PRINCIPAL FONTE DE ENERGIA DO PAÍS

2018 ◽  
Vol 10 (Especial) ◽  
pp. 80-86
Author(s):  
Ródney Silvério Costa Júnior ◽  
Ester Alcântara de Carvalho ◽  
Rafael Marcal
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Clean Energy ◽  
Environmental Disaster ◽  
Renewable Sources ◽  
Hydroelectric Energy ◽  
Xingu River ◽  
Break Even Point ◽  
Belo Monte

Renewable energy, alternative energy or clean energy are the three possible names for any energy obtained by renewable sources. Knowing this sources, the focus of this article will be analyze hydroelectric energy, more specifically, the plant of Belo Monte and the controversies around it, that appeared even before its construction. The plant, which is one hundred percent Brazilian, is installed in the interior of Pará, on the Xingu River. The debate that has been going on for years are the serious and negatives impacts that it causes, both social and environmental. Knowing this context, this article it is a criticism about this impacts, which is irreplaceable effect, and being an exploitation of the dilemma between the pree and the conservation of the environment. We conclude that it is necessary to find a break-even point between the two essential strands, to actually enable an evolution that does not cause an environmental disaster.

scholarly journals Grid Connected Hybrid Renewable Energy System with Various Controller Implementation

2020 ◽  
Vol 9 (4) ◽  
pp. 1003-1011
Keyword(s):  
Fuzzy Logic ◽  
Renewable Energy ◽  
Fuel Cell ◽  
Renewable Energy Sources ◽  
Pi Controller ◽  
Voltage Source ◽  
Energy Sources ◽  
Renewable Sources ◽  
Hybrid Renewable Energy System ◽  
Hybrid Renewable Energy

In power industry due to fast industrialization the generation system has upswing towards strongly procuring energy from various non-conventional energy sources (RES). Persistent work is carried out in order to use additional energy obtained from the renewable sources and limiting the dependence on the conventional energy sources. The amalgamation of various Hybrid Renewable Energy Sources (HRES) i.e. Solar, Wind and Fuel cell including load forms a Micro grid, the realistic management of energy from these renewable sources to accommodate the demand at the consumer end with proper efficiency is necessary. This paper proposes a hybrid system comprising of three energy sources PV, Wind and Fuel Cell and is connected to the grid by using power electronic converters using MATLAB/SIMULINK. A control circuit is designed by using PI controller and fuzzy logic based controller for providing gate signals to the inverter. The voltage profile when connected to a load by using various controllers is studied. A comparison study and behavior of source voltage, source current, load voltage and load current is studied by using PI controller and fuzzy logic controller.

scholarly journals Renewable Energy: Non-environmental Reasons to Make the Transition

2017 ◽  
Vol 12 (1) ◽  
pp. 43-48
Author(s):  
Andrew Johnson
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Energy Sources ◽  
Renewable Sources ◽  
Oil Companies ◽  
Renewable Energy Technologies ◽  
Alternative Energy Sources ◽  
Energy Technologies

Environmentalists continuously push for us, as a country, to decrease our fossil fuel usage and transition to a society powered by renewable energy. The money of oil companies and other corporations persuade our government to continue investing in fossil fuels as opposed to renewable energy. There are, however, other reasons which should convince us as a nation to invest in alternative energy sources. Eliminating our dependence on fossil fuels will benefit the nation economically and prepare us for a rapidly changing future. We, as Americans, should increasingly pursue renewable sources of alternative energy not only for the documented environmental reasons but also because investing in renewable energy technologies will provide jobs for Americans, decrease our dependence on other nations, and benefit the health of all Americans while decreasing our dependence on fossil fuels.

scholarly journals FORMATION OF THE CATEGORY APPARATUS OF NATIONAL LEGISLATION IN THE FIELD OF ALTERNATIVE ENERGY

2021 ◽  
pp. 68-75
Author(s):  
K. S. Yeremenko
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Natural Environment ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Energy Sources ◽  
Anthropogenic Emissions ◽  
Renewable Sources ◽  
National Legislation

The purpose of the article consists in the analysis of the norms of national and international legislation for the elimination of the discrepancies in the legal understanding of the definitions in the field of alternative energy, that is definition and scientific and theoretical substantiation of the notions «alternative sources of energy», «non-conventional sources of energy» and «renewable sources of energy», which will serve for the elimination of terminological discrepancies in national legislation, and will become a basis for uniform practical use of the latter in the field of alternative energy. Urgency of the research is conditioned by the reorientation of world energy sector in the direction of the substitution of conventional fuel sources for those alternative. Since global warming and increasing of the level of anthropogenic emissions as a result of human activity is one of the biggest ecological problems of the universe, international community, together with ecologists and climatologists of all the world are involved in the development and implementation of highly efficient international strategies, which are directed at the decrease of harmful impact of anthropogenic emissions on surrounding natural environment and human health. In order to prevent the climate change and to mitigate global warming the scientists of the entire world proposed a wide range of variants for the mitigation of climate changes of Earth. Among which the key place belongs to alternative and renewable energy sources, which have been identified as the main strategically successful directions of reducing anthropogenic emissions into the natural environment. Today, we can see a trend towards a reorientation of the global energy sector to more environmentally friendly, alternative and renewable energy sources and a departure from traditional fossil energy resources. At the same time, unambiguous interpretation and understanding of the conceptual and terminological apparatus is an important condition for the development and practical use of knowledge. Therefore, it is important to delineate the clear boundaries of the technologies included in the concepts of alternative and renewable sources of energy, as there are differences in the use of these concepts, both in national legislation and between national and international legislation. The article analyzes and systematizes the knowledge as to the categorial instrument in the field of alternative energy and proposes the definition of renewable and alternative energy sources in accordance with the rules of construction of conceptual and terminological apparatus taking into account international experience in this field. The proposed wording of these concepts serves to eliminate terminological inaccuracies in national legislation, and will address the gaps between national and international legislation in the field of application of the categorial instrument in the field of alternative energy.

Sign in / Sign up

Export Citation Format

Share Document