scholarly journals Pseudocapacitors

2021 ◽  
Author(s):  
Thibeorchews Prasankumar ◽  
Jemini Jose ◽  
Sujin Jose ◽  
Sreeja P. Balakrishnan
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Environmentally Friendly ◽  
Clean Energy ◽  
Energy Access ◽  
Energy Technologies ◽  
World Energy ◽  
Innovation Cost ◽  
Key Issues ◽  
Growing Economy

World energy consumption has grown at a rate of knots. Economic growth, increasing prosperity and urbanization, the rise in per capita consumption, and the spread of energy access are the factors likely to considerably increase the total energy demand. In order to meet both the environmental and economic challenges, society realizes the necessity for harvesting the renewable resources, their storage, and recovery. To achieve accelerating clean energy innovation, cost reduction, and deployment of many clean energy technologies, it is important to formulating policies and their implementation, programmes for the development of new and renewable energy apart from coordinating and intensifying R&D in the sector. At present, aggravating energy and environmental issues, such as fossil fuel depletion, pollution problems, and global warming are ringing alarm bells to humans. Thus, there is an urgent need for enhanced energy security along with reducing greenhouse gas emissions. In this direction, renewable energy is one of the environmentally friendly sources of energy and effectiveness of growing economy of the whole world in general. The development of environmentally friendly materials is one of the key issues today.

scholarly journals RENEWABLE ENERGY FOR SUSTAINABLE DEVELOPMENT IN MIDDLE EAST

2021 ◽  
pp. 70-80
Author(s):  
O. A. Pryiatelchuk ◽  
◽  
Sara Amirabbas ◽  
Keyword(s):  
Renewable Energy ◽  
Middle East ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Energy Access ◽  
Energy Policies ◽  
Renewable Energy Technologies ◽  
Energy Technologies ◽  
Rich Countries

Improving energy efficiency is one of the main ways to reduce energy pollution that leads to economic development, increasing energy access and better life. That can result in reducing fossil fuel use and growing clean energy supplies. The Gulf countries have as many renewable resources as hydrocarbons like sunshine, considerable wind resources, and geothermal. The economy of the Middle east deeplydepends on fossil fuel export. Declining fossil fuel supplies and rising energy prices are driving global energy supplies to renewables energies. Although the Middle East region, due to its special geographical features, has significant potential for the growth of renewable energy sources, they have not been developed yet. It overviews the energy situation and sustainability, economic potential of renewable energy, policies for energy systems over the recent decades in six resource-rich countries in the middle east. In addition, along with renewable energy technologies, possible ways to solve current environmental problems are recognized. The methodology of this work is PESTLE analysis of these countries' energy status to develop a long-term mechanism for sustainable and secure energy for the Middle East based on Political, Economic, Social, Technological, Legal, Environmental. Also, it identifies challenges that restrict the development of renewable energy technologies in the Middle East. By analyzing the status of energy in recent decades, the importance of implementation of effective energy policies to develop sustainable energy can be realized. Key words: energy source, sustainable future, renewable, effective policy, resource-rich countries.

Small-Scale Nuclear Energy

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Liam Darby ◽  
Amanda Hansson ◽  
Clement Tisdell
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Energy Demand ◽  
Nuclear Energy ◽  
Clean Energy ◽  
Small Scale ◽  
Renewable Energy Technologies ◽  
Advantages And Disadvantages ◽  
Energy Company ◽  
Energy Technologies

Ensuring an ongoing supply of power in a low carbon economy is one of the major national and international challenges that almost every country faces. Investments in alternative and renewable energy technologies have risen steadily over the last decade, particularly since the ratification of the 2030 Paris Agreement. Although reasonable progress has been made as a result of this, even the most developed renewable energy technologies, for example, solar, wind and hydro, cannot satisfy the rapidly growing energy demand of the world. Arguably a non-renewable energy source, nuclear energy may be one clean energy answer for the future. More specifically, small-scale nuclear energy holds considerable potential. Such potential exists in the form of light water small modular reactors (LW-SMRs). These SMRs have the capability to meet the energy independence and the energy security needs of many countries while reducing capital and operating expenditure and environmental and physical footprint. The modularity aspect of this technology allows for varied application, from large towns to rural regions that currently rely on individual generators. It also creates the opportunity of cogeneration with already existing conventional power generation technology to diversify power generation and increase grid stability. LW-SMRs are not a new idea; in fact, they have been used to power U.S. aircraft carriers and submarines for almost 60 years. This case study will address the advantages and disadvantages of the LW-SMR, using the market leader NuScale as an example. NuScale in Oregon, United States, is arguably the most experienced and influential LW-SMR nuclear energy company when it comes to the factory fabrication of LW-SMRs.

Direct ammonia fueled solid oxide fuel cells: A comprehensive review on challenges, opportunities and future outlooks

2020 ◽  
pp. 70-91 ◽  
Author(s):  
Molla Asmare ◽  
Mustafa Ilbas
Keyword(s):  
Electric Power ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Performance Comparison ◽  
Optimum Operating ◽  
Practical Implementation ◽  
Human Society ◽  
Energy Access ◽  
Green Fuel

Nowadays, the most decisive challenges we are fronting are perfectly clean energy making for equitable and sustainable modern energy access, and battling the emerging alteration of the climate. This is because, carbon-rich fuels are the fundamental supply of utilized energy for strengthening human society, and it will be sustained in the near future. In connection with this, electrochemical technologies are an emerging and domineering tool for efficiently transforming the existing scarce fossil fuels and renewable energy sources into electric power with a trivial environmental impact. Compared with conventional power generation technologies, SOFC that operate at high temperature is emerging as a frontrunner to convert the fuels chemical energy into electric power and permits the deployment of varieties of fuels with negligible ecological destructions. According to this critical review, direct ammonia is obtained as a primary possible choice and price-effective green fuel for T-SOFCs. This is because T-SOFCs have higher volumetric power density, mechanically stable, and high thermal shocking resistance. Also, there is no sealing issue problem which is the chronic issues of the planar one. As a result, the toxicity of ammonia to use as a fuel is minimized if there may be a leakage during operation. It is portable and manageable that can be work everywhere when there is energy demand. Besides, manufacturing, onboard hydrogen deposition, and transportation infrastructure connected snags of hydrogen will be solved using ammonia. Ammonia is a low-priced carbon-neutral source of energy and has more stored volumetric energy compared with hydrogen. Yet, to utilize direct NH3 as a means of hydrogen carrier and an alternative green fuel in T-SOFCs practically determining the optimum operating temperatures, reactant flow rates, electrode porosities, pressure, the position of the anode, thickness and diameters of the tube are still requiring further improvement. Therefore, mathematical modeling ought to be developed to determine these parameters before planning for experimental work. Also, a performance comparison of AS, ES, and CS- T-SOFC powered with direct NH3 will be investigated and best-performed support will be carefully chosen for practical implementation and an experimental study will be conducted for verification based on optimum parameter values obtained from numerical modeling.

Exploring the impacts of COVID-19 pandemic on Algeria’s energy used and climate change based on Olduvai theory

2022 ◽  
Vol 13 (1) ◽  
pp. 0-0
Keyword(s):  
Energy Demand ◽  
Clean Energy ◽  
Ecological Crisis ◽  
Industrial Society ◽  
The Novel ◽  
Policy Makers ◽  
Energy Technologies ◽  
Industrial Civilization ◽  
The 2008 Financial Crisis ◽  
The Impact

The Death of Industrial Civilization explains how the contemporary ecological crisis within industrial society is caused by the values inherent in unlimited economic growth and competitive materialism. It demonstrates the central role and importance of electricity, and what policy makers need to do in order to ensure that current and future systems remain reliable even as they are transformed by the rise of clean energy technologies. The novel COVID19 pandemic has created an unprecedented global health and economic crisis. The result of such a scenario is that energy demand contracts by 6%, the largest in 70 years in percentage terms and the largest ever in absolute terms. The impact of Covid19 on energy demand in 2020 would be more than seven times larger than the impact of the 2008 financial crisis on global energy demand and this is what the Olduvai theory is defined by e=energy production/population. It states that the life expectancy of Industrial Civilization is less than or equal to 100 years.

Considerations Regarding the Use of Fuel Cells in Combined Heat and Power for Stationary Applications

2021 ◽  
pp. 239-275
Author(s):  
Andrei Mircea Bolboaca
Keyword(s):  
Energy Demand ◽  
Alternative Energy ◽  
Clean Energy ◽  
Combined Heat And Power ◽  
Pollutant Emissions ◽  
Energy Technologies ◽  
Energy Demands ◽  
New Energy ◽  
Energy Conversion Systems ◽  
Polluting Emissions

Covering the energy demands under environmental protection and satisfying economic and social restrictions, together with decreasing polluting emissions, are impetuous necessities, considering that over half of the pollutant emissions released in the environment are the effect of the processes of electricity and heat production from the classic thermoelectric powerplant. Increasing energy efficiency and intensifying the use of alternative resources are key objectives of global policy. In this context, a range of new energy technologies has been developed, based on alternative energy conversion systems, which have recently been used more and more often for the simultaneous production of electricity and heat. An intensification of the use of combined energy production correlated with the tendency towards the use of clean energy resources can be helpful in achieving the global objectives of increasing fuel diversity and ensuring energy demand. The chapter aims at describing the fuel cell technology, in particular those of the SOFC type, used in the CHP for stationary applications.

scholarly journals Powering a Sustainable and Circular Economy—An Engineering Approach to Estimating Renewable Energy Potentials within Earth System Boundaries

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4723 ◽  
Author(s):  
Harald Desing ◽  
Rolf Widmer ◽  
Didier Beloin-Saint-Pierre ◽  
Roland Hischier ◽  
Patrick Wäger
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Great Distance ◽  
World Population ◽  
Earth System ◽  
Energy Access ◽  
Renewable Energy Resources ◽  
System Boundaries ◽  
Energy Mix ◽  
Engineering Approach

This study proposes a method to estimate the appropriability of renewable energy resources at the global scale, when Earth system boundaries/needs and the human demand for chemical energy are respected. The method is based on an engineering approach, i.e., uncertainties of parameters and models are considered and potentials calculated with 99 % confidence. We used literature data to test our method and provide initial results for global appropriable technical potentials (ATP) that sum up to 71 TW , which is significantly larger than the current global energy demand. Consequently, there is sufficient renewable energy potentially available to increase energy access for a growing world population as well as for a development towards increasingly closed material cycles within the technosphere. Solar energy collected on the built environment ( 29 % ) and in desert areas ( 69 % ) represent the dominant part of this potential, followed in great distance by hydro ( 0.6 % ), terrestrial heat ( 0.4 % ), wind ( 0.35 % ), and biomass ( 0.2 % ). Furthermore, we propose indicators to evaluate an energy mix on different levels, from an energy mix in single products to the mix used by the global economy, against the estimated RE potentials, which allow an evaluation and consideration in the design of sustainable–circular products and systems.

scholarly journals Emergencey Portable Solar Power Supply

2020 ◽  
Vol 6 (2) ◽  
pp. 76-85
Author(s):  
Nur Hafeizza Ramly
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Power Supply ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Green Technology ◽  
Ac Power ◽  
World Energy ◽  
World Energy Outlook

Emergency Portable Solar Power Supply is a product which uses renewable energy sources as the main sources of electricity which is sunlight. According to World Energy Outlook (WEO) 2018, the percentage of renewable energy used as a source to generate electricity grew by 17% higher than the 10-year average and solar energy contributed more than a third despite accounting for just 21% of the total. The main objective of this product is to create clean energy emergency portable solar power supply by using non-conventional energy source and green technology which can be used during any contingency happens and also for the usage for rural area with non-electric power source. This project was started by calculation of the system design for determining the characteristic that need to be used for all components that related to this solar system such as battery, charge controller, solar panel and etc. The overall system of this portable solar power supply is 12V system. This design can last for 2 days without charging and the minimum hour for the battery to be charged is around 6 hours. This product can supply maximum up to 100W of DC and AC power supply. In a conclusion, this product is very portable and greener product the usage of solar energy as the main sources to generate electricity.

Repositioning gas in the power generation mix

2018 ◽  
Vol 58 (2) ◽  
pp. 647
Author(s):  
Martin Wilkes
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Energy Demand ◽  
International Energy Agency ◽  
Potential Range ◽  
Energy Agency ◽  
Energy Needs ◽  
World Energy ◽  
The One ◽  
The Impact

Since the turn of the century, gas has been highlighted as the transition fuel to a lower emissions world, and, in 2011, the International Energy Agency published a special report entitled ‘Are we entering the golden age of gas’, which indicated that gas use could rise by over 50% to provide more than 25% of world energy demand by 2035. Even though gas use has risen in tandem with the increase in renewable energy, over the past decade, coal has been the fastest growing fuel because developing countries choose cheap power to provide their growing energy needs. Gas has been, and continues to be, subject to a green, cheap squeeze; squeezed by cleaner renewables on the one hand, and cheaper coal on the other. This paper will look at the impact that increasing amounts of renewable energy has on existing power generation and supply systems, and provide insights into the potential range of outcomes in emission levels, and the need to not only discuss renewable energy target, but to also understand the total energy mix, and the need to reposition gas from a transition fuel to the natural long-term companion of renewables.

Optimal Sizing of Hybrid Wind and Solar Renewable Energy System

2021 ◽  
pp. 539-577
Author(s):  
Diriba Kajela Geleta ◽  
Mukhdeep Singh Manshahia
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Clean Energy ◽  
Energy System ◽  
Total Annual Cost ◽  
Matlab Code ◽  
Load Demand ◽  
Renewable Energy System ◽  
The World ◽  
The Village

If properly designed and utilized, earth has rich potential of clean energy in satisfying the energy demand of the world. In this chapter, nature-inspired methodology was employed to optimize hybrids of renewable energy system in the case of Jeldu district of Ethiopia. The main goal of the researchers here is to minimize the total annual cost of the system, which can be designed by using appropriate numbers of components based on the pre-designed constraints to satisfy the load demand. MATLAB code was designed for the proposed methodology, and the results were discussed. It was seen from the result that the proposed approach has solved the optimum sizing of defined problem with high convergence. The results show that energy demand of the village can be optimally satisfied by the use of wind and solar hybrid system. Moreover, the application of this chapter is important for countries like Ethiopia to increase access to electricity.

scholarly journals Opening new markets for clean energy: The role of project developers in the global diffusion of renewable energy technologies

2018 ◽  
Vol 20 (4) ◽  
pp. 553-587 ◽  
Author(s):  
Bjarne Steffen ◽  
Tyeler Matsuo ◽  
Davita Steinemann ◽  
Tobias S. Schmidt
Keyword(s):  
Developing Countries ◽  
Renewable Energy ◽  
Home Country ◽  
Clean Energy ◽  
Solar Pv ◽  
Spatial Spillovers ◽  
Energy Technologies ◽  
Mixed Method Design ◽  
The Impact

AbstractAs renewable energy supply chains have grown increasingly globalized, national clean energy transitions have become highly influenced by international dynamics. However, these dynamics are themselves collectively shaped by domestic policy that drives the deployment of renewables. While spatial spillovers of domestic renewable energy policies have been studied on an aggregate level regarding policy diffusion or the flows of technology across countries, implications on an actor-level have been largely neglected. This article addresses this gap by analyzing global patterns of market openings for wind, solar PV, and biomass, focusing on the role of private project developers in developing countries. We use a mixed method design, based on a newly merged dataset encompassing eighty countries, and on interviews with pioneering project developers. Results highlight how patterns in market openings are shaped considerably by technology characteristics. Further, empirical results show international private developers are a key first mover in many developing countries. We explore drivers for this internationalization trend, including the impact of international developers' home country policies and the accumulation of tacit knowledge from home country markets for market openings abroad. Finally, we discuss implications for industrial policy and argue for further research on global spillovers of national policies on the actor-level.

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