scholarly journals Nuclear energy in the context of climate change

Author(s):  
Vasile Popa ◽  
Octavian Cocoș

Human society faces the great challenge of drastically reducing greenhouse gas emissions while providing increased amounts of energy. Although the share of renewable energy sources has increased in recent years, fossil fuels are still widely used and burning them makes large amounts of carbon dioxide enter the atmosphere. However, renewable energy sources may not be able to supply in time enough energy to replace fossil fuels. Under the circumstances, the question arises as to whether nuclear energy could play a significant role in mitigating climate change. Although there is still confidence and support for nuclear energy, it is unlikely that this energy source will make a greater contribution to combating climate change in the coming decades. This study analyzes the current state of nuclear energy, as well as the development prospects in the context of climate change and risks to the environment and human health.

2020 ◽  
Vol 305 ◽  
pp. 00070
Author(s):  
Alin Sultan ◽  
Marin Silviu Nan ◽  
Cristian Ilioni ◽  
Cosmin Vitan ◽  
Nicoleta Mamara

The continuous development of the human society is in a close correlation with the increased consumption of electricity. In the past few years, the thirst for electricity at a global level, has led both to higher levels of pollution and the depletion of fossil fuels. For this reason, the issue of energy efficiency is a priority of energy strategy at national and EU level. In this context, a solution to the above problems is to increase the rate of production of electricity from renewable energy sources. Thus, the paper presents a study of wind energy as a source of renewable energy, their modelling and simulation for the Motru area.


2021 ◽  
Author(s):  
Hemlal Bhattarai

Renewable energy sources are gaining momentum in power sector mainly to address the impacts of climate change as well as the risks associated with usage of fossil fuels or nuclear energy sources. Hydropower is one of the most promising renewable energy source-based power plant that hold significant shares globally. But there are series of risks associated with hydropower project when we talk about sustainability and needs are felt to critically understand the pertaining risks as well as protocols or measures to quantify the risks. Such measure will prove to be crucial in underlining the strategic measures from planning, construction and operation phases of hydropower keeping on account of its sustainability.


2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Isak Karabegović

It is well-known that, in the past decades, the burning of fossil fuels was identified as the major cause of climate change. Climate change mitigation is becoming a central concern of global society. Limiting global warming to below 2 °C above the temperature of the pre-industrial period is the key to preserving global ecosystems and providing a secure basis for human activities, as well as reducing excessive environmental change. The ambitions increased at an accelerated pace with a dramatic expansion of net zero-emission targets. Increasing pressure from citizens and society has forced countries to intensify their climate plans, while the private sector has bought a record amount of renewable energy. An energy system based on fossil fuels must be replaced by renewable energy with low carbon emissions with improved energy efficiency. That applies to all consumers of fossil energy: cities, villages, building sectors, industry, transport, agriculture, and forestry. The paper explores and presents the strategy of energy development of renewable energy sources in the world. The application of new technologies that have led to developing renewable energy sources is presented in detail: wind energy, solar energy, small hydropower plants, biomass, and their increase in the total share of energy production, i.e., reduced fossil fuel use in energy production. Investments in new technologies used in renewable energy sources have led to increases in employment worldwide. Analysis of the trend of increased energy production from RES (Renewable Energy Sources) with investment plans, the employment rate for each energy source, and the development of renewable energy sources in the coming period are provided.


2021 ◽  
Vol 101 ◽  
pp. 01010
Author(s):  
E.S. Romanova ◽  
A.A. Masalkova

This research work is devoted to the issue of studying the key risks of switching to renewable energy sources. The relevance of the topic of work is determined by the fact that, according to climatologists [5], climate change, which has a negative impact on the environment, is caused by the emission of greenhouse gases such as carbon dioxide (CO2). For this reason, measures to prevent or reduce greenhouse gas emissions are at the heart of the energy transition. International treaties such as the Kyoto Protocol and the Paris Agreement lay the foundations for global action to combat climate change and implement a fourth energy transition. The energy transition is characterized by a number of incentives and barriers. Despite the fact that there are many scenarios for the development of the global energy sector by 2050, the expected transformations of the energy market lead to a significant redistribution of the ratio of the shares of hydrocarbon sources and renewable energy sources [16]. The trend towards fossil fuels is on the rise. These transformations in the market are determined not only by the climate agenda, but also by the concept of sustainable economic development.


2019 ◽  
Vol 25 (3) ◽  
pp. 117-125
Author(s):  
Rena Lovo ◽  
Eric Gilder ◽  
Ora Renagi ◽  
Dapsy Olatona

Abstract In this study, the authors carried out a detailed analysis of the technologies required for successful implementation of a sustainable renewable energy household power supply in Papua New Guinea or PNG (PNG is a Pacific Island nation, North of Australia) to free the country from fossil fuel dependency. The role of renewable energy sources in the recent PNG National Energy Policy covering 2018 to 2050 (unveiled at the 2018 March Energy Summit in Port Moresby by the PNG Minister of Energy) was also analysed. From the outcome of our recently concluded SERI 2018 Renewable Energy conference, we assembled into a single hypothetical ‘energy basket’ all the varied renewable ‘green’ energy sources within PNG (as estimated by our energy research groups). This paper estimates that there is sufficient renewable energy in PNG and advocates that these available green energy sources should be tapped, for they can go a long way in the quest for climate change mitigation. This research paper will articulate that shifting PNG’s and other Pacific Island nations’ energy reliance from fossil fuels and other non-renewable sources to renewable green and environmentally sustainable sources is not only achievable, but feasible within a reasonable time.


2021 ◽  
Vol 2096 (1) ◽  
pp. 012095
Author(s):  
L V Nefedova ◽  
D A Solovyev ◽  
V V Bushuev ◽  
V M Zaicheneko

Abstract In this article, the authors offer their assessment of the current state and ways of development of electricity and heat generation systems in the world and the Russian Federation, considering the development prospects of renewable energy systems. The results of neural prediction based on the correlation of a set of heterogeneous data inputs are presented. Forecasting and comparing of renewable energy sources and other energy sources makes it possible to identify their strengths and weaknesses and find their optimal combinations in the overall structure of the future energy sector.


Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2906 ◽  
Author(s):  
George E. Halkos ◽  
Eleni-Christina Gkampoura

The world’s ever-increasing population, combined with economic and technological growth and a new, modern way of life, has led to high energy demand and consumption. Fossil fuels have been the main energy source for many years, but their use has many negative impacts on the environment. This has made the transition to renewable energy sources necessary in order to address climate change and meet the 1.5 °C goal. This paper is a review of the different types of renewables, their potentials and limitations, and their connection to climate change, economic growth, and human health. It also examines consumers’ willingness to pay for renewables in different countries, based on the existing literature. IEA (International Energy Agency) data are analyzed, concerning renewables’ current use, the evolution of their usage, and forecasts about their future usage. Finally, policies and strategies are recommended in order to address climate change and fully integrate renewables as a sustainable energy source.


Author(s):  
Heather L. Cooper

Motivated by energy security requirements and the desire to create a sustainable and safe environment, there is a growing need to transition gradually from fossil fuels toward new and emerging energy sources. The energy solutions of the future will require a significant amount of research and development, as well as increased awareness and acceptance of new and emerging energy technologies. Creating a highly educated workforce who will contribute to overcoming future energy challenges is a key component in bringing about this transition. One method of supporting workforce development in future energy solutions is to incorporate new and emerging energy technology directly into required undergraduate coursework. To this end, renewable energy projects were developed and implemented in a required introductory thermal science course in a mechanical engineering technology curriculum. The goal of the projects was to provide students with a deeper understanding of the need for, the advantages of, and the difficulties associated with renewable energy sources. The open-ended semester-long student projects included (1) research on the history and implementation of a renewable energy source, (2) development of an experimental application of the energy source in an energy conversion process, and (3) an economic analysis of the energy source in an assumed application or case study. This paper presents the design and development of these renewable energy projects, and informal and formal evaluation of the effectiveness of the projects over two years of classroom implementation. In addition, the link between the projects and select accreditation criteria for engineering technology programs is discussed.


Author(s):  
Merve Duruyurek ◽  
Cihan Dusgun ◽  
Mehmet Fuat Gulhan ◽  
Zeliha Selamoğlu

Using primary energy sources in World as fossil fuels, causes air pollution and climate change. Because of these reasons, people looking for renewable energy suppliers which has less carbondioxide and less pollution. Carbon in biofuels is producing from photosynthesis. For this, burning biofuels don’t increase carbondioxide in atmosphere. Scientists predict that plants with high carbonhydrate and protein contents are 21. centuries biofuels. Potatoes are producing over 280 million in whole world and Turkey is 6th potato producer. Turkey produces 5250000 tonne of potatoes. Approximately 20% of potatoes are waste in Niğde. Our study aimed to produce bioethanol from Solanum tuberosum by using the yeast Saccharomyces cerevisiae. As a result renewable energy sources can be produced from natural wastes.


2018 ◽  
Vol 3 (12) ◽  
pp. 112-118
Author(s):  
Van Huong Dong

Fossil fuels such as coal, oil, and gas meet most of the energy needs of people, but fossil fuels are unsustainable. The use of fossil fuels is one of the main causes of climate change and it has a serious impact on human health. In addition, these fuels are depleting, so the research and use of renewable energy sources such as wind, solar, geothermal or biomass is a necessity. In this paper, we mention some of the main reasons for promoting the development of renewable energy, the potential and the reality of renewable energy exploitation in Vietnam. In addition, we also outline the main reasons that hinder the development and exploitation of renewable energy sources in Vietnam.


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