An Unexpected Solution to the Energy Crisis: Hybrid Nuclear Energy

Author(s):  
Michael F. Keller

The global need for environmentally clean yet inexpensive and reliable energy is a problem that has yet to find a solution. • In one corner are coal plants that can generate low-cost power using abundant reserves of coal, but if emissions are uncontrolled, major health and environmental impacts can occur. • In another corner are natural gas power plants that can produce energy with relatively low emissions, but the cost to the consumer is unpredictable and often high. • Yet another option lies with building nuclear plants that produce emissions-free power, but initial costs are very high and some public unease exists with respect to safety. A major complication is the consensus that burning massive amounts of fossil fuels is a primary culprit behind climate change. While intermittent renewable energy (e.g. solar and wind) and conservation practices can help, the undeniable truth is that the vast quantities of power we continuously consume overwhelm the practical capabilities of the “green” sources. Similar in nature to the fundamentals behind the hybrid automobile, Hybrid-nuclear Energy is an emerging 21st century technology that provides an environmentally sound and economical solution to the power and greenhouse gas dilemmas. This developing energy conversion process uses nuclear and fossil fuels to safely produce reasonably priced electrical power and transportation fuels from our own indigenous sources with the timely benefit of dramatically reduced emissions, particularly CO2. Hybrid-nuclear Energy secures energy independence by using cleaner coal, effectively solves nuclear and coal waste dilemmas, and helps create more affordable nuclear power. These surprising results are achieved by a unique marriage of helium gas reactor, combustion turbine and coal gasification technologies.

Author(s):  
Shirley S. Ho

In comparison to fossil fuels that emit greenhouse gases, nuclear power plants are a cleaner energy source that could help to mitigate the problems of climate change. Despite this, the general public often associates nuclear energy with risks that include nuclear accidents, nuclear waste contamination, nuclear weapons proliferation, and many others. People’s experience with the 1979 Three Mile Island incident in Pennsylvania and the 1986 Chernobyl nuclear disaster in Ukraine have caused a sharp decline in public support for nuclear energy over the past few decades. In addition, media images of the 2011 Fukushima-Daichii nuclear accident are still fresh in the minds of the public. These now iconic media images and portrayals have perpetuated a perception of nuclear energy as a risky technology. Against these backdrops, scientists, communication practitioners and other key stakeholders increasingly face an uphill struggle to communicate about nuclear energy as a possible strategy for addressing climate change. Though the general public may reluctantly accept nuclear energy for climate change mitigation, research suggests that messages emphasizing the benefits of nuclear power for energy security and economic growth appear to have greater impact on public acceptance of the technology. Furthermore, public perception of nuclear energy is shaped by a host of other factors such as trust in nuclear governing institutions, knowledge, political inclinations, geographical proximity, and socio-demographic variables. At the same time, nuclear experts and the general public differ in their perceptions of risk, in nature and strength, relative to nuclear energy. Understanding these key differences between the experts and the public, and how beliefs, values, and perceptions influence public acceptance of nuclear energy is necessary to formulate effective public communication and engagement strategies.


Author(s):  
Luigi De Paoli ◽  
Francesco Gulli

- The debate on the benefits of nuclear energy revolves around the very competitiveness of this energy source. This article tries to show why it is not easy to answer unambiguously the question whether or not it is convenient to resort to nuclear power in a given country. After listing the factors on which the cost of electricity generation rests and discussing the range of probability of their value, the levelized cost of electricity generation from nuclear, coal and gas-fired plants is calculated using the Monte Carlo method. The results show that nuclear power is likely to be competitive, especially if policies to combat CO2 emissions will continue in the coming decades. There are, however, some margins of uncertainty, mainly related, to the one hand, to the cost of nuclear plants, that depends on the socio-institutional context, and on the other, to the fossil fuels cost, that are inherently difficult to anticipate even on average. Finally it is noted that the context of liberalized electricity markets may make it more difficult for investors to accept the risk of investing in nuclear power plants and for the community to socialize some of the costs associated with this technology.Key words: Nuclear energy, generation costs, Montecarlo method, environmental impacts.JEL classifications: G11, H23, L72, L94, Q31, Q40


2021 ◽  
Vol 73 (07) ◽  
pp. 65-66
Author(s):  
Chris Carpenter

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper IPTC 21348, “The Color of Energy: The Competition To Be the Energy of the Future,” by Hon Chung Lau, National University of Singapore, prepared for the 2021 International Petroleum Technology Conference, held virtually 23 March–1 April. The paper has not been peer reviewed. Copyright 2021 International Petroleum Technology Conference. Reproduced by permission. The author of the complete paper, for the purposes of this study, characterizes energies as brown, blue, or green. Brown energies are carbon dioxide (CO2)-emitting fossil fuels, such as gas, oil, or coal. Blue energies use carbon capture and storage (CCUS) technologies to remove the emitted CO2 from brown energies. Green energies are zero- or low-CO2-emitting renewable energies. By analyzing the CO2 intensity and levelized cost of energy of energy carriers of different colors, the author shows that renewable energies are best used in replacing fossil fuels in the power sector, where they have the greatest effect in reducing CO2 emission. Overview By 2017, only 11% of the world’s final consumption came from renewable energies, 85% came from fossil fuel, and 4% came from nuclear energy. Energy consumption can be divided into three sectors: power, transport, and thermal. At the time of writing, 26.4% of global power (electricity) consumption comes from renewable energies. In this sphere, renewable energies are making the most significant contribution in reducing CO2 emission. Forty-one percent of CO2 emission comes from electricity and heat, 21% from transport, and 21% from industry. Consequently, the key to global decarbonization is to decarbonize these three sectors. Green Energy Is Preferred Green energies consist of six major types: solar photovoltaic, solar thermal, wind, hydroelectricity, geothermal, and biomass. If 1 kWh of electricity generated by renewable energy (with the exception of biomass) is used to replace 1 kWh of electricity generated by fossil fuel, the net CO2 savings will amount to 0.8, 0.6, and 0.4 kg for replacing coal, oil, and natural gas, respectively. However, if 1 kWh of renewable electricity is used to generate green hydrogen (H2), which is then used for heat generation in industry, it will yield roughly 0.8 kWh of thermal energy, which replaces the same amount of thermal energy by natural gas. This amounts to a CO2 savings of only 0.16 kg CO2/kWh. Consequently, renewable power has the highest CO2 savings effect if it is used to replace fossil fuel for power generation rather than to replace fossil fuel for heat generation. Decarbonizing the Power Sector The power sector is easiest to decarbonize. The three methods foreseen to decarbonize the power sector are nuclear power, blue electricity generated by fossil-fuel power plants equipped with CCUS, and green electricity produced by renewables. The use of nuclear power plants is a country-specific issue. The dual challenge of nuclear plant safety and nuclear waste storage is a key sustainability issue. Recently, interest has been renewed in the idea of increasing investment in nuclear energy for decarbonizing the power sector. It is noteworthy that the countries for whom more than a quarter of their power generation is provided by nuclear energy are all in Europe.


2013 ◽  
Vol 805-806 ◽  
pp. 1429-1433 ◽  
Author(s):  
Jin Li ◽  
Chu Fu Li

Coal-based synfuels plants are facing serious pressure on CO2 emissions reduction. Developing the coal-based synfuels system coupled with nuclear energy is an effective approach to reduce CO2 emissions. This work analyzes CO2 emissions features in the coal-based synfuels system, and further investigates three coupling paths between the coal-based synfuels system and nuclear energy. Subsequently, an inherent-safety and low-carbon coal-based synfuels system coupled with nuclear energy is proposed. In the coupled system, valley nuclear power is provided to conventional water electrolyser for hydrogen/oxygen production, and oxygen and hydrogen are supplied to the coal gasification and fuel synthesis processes, respectively. The simulation results show that the coupled system can reduce about 50% raw coal consumption and almost all CO2 emissions compared to the conventional coal-based synfuels system, meanwhile it can improve the peak shaving capacity of nuclear power plants.


2021 ◽  
Vol 11 (21) ◽  
pp. 10349
Author(s):  
Solomon Eghosa Uhunamure ◽  
Ephraim Bonah Agyekum ◽  
Olatunde Samod Durowoju ◽  
Karabo Shale ◽  
Nthaduleni Samuel Nethengwe ◽  
...  

South Africa is being confronted with an irregular power supply, leading to persistent load shedding due to aged and unreliable coal-fired power plants. Connected with coal as a generating source for electricity from fossil fuels are environmental concerns such as emissions of greenhouse gases and climate change impacts. Nuclear energy can allay the country’s dependence on coal as a source of energy. This article, therefore, reviews the feasibility of nuclear energy using a multicriteria analysis technique. A combination of Strengths, weaknesses, Opportunities, and Threats (SWOT) analysis and Analytical Hierarchy Process (AHP) was used to evaluate the external and internal factors that could either positively or negatively affect the country’s nuclear energy expansion drive. From the analysis, the country’s enabling laws and regulatory framework recorded the highest score of 39.2% under the strengths for the sector. In the case of the weaknesses, the high cost of construction and long construction framework recorded the highest weight, of 50.47%. Energy export and demand under the opportunities recorded a weight of 52.09%, ranking it as the highest opportunity for the sector. Seismic events were identified as the biggest threat for nuclear power expansion in the country, and the experts assigned a weight of 42.5% to this factor.


Author(s):  
Nikola Ćorović ◽  
Uroš Durlević

The use of nuclear energy in the world represents one of the main alternatives to fossil fuels. Significant greenhouse gas emissions from fossil fuel combustion could be replaced by cleaner energy such as nuclear. In this paper, by using Geographic Information Systems (GIS), available databases and Analytic hierarchy process (AHP), the results in the selection of the location for the construction of nuclear power plants (NPP) in Serbia were obtained. The research area includes zones between large rivers (Danube, Sava, Tisa, Velika Morava) with an area of 8757.45 km². An analysis of natural (seismicity, geological background, hypsometry, slope of the terrain, distance from faults, ground cover, land use method) and anthropogenic conditions (distance from the state border, settlements, roads and railways) was carried out, with the elimination of protected areas from further research due to of its ecological significance. After multi-criteria analysis, weighting coefficients were assigned for each criterion using the AHP method. The results showed that 0.02% of the area is suitable, and 8.68% partially suitable for the construction of nuclear power plants. This paper provides an adequate overview of the most suitable locations for the use of nuclear energy, so that the obtained results can be applied in further research by national services in charge of nuclear sciences.


2019 ◽  
Vol 13 (1) ◽  
pp. 1227-1236
Author(s):  
Greta-Marilena Vitioanu ◽  
Ileana Gavrilescu

Abstract Due to the depletion of fossil fuels and the degradation of the ecological balance, the transition of mobility to new ways of propelling means of transportation is one of the toughest themes of sustainability, debated as such and by scientific research. At the same time technological research has already proposed several forms of vehicle powering and the manufacturers have even offered the market a significant number of electrically propelled vehicles - the option with the greatest technical and economic potential for everything that will mean future transportation of people and freight. Unfortunately, the development of electrical mobility to its quasi-state is dependent on increasing the capacity of supplying enough electricity from the power industry. The objective of our study is to develop a model for the utilization of nuclear energy in view of the global expansion of e-mobility applications. In the context of increased demand for electricity - due to new e-mobility technologies and applications, nuclear power can become the most efficient and constant form of electricity generation. The research methodology is based on qualitative analyzes of new e-mobility applications and their diversification tendencies, but also on quantitative analysis based on a specialized questionnaire. The novelty of the research finds its exemplification in attempts to explain the importance of nuclear energy in the new context of climate change and at the same time proposing a hypothesis regarding the possible maintenance and / or refurbishment of nuclear power plants.


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