scholarly journals Prospects of and Requirements for Nuclear Power as a Contributor Toward Managing Greenhouse Gases

1998 ◽  
pp. 91-102
Author(s):  
J. A. Hassberger ◽  
R. N. Schock ◽  
T. H. Isaacs
Author(s):  
Kau-Fui Vincent Wong ◽  
Guillermo Amador

As society continues advancing into the future, more energy is required to supply the increasing population and energy demands. Unfortunately, traditional forms of energy production through the burning of carbon-based fuels are dumping harmful pollutants into the environment, resulting in detrimental, and possibly irreversible, effects on our planet. The burning of coal and fossil fuels provides energy at the least monetary cost for countries like the US, but the price being paid through their negative impact of our atmosphere is difficult to quantify. A rapid shift to clean, alternative energy sources is critical in order to reduce the amount of greenhouse gas emissions. For alternative energy sources to replace traditional energy sources that produce greenhouse gases, they must be capable of providing energy at equal or greater rates and efficiencies, while still functioning at competitive prices. The main factors hindering the pursuit of alternative sources are their high initial costs and, for some, intermittency. The creation of electrical energy from natural sources like wind, water, and solar is very desirable since it produces no greenhouse gases and makes use of renewable sources—unlike fossil fuels. However, the planning and technology required to tap into these sources and transfer energy at the rate and consistency needed to supply our society comes at a higher price than traditional methods. These high costs are a result of the large-scale implementation of the state-of-the-art technologies behind the devices required for energy cultivation and delivery from these unorthodox sources. On the other hand, as fossil fuel sources become scarcer, the rising fuel costs drive overall costs up and make traditional methods less cost effective. The growing scarcity of fossil fuels and resulting pollutants stimulate the necessity to transition away from traditional energy production methods. Currently, the most common alternative energy technologies are solar photovoltaics (PVs), concentrated solar power (CSP), wind, hydroelectric, geothermal, tidal, wave, and nuclear. Because of government intervention in countries like the US and the absence of the need to restructure the electricity transmission system (due to the similarity in geographical requirements and consistency in power outputs for nuclear and traditional plants), nuclear energy is the most cost competitive energy technology that does not produce greenhouse gases. Through the proper use of nuclear fission electricity at high efficiencies could be produced without polluting our atmosphere. However, the initial capital required to erect nuclear plants dictates a higher cost over traditional methods. Therefore, the government is providing help with the high initial costs through loan guarantees, in order to stimulate the growth of low-emission energy production. This paper analyzes the proposal for the use of nuclear power as an intermediate step before an eventual transition to greater dependence on energy from wind, water, and solar (WWS) sources. Complete dependence on WWS cannot be achieved in the near future, within 20 years, because of the unavoidable variability of these sources and the required overhaul of the electricity transmission system. Therefore, we look to nuclear power in the time being to help provide predictable power as a means to reduce carbon emissions, while the other technologies are refined and gradually implemented in order to meet energy demand on a consistent basis.


Author(s):  
Hamad Alwashmi ◽  
Jay F. Kunze

In many parts of the world, drinking water is not available except through desalination. Most of these areas have an abundance of solar energy, with few cloudy periods. Energy is required for desalination and for producing electricity. Traditionally this energy has been supplied by fossil fuels. However, even in those parts of the world that have abundant fossil fuels, using them for these purposes is being discouraged for two reasons: 1) the emission of greenhouse gases from combustion of fossil fuels, and 2) the higher value of fossil fuels when used for transportation. Nuclear power and solar power are both proposed as replacements for fossil fuels in these locations. Both of these energy systems have high capital costs, and negligible fuel costs (zero for solar) Instead of these two primary forms of energy competing, this paper shows how they can compliment each other, especially where a significant part of the electricity demand is used for desalination.


Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3452 ◽  
Author(s):  
Paul Koltun ◽  
Alfred Tsykalo ◽  
Vasily Novozhilov

This study describes a life cycle assessment (LCA) of a fourth generation (4G) nuclear power plant. A high temperature helium cooled reactor and gas turbine technology with modular helium reactor (GT-MHR) is used in this study as an example. This is currently one the safest design of a nuclear power plant. The study also takes into account impact of accidents and incidents (AI) which happened around the world at nuclear power generation facilities. The adopted method for the study is a hybrid LCA analysis. The analysis of each phase of the life cycle was done on the basis of process chain analysis (PCA). Where detailed data were not available, the Input/Output (I/O) databases was employed. The obtained results show that greenhouse gases (GHG) emissions and energy intensity per unit of electricity production are relatively low. In fact, these are even lower than emissions from a number of renewable energy sources. The results show considerably different greenhouse gases (GHG) emissions and energy intensity per unit of electricity production when effects of AI are taken into account.


1994 ◽  
Vol 5 (2) ◽  
pp. 95-103
Author(s):  
R. Hawley ◽  
W. Turner

There are many environmental benefits arising from the generation of electricity from nuclear power. These are accompanied by a minimal detrimental environmental impact, which is strictly regulated and monitored to a far greater degree than any other comparable industry. Because it does not produce greenhouse gases or acid rain emissions, the generation of electricity from nuclear energy is a vital component of a sustainable energy future for our planet.


2015 ◽  
Vol 36 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Wojciech Stanek ◽  
Jan Szargut ◽  
Zygmunt Kolenda ◽  
Lucyna Czarnowska

Abstract The paper presents a comparison of selected power technologies from the point of view of emissions of greenhouse gases. Such evaluation is most often based only on analysis of direct emissions from combustion. However, the direct analysis does not show full picture of the problem as significant emissions of GHG appear also in the process of mining and transportation of fuel. It is demonstrated in the paper that comparison of power technologies from the GHG point of view has to be done using the cumulative calculus covering the whole cycle of fuel mining, processing, transportation and end-use. From this point of view coal technologies are in comparable level as gas technologies while nuclear power units are characterised with lowest GHG emissions. Mentioned technologies are compared from the point of view of GHG emissions in full cycle. Specific GHG cumulative emission factors per unit of generated electricity are determined. These factors have been applied to simulation of the influence of introduction of nuclear power units on decrease of GHG emissions in domestic scale. Within the presented simulations the prognosis of domestic power sector development according to the Polish energy policy till 2030 has been taken into account. The profitability of introduction of nuclear power units from the point of view of decreasing GHG emissions has been proved.


Author(s):  
Michael H. Fox

Nuclear power is considered by many to be an old technology locked in the past— they say the future is with solar and wind. Commercial nuclear power began in 1951 when Russia built the first civilian nuclear power reactor, followed by the British in 1956 and the Americans in 1957. In the 1960s and 1970s, nuclear power plants blossomed all over the world. There were 42 reactors in the United States in 1973; by 1990 there were 112. Some of these were closed, so by 1998 there were 104 operating nuclear reactors (the same number operating at the end of 2012) providing about 100 GWe (gigawatts electric ) to the grid. Worldwide, there were 432 operating nuclear reactors as of mid-2013. Nuclear reactors have been providing about 20% of the electricity in the United States for over 20 years, with no emissions of carbon dioxide (CO2 ). France gets nearly 75% of its electricity from nuclear power, the highest proportion of any nation. Germany and Japan each got more than 25% of their electricity from nuclear power in 2010; though Germany shut down about half of its reactors, Japan temporarily shut down all of its reactors, and both are considering permanently closing down their reactors after the accident in Fukushima, Japan, in 2011. So nuclear power has been providing electricity for over 50 years and plays a major role in the energy mix for a number of countries. But nuclear power is also critically important for an energy future that will meet our electrical power needs with minimal production of greenhouse gases and benign effects on the environment. We must go back to the future if we want to make serious inroads into reducing greenhouse gases and global warming. To see why nuclear power is critical for the future, let’s begin our journey by touring a nuclear power plant. The Wolf Creek nuclear power plant sits on the flat plains of Kansas about 60 miles south of Topeka and 4 miles from Burlington, about 200 miles east of the wheat fields I farmed as a kid. A 5,090-acre lake filled with crappie, walleye, large and smallmouth bass, and other game fish provides cooling water for the reactor and also provides a fishing mecca for Kansans. The 10,500-acre site, including the reactor complex and the lake, has about 1,500 acres of wildlife habitat, and about one-third is leased to area farmers and ranchers. The plant itself takes up less than half a square mile. The lake provides habitat for waterfowl, as well as for bald eagles and osprey. It is hard to imagine that electricity for 800,000 people is generated in this pristine area of farmland and nature preserve.


Author(s):  
John Evans

Approaches towards substituting fossil fuel sources of their products, energy and petrochemicals are elaborated. Synthesis gas (CO/H2) provides an intermediate for reconverting waste (from plastics and biomass) as well as carbon fuels into petrochemicals from methanol to petrol to waxes. Energy sources such as nuclear power and photovoltaic cells are explained. Modes of forming hydrogen and avoiding the release of greenhouse gases to afford a green fuel are explained. Electrochemical methods provide secondary energy sources are alternatives are compared: e.g. by powering transport using fuel cells or batteries. The demands of these technologies on the supplies of key elements like lithium and cobalt are discussed to understand whether developments may or may not be sustainable.


Author(s):  
V. G. Lisienko ◽  
Yu. N. Chesnokov ◽  
A. V. Lapteva

The XXIst conference on climate, held in Paris in 2015, set coordination of efforts of all the countries as an object to reduce greenhouse gases emissions. To realize the conference decisions, it is necessary to implement technologies ensuring reduction of carbon dioxide forming in every industry. Steel industry is one of its sources. A proposed in publications technology of production of carbon-free steel for nuclear power engineering, based on reducing of iron oxides by aluminum in the process of melting considered. As per authors opinion, since the carbon of coke was excluded out of the process of steel production by the technology, it results in exclusion of greenhouse gases emissions. The purpose of the work was to assess the carbon footprint of the technology taking into account emissions of carbon-containing gases in the previous processes. It was shown that steel production by the analyzed technology with metallic aluminum application for iron oxides reduction has a rather considerable carbon footprint despite the practical absence of carbon dioxide emissions directly in the process of its smelting. It is caused by a large volume of greenhouse gases emissions in the neighbored sectors of production of energy, raw materials and materials used for steel production and exceeds 4500 kg of carbon dioxide per 1 t of steel smelted by the technology. To assess the value of carbon footprint at creation of new and perfection of existing technological processes of goods production in ferrous metallurgy and other industries of economy, it was proposed to take into account its value along the whole chain of previous and neighbored production sectors.


Author(s):  
John D. Rubio

The degradation of steam generator tubing at nuclear power plants has become an important problem for the electric utilities generating nuclear power. The material used for the tubing, Inconel 600, has been found to be succeptible to intergranular attack (IGA). IGA is the selective dissolution of material along its grain boundaries. The author believes that the sensitivity of Inconel 600 to IGA can be minimized by homogenizing the near-surface region using ion implantation. The collisions between the implanted ions and the atoms in the grain boundary region would displace the atoms and thus effectively smear the grain boundary.To determine the validity of this hypothesis, an Inconel 600 sample was implanted with 100kV N2+ ions to a dose of 1x1016 ions/cm2 and electrolytically etched in a 5% Nital solution at 5V for 20 seconds. The etched sample was then examined using a JEOL JSM25S scanning electron microscope.


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