scholarly journals Potencial de producción de energía eléctrica en México empleando la circulación del parque vehicular

Author(s):  
Felipe Castañeda-Olivares ◽  
Claudia Aguirre-Rodríguez

The production of electricity is a necessity of modern life and Mexico does not escape it. Mexico ranks 51st in the Global Electricity Competitiveness Index, according to World Economic Forum studies. Where the following sources of energy production are used. Conventional Technology: Combined Cycle, Conventional Thermoelectric, Carb, Turbo Gas, Internal Combustion, Nuclear Power. Clean and Renewable Energy: Hydroelectric, Wind, Geothermal, Solar Photovoltaic and Solar Thermal. Electrical power is also imported from the United States. The objective of this research is to make known other possibilities of generating electricity that have not been explored in Mexico or contemplated in the Program for the Development of the National Electrical System (PRODESEN, 2018-2032). The hypothesis put forward as a proposal is that the 38 million motor vehicles that exist and circulate on the country’s roads and highways can be used to generate electricity through piezoelectric generators and wind turbines. Based on the planning scenario estimates, the maximum integrated demand of the National Interconnected System (SIN) projects an average annual growth of 3.2% between 2018 and 2032. To achieve this growth, it is necessary to consider all the possibilities of energy production and its profitability.

2011 ◽  
Vol 133 (05) ◽  
pp. 30-33 ◽  
Author(s):  
Lee S. Langston

This article explores the increasing use of natural gas in different turbine industries and in turn creating an efficient electrical system. All indications are that the aviation market will be good for gas turbine production as airlines and the military replace old equipment and expanding economies such as China and India increase their air travel. Gas turbines now account for some 22% of the electricity produced in the United States and 46% of the electricity generated in the United Kingdom. In spite of this market share, electrical power gas turbines have kept a much lower profile than competing technologies, such as coal-fired thermal plants and nuclear power. Gas turbines are also the primary device behind the modern combined power plant, about the most fuel-efficient technology we have. Mitsubishi Heavy Industries is developing a new J series gas turbine for the combined cycle power plant market that could achieve thermal efficiencies of 61%. The researchers believe that if wind turbines and gas turbines team up, they can create a cleaner, more efficient electrical power system.


1974 ◽  
Vol 1 (1) ◽  
pp. 21-30 ◽  
Author(s):  
John T. Edsall

Nuclear fission reactors are widely regarded as the chief energy source of the future. This article holds that the hazards of such reactors, in comparison with other prospective energy sources, are unacceptably high. The biological effects of ionizing radiations, as analyzed in the recent BEIR Report (1972) of a committee of the U.S. National Academy of Sciences, are briefly reviewed; the effects include genetic mutations, induction of cancer, and developmental abnormalities. Hazards are encountered at many stages in the process of nuclear power production: in the mining and processing of uranium, in the design and operation of the reactors, and in the handling, shipping, and storage, of the huge quantities of radioactive wastes produced by the reactors. Grave questions have been raised concerning the safety of the emergency core-cooling systems of present reactors; and the planned breeder reactors, which will contain great quantities of plutonium-239, are likely to be even more hazardous. Storage of radioactive wastes, away from all risks of environmental contamination, in order to be acceptable must be secure for about half-a-million years. No place on Earth has yet been found for which such safety can be guaranteed. Hazards of theft, sabotage, and war, are formidable threats to the future of nuclear fission power.Use of fission power is not compulsory; present supplies of coal are adequate for two or three centuries, though its mining and use will require drastic steps to protect the environment, thereby raising costs. Alternative, and far less dangerously polluting, sources of large-scale energy production exist or can be developed: notably solar energy and probably nuclear fusion, where intensive research gives high promise of adequate systems for large-scale energy production within 20–30 years. Geothermal energy, though more limited in amount, is also promising. Great savings can also be made by reducing the extravagant use of energy, especially in such countries as the United States; and various conservation measures are indicated.


Author(s):  
Michael F. Keller

A recently patented hybrid technology may prove to be an energy game-changer. This innovative integrated combined cycle uses two fuels and a large gas (combustion) turbine in tandem with a small, efficient helium nuclear reactor to cleanly produce electrical power. The hybrid approach to energy sustainability combines the strengths of individual energy assets to yield an optimal solution to meet the planet’s needs. This integration is more effective than the sum of the individual technologies by themselves. The hybrid is able to efficiently use all of fuel resources available in the US in a single power plant. The hybrid-nuclear family of technologies is a fail-safe, environmentally friendly and evolutionary new direction for nuclear power and energy production.


MRS Bulletin ◽  
2001 ◽  
Vol 26 (9) ◽  
pp. 672-678 ◽  
Author(s):  
Siegfried S. Hecker

Plutonium symbolizes everything we associate with the nuclear age. It evokes the entire gamut of emotions from good to evil, from hope to despair, and from the salvation of humanity to its utter destruction. No other element bears such a burden. Its discovery in 1941, following the discovery of fission in 1938, unlocked the potential and fear of the nuclear age. During the Cold War, the primary interest in plutonium was to provide triggers for thermonuclear weapons that formed the basis of nuclear deterrence. Beginning in the 1950s, plutonium also became an integral part of the quest for nearly limitless electrical power. The end of the Cold War has dramatically altered the military postures of the United States and Russia, allowing each to reverse the engines fueling the nuclearweapons buildup. Now, both countries face the challenge of keeping the remaining stockpile of nuclear weapons safe and reliable without nuclear testing, as well as cleaning up nuclear contamination and preventing the spread of nuclear weapons and terrorism. Moreover, current concerns about energy availability and global warming have rekindled interest in nuclear power.


2020 ◽  
Vol 48 (4) ◽  
pp. 421-429
Author(s):  
Robert N. McCauley

Abstract Since the late 1950s, the rest of the world has come to use the dollar to an extent that justifies speaking of the dollar’s global domain. The rest of the world denominates much debt in U.S. dollars, extending U.S. monetary policy’s sway. In addition, in outstanding foreign exchange deals, the rest of the world has undertaken to pay still more in U.S. dollars: off-balance-sheet dollar debts buried in footnotes. Consistent with the scale of dollar debt, most of the world economic activity takes place in countries with currencies tied to or relatively stable against the dollar, forming a dollar zone much larger than the euro zone. Even though the dollar assets of the world (minus the United States) exceed dollar liabilities, corporate sector dollar debts seem to make dollar appreciation akin to a global tightening of credit. Since the 1960s, claims that the dollar’s global role suffers from instability and confers great benefits on the U.S. economy have attracted much support. However, evidence that demand for dollars from official reserve managers forces unsustainable U.S. current account or fiscal deficits is not strong. The so-called exorbitant privilege is small or shared. In 2008 and again in 2020, the Federal Reserve demonstrated a willingness and capacity to backstop the global domain of the dollar. Politics could constrain the Fed’s ability to backstop the growing share of the domain of the dollar accounted for by countries that are not on such friendly terms with the U.S.


Author(s):  
Ronald C. Lippy

The nuclear industry is preparing for the licensing and construction of new nuclear power plants in the United States. Several new designs have been developed and approved, including the “traditional” reactor designs, the passive safe shutdown designs and the small modular reactors (SMRs). The American Society of Mechanical Engineers (ASME) provides specific Codes used to perform preservice inspection/testing and inservice inspection/testing for many of the components used in the new reactor designs. The U.S. Nuclear Regulatory Commission (NRC) reviews information provided by applicants related to inservice testing (IST) programs for Design Certifications and Combined Licenses (COLs) under Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants,” in Title 10 of the Code of Federal Regulations (10 CFR Part 52) (Reference 1). The 2012 Edition of the ASME OM Code defines a post-2000 plant as a nuclear power plant that was issued (or will be issued) its construction permit, or combined license for construction and operation, by the applicable regulatory authority on or following January 1, 2000. The New Reactors OM Code (NROMC) Task Group (TG) of the ASME Code for Operation and Maintenance of Nuclear Power Plants (NROMC TG) is assigned the task of ensuring that the preservice testing (PST) and IST provisions in the ASME OM Code to address pumps, valves, and dynamic restraints (snubbers) in post-2000 nuclear power plants are adequate to provide reasonable assurance that the components will operate as needed when called upon. Currently, the NROMC TG is preparing proposed guidance for the treatment of active pumps, valves, and dynamic restraints with high safety significance in non-safety systems in passive post-2000 reactors including SMRs.


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