Upper bounds of fissile fuel yield with fusion breeders

1976 ◽  
Vol 54 (16) ◽  
pp. 1637-1645 ◽  
Author(s):  
A. A. Harms
Keyword(s):  
Neutron Spectrum ◽  
Power Output ◽  
Fuel Cycle ◽  
Production Capacity ◽  
Upper Bounds ◽  
Fuel Production ◽  
Fusion Breeder ◽  
Fissile Fuel Breeding ◽  
Energy Multiplication ◽  
System Power

The maximum fissile fuel production capacity of three conceptual fusion breeder systems is examined on the basis of the dominant isotopic-balance processes. Compact relationships involving system power output, plasma and energy multiplication, and parameters which describe the fuel cycle and neutron spectrum in the blanket are established. It is found that the fusion breeder, as characterized herein, possesses a substantial fissile fuel breeding capacity the extent of which is governed primarily by the neutron spectrum in the conversion blanket and the break-even condition of the plasma.

Efficiency of Advanced Ground Transportation Technologies

2002 ◽  
Vol 124 (3) ◽  
pp. 173-179 ◽  
Author(s):  
Frank Kreith ◽  
Ron E. West ◽  
Beth E. Isler
Keyword(s):  
Natural Gas ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Fuel Cycle ◽  
Primary Energy ◽  
Motor Vehicles ◽  
Fuel Production ◽  
Different Types ◽  
Transportation Technologies ◽  
Methanol Fuel Cell

This paper presents thermodynamic analyses of ten different scenarios for using natural gas to power motor vehicles. Specifically, it presents a comparison between different types of automotive vehicles using fuels made from natural gas feedstock. In comparing the various fuel-vehicle options, a complete well-to-wheel fuel cycle is considered. This approach starts with the well at which the feedstock is first extracted from the ground and ends with the power finally delivered to the wheels of the vehicle. This all-inclusive comparison is essential in order to accurately and fairly compare the transportation options. This study indicates that at the present time hybrid-electric vehicles, particularly those using diesel components, can achieve the highest efficiency among available technologies using natural gas as the primary energy source. Hydrogen spark ignition, all-electric battery-powered, and methanol fuel cell vehicles rank lowest in well-to-wheel efficiency because of their poor fuel production efficiencies.

Transitional Alternative Fuels and Vehicles Model

1997 ◽  
Vol 1587 (1) ◽  
pp. 10-18 ◽  
Author(s):  
Paul Leiby ◽  
Jonathan Rubin
Keyword(s):  
Alternative Fuels ◽  
Large Scale ◽  
Production Capacity ◽  
Alternative Fuel ◽  
Transitional Period ◽  
Vehicle Model ◽  
Fuel Production ◽  
Alternative Fuel Vehicles ◽  
Long Run

The Transitional Alternative Fuels Vehicle model simulates the use and cost of alternative fuels and alternative fuel vehicles over the period 1996 to 2010. It is designed to examine the transitional period of alternative fuel and vehicle use. It accounts for dynamic linkages between investments and vehicle and fuel production capacity, tracks vehicle stock evolution, and represents the effects of increasing scale and expanding retail fuel availability on the effective costs to consumers. Fuel and vehicle prices and choices are endogenous. Preliminary results that illustrate the role of potentially important transitional phenomena are discussed. This model extends previous, long-run comparative static analyses of policies that assumed mature vehicle and fuel industries. As a dynamic transitional model, it can help to assess what may be necessary to reach mature, large-scale, alternative fuel and vehicle markets, and what it would cost.

scholarly journals On Peat Production Capacity in Verkhoyansky District, Sakha (Yakutia) Republic

2018 ◽  
Vol 41 ◽  
pp. 01047 ◽  
Author(s):  
Vladimir Belyakov ◽  
Alexsandra Kuporova
Keyword(s):  
Moisture Content ◽  
Long Range ◽  
Solid Fuel ◽  
Experimental Work ◽  
Lake Water ◽  
Production Capacity ◽  
Fuel Production ◽  
Ecological Problems ◽  
Conventional Technology

The article analyzes the possible substitution of long-range coal with peat fuel in boilerhouses of Batagai settlement, the Sakha (Yakutia) Republic, and technical and ecological problems that arise. Potential in-situ resources for permafrost production of moulded solid fuel with peat are examined. The study introduces two options of peat fuel production for boilerhouses: peat milling and sod peat moulding. Experimental work on sod peat drying shows that sod peat can be cut and dried to the conditioned moisture content in northern Yakutia but it is inexpedient both technologically and ecologically. A flowsheet of sod peat hydromechanised production from lacustrine peat is presented. According to it peat mass is scarified, diluted with lake water, sucked in by a pump dredge, and then pumped through a sludge line onto the lakeside where it is dehydrated in geotubes to have moulding moisture. Dehydrated geotubes are cut and peat mass is loaded into a peat spreader which stir and shape it into cylindrical peat sods, then spread it on a drying field. Further the process follows the conventional technology of harrowing, ridging, and covering dried peat.

A New Type of Automatic Feeding Device for Biomass Briquetting Machine

2013 ◽  
Vol 365-366 ◽  
pp. 32-36
Author(s):  
Xian Fei Xia ◽  
Kai Wu ◽  
Qing Peng Zhu ◽  
Yu Sun ◽  
Qing Hai Jiang
Keyword(s):  
Production Efficiency ◽  
Energy Resource ◽  
Production Capacity ◽  
Energy Utilization ◽  
Fuel Production ◽  
Material Supply ◽  
New Type ◽  
Continuous Feed ◽  
High Degree ◽  
Continuous Material

Biomass is a kind of important renewable energy resource, while the solidification technology provides an effective way for its energy utilization. The current feeding device of the biomass briquetting machine in China is manual or semi-automated, with low production efficiency. A new kind of automatic feeding device has been designed to meet the continuous feed requirements of a production line with the production capacity of 10~12 T/h in this paper. The shaftless screw device can realize continuous material supply, and the batch hopper provide materials for different briquetting machine, at the same time the crank-rocker mechanism provides certain vibration to prevent material clogging. This device gives a uniform material supply with a high degree of automation, which can improve the biomass fuel production effectively proved by practice.

Research of Features of U-Pu-Th Fuel Cycle and its Use for Burning Up of Minor Actinides in Supercritical Water-Cooled Reactor With Fast Neutron Spectrum

2013 ◽  
Author(s):  
Alexander P. Glebov ◽  
Alexey V. Klushin ◽  
Yuriy D. Baranaev ◽  
Pavel L. Kirillov
Keyword(s):  
Neutron Spectrum ◽  
Spent Nuclear Fuel ◽  
Fuel Cycle ◽  
Minor Actinides ◽  
Resonance Neutron ◽  
Program Complex ◽  
Fuel Cycles ◽  
Supercritical Parameters ◽  
Supercritical Water Cooled Reactor ◽  
Fast Neutron Spectrum

Since 2006 year FSUE “SSC RF – IPPE” and OKB “Gidropress” are being collaborated on a project of a direct cycle reactor cooled by water of supercritical parameters. The vessel type reactor concept with a fast resonance neutron spectrum and a two-pass coolant flow scheme has been chosen as the basic version. Here analysis of fuel cycles for this reactor which MOX (U-Pu)-based fuel consists of WWER spent nuclear fuel and weapon plutonium is presented. Besides, effect of using of thorium and fuel assemblies without a sheath tube is investigated. The following two test tasks are calculated: 1) burning up of isotopes including minor actinides (Am and Cm), 2) nonuniformity of power density distribution on fuel pins. Two approaches such as the WIMS ACADEM program complex developed by IPPE and the Monte-Carlo based program are applied for these tasks.

Effect Of Load On Bar, Body And System Power Output In The Power Clean

2010 ◽  
Vol 24 ◽  
pp. 1 ◽  
Author(s):  
Tracie Haines ◽  
Jeffrey M McBride ◽  
Jared Skinner ◽  
Mark Woodall ◽  
Tony R Larkin ◽  
...  
Keyword(s):  
Power Output ◽  
Power Clean ◽  
System Power
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