scholarly journals Fluidized bed incineration system for U. S. Department of Energy Defense Waste, July--December 1977

1978 ◽  
Author(s):  
D.L. Anderson ◽  
F.G. Meyer ◽  
P.K. Feng
Keyword(s):  
Fluidized Bed ◽  
Department Of Energy ◽  
Fluidized Bed Incineration

Statistical Analysis of Operation Data and Automatic Control on Fluidized Bed Incineration Plant with Dryer

1993 ◽  
Vol 28 (11-12) ◽  
pp. 341-345
Author(s):  
Shigeki Minami ◽  
Hidekazu Nagasawa ◽  
Yoshinori Saito ◽  
Motoharu Yamagishi ◽  
Masakatsu Hiraoka ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Fluidized Bed ◽  
Fuzzy Theory ◽  
Exhaust Gas ◽  
Furnace Temperature ◽  
Incineration Plant ◽  
Commercial Plant ◽  
Dried Sludge ◽  
Fluidized Bed Incineration ◽  
Plant Control

Continuous operation data were obtained on a fluidized bed incineration plant with dryers, and two autoregressive models were then prepared through statistical analysis of the data. Based on the results, an automatic plant control system using fuzzy theory was designed. An incinerator system of this type is characterized by energy efficiency, for which optimum and stable moisture control of the dried sludge is important. The large difference in time constants between incinerator and dryers makes energy saving difficult. Based on these analyses and design, control operations at a commercial plant with a capacity of 150 wet-tons/day were studied. It was confirmed that reduction of auxiliary fuel consumption and reduction of CO and NOx in the exhaust gas were optimized, while the moisture content of dried sludge and the furnace temperature were kept stable.

Status Report—Advanced Heat Exchanger Technology for a CCGT Power Generation System

1983 ◽  
Vol 105 (2) ◽  
pp. 348-353 ◽  
Author(s):  
D. E. Wright ◽  
L. L. Tignac
Keyword(s):  
Power Generation ◽  
Heat Exchanger ◽  
Fluidized Bed ◽  
Ceramic Materials ◽  
Department Of Energy ◽  
Test Facility ◽  
Status Report ◽  
Test Results ◽  
Generation System ◽  
Power Generation System

Rocketdyne is under contract to the Department of Energy for the development of heat exchanger technology that will allow coal to be burned for power generation and cogeneration applications. This effort involves both atmospheric fluidized bed and pulverized coal combustion systems. In addition, the heat exchanger designs cover both metallic and ceramic materials for high-temperature operations. This paper reports on the laboratory and small AFB test results completed to date. It also covers the design and installation of a 6×6 ft atmospheric fluidized bed test facility being used to correlate and expand the knowledge gained from the initial tests. The paper concludes by showing the direction this technology is taking and outlining the steps to follow in subsequent programs.

Fluidized-bed incineration of paper pellets

1994 ◽  
Vol 35 (1) ◽  
pp. 1-23 ◽  
Author(s):  
S.C. Saxena ◽  
A.N. Kasi
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Incineration

Fluidized-bed incineration of refuse-derived fuel pellets

1993 ◽  
Vol 7 (2) ◽  
pp. 273-278 ◽  
Author(s):  
S. C. Saxena ◽  
N. S. Rao
Keyword(s):  
Fluidized Bed ◽  
Fuel Pellets ◽  
Refuse Derived Fuel ◽  
Fluidized Bed Incineration

scholarly journals Analysis of Powder Airborne Release Fractions for Vessel Ruptures

2019 ◽  
Vol 141 (3) ◽  
Author(s):  
James E. Laurinat ◽  
Steve J. Hensel
Keyword(s):  
Fluidized Bed ◽  
Pacific Northwest ◽  
Three Dimensional ◽  
Initial Pressure ◽  
Department Of Energy ◽  
Nuclear Facilities ◽  
Powder Bed ◽  
Pacific Northwest Laboratory ◽  
Vessel Volume ◽  
Low Pressures

The Department of Energy (DOE) handbook for airborne releases from nonreactor nuclear facilities bases its bounding airborne release fraction (ARF) for pressurized powders on tests conducted at Pacific Northwest Laboratory (PNL). An analysis is presented that correlates the ARF from these tests. The amount of powder that becomes airborne is correlated in terms of an adjusted airborne release fraction (AARF) equal to the product of the powder entrainment from the powder bed and the ratio of the total vessel volume to the volume occupied by the powder bed. Powder entrainments and release fractions at low pressures are correlated using a fluidized bed analogy. The analysis shows that the entrainment is enhanced by a sonic shock if the pressure prior to the rupture exceeds approximately 0.329 MPa (33 psig). A secondary, three-dimensional shock is predicted to occur at an initial pressure of approximately 2.39 MPa (332 psig). A correlation based on this analysis is used to predict the ARF for ruptures of vessels containing plutonium oxide. It is assumed that the oxide is pressurized by hydrogen that is radiolytically generated from adsorbed moisture.

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