scholarly journals Interim report on core physics and fuel cycle analysis of the pebble bed reactor power plant concept

1977 ◽  
Author(s):  
D.R. Vondy
Keyword(s):  
Power Plant ◽  
Fuel Cycle ◽  
Reactor Power ◽  
Interim Report ◽  
Pebble Bed ◽  
Pebble Bed Reactor ◽  
Fuel Cycle Analysis ◽  
Reactor Power Plant

scholarly journals Pebbles Making Waves

2008 ◽  
Vol 130 (02) ◽  
pp. 34-38
Author(s):  
Lee S. Langston
Keyword(s):  
South Africa ◽  
Power Plant ◽  
Packed Bed ◽  
Nuclear Fission ◽  
Reactor Power ◽  
Reactor Vessel ◽  
Pebble Bed ◽  
Pebble Bed Reactor ◽  
High Level ◽  
Reactor Power Plant

This paper describes various high-level nuclear researches including nuclear-fuelled pebbles that are being conducted across South Africa. The pebbles are ingenious industrial products, designed to passively limit the amount of heat unleashed by the nuclear fission reactions that drive the reactor. The spheres that give the pebble bed reactor its name enclose fissionable uranium inside layers that serve various roles, such as moderating fission, containing pressure, and accommodating deformation of the core. Nuclear-fuelled pebbles are introduced at the top of the reactor vessel and slowly wend their way down through the annular-packed bed under the action of gravity to the bottom of the reactor vessel. In a towering building at the headquarters of Nesca in Pelindaba, South Africa, reactor components are being tested for their ability to work with high-pressure helium. Those parts will go in the pebble bed modular reactor power plant to be constructed at Koeburg, near Cape Town. The plan of the pebble bed reactor power plant will use the helium coolant to run the turbine directly rather than heat a secondary fluid, as in a water reactor.

Pebble Bed Modular Reactor Power Plant Control Investigations

2000 ◽  
Vol 33 (18) ◽  
pp. 55-60
Author(s):  
H.W. Penzhorn ◽  
J. Viljoen ◽  
J.J. Grant
Keyword(s):  
Power Plant ◽  
Reactor Power ◽  
Pebble Bed ◽  
Power Plant Control ◽  
Reactor Power Plant ◽  
Plant Control

scholarly journals The Design of Turbomachinery for the Gas Turbine (Direct Cycle) High Temperature Gas Cooled Reactor Power Plant

1977 ◽  
Author(s):  
R. G. Adams ◽  
F. H. Boenig
Keyword(s):  
High Temperature ◽  
Power Plant ◽  
Gas Turbine ◽  
Power Conversion ◽  
Reactor Power ◽  
Working Fluid ◽  
Primary Coolant ◽  
Reactor Power Plant ◽  
Direct Cycle ◽  
High Temperature Gas

The Gas Turbine HTGR, or “Direct Cycle” High-Temperature Gas-Cooled, Reactor power plant, uses a closed-cycle gas turbine directly in the primary coolant circuit of a helium-cooled high-temperature nuclear reactor. Previous papers have described configuration studies leading to the selection of reactor and power conversion loop layout, and the considerations affecting the design of the components of the power conversion loop. This paper discusses briefly the effects of the helium working fluid and the reactor cooling loop environment on the design requirements of the direct-cycle turbomachinery and describes the mechanical arrangement of a typical turbomachine for this application. The aerodynamic design is outlined, and the mechanical design is described in some detail, with particular emphasis on the bearings and seals for the turbomachine.

Sign in / Sign up

Export Citation Format

Share Document