Page 173 - Managing Global Warming

136 Managing Global Warming

Fig. 4.19 (A) Simplified schematic diagram of Advanced Gas-cooled Reactors (AGRs)
(Author: M. Woland, https://commons.wikimedia.org/wiki/File:AGR_reactor_schematic.svg;
Accessed 28 January 2016) [1]: (1) Charge tubes; (2) control rods; (3) graphite moderator;
(4) fuel assemblies; (5) concrete pressure vessel and radiation shielding; (6) gas circulator;
(7) water; (8) water circulator; (9) heat exchanger; and (10) steam. Heat exchanger is contained
within steel-reinforced concrete combined pressure vessel and radiation shield; and (B) AGR
ribbed fuel element with hollow fuel pellet (Hewitt and Collier [10]) [1].