advances in heat transfer systems, such as nuclear or cell behavior trees including nuclear reactors cooled gas

摘要

887,881. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 18, 1960 [June 4, 1959], No. 17602/60. Class 39(4) A nuclear reactor has header tubes and adjacent parts of coolant tubes which are externally cooled and internally insulated. Fig. 1 shows a gas-cooled D 2 O moderated reactor having coolant tubes 3 and header tubes 4. The header tubes are immersed in tanks 8 through which flows cooling water or gas. Fig. 3 is a section across a header tube showing thermal insulation formed by a layer of stagnant coolant between the walls of the tubes and thin inner walls 7, 11 ; a layer of thermal insulation may be added. Different sections of the inner walls are joined by sliding joints or bellows to absorb thermal expansion ; these details are described with reference to Figs. 5 to 8 (not shown).