A historical perspective of nuclear thermal hydraulics - Volume 1, Chapter 2

Three main topics are concerned in this chapter: (a) the definition of system thermal hydraulics, (b) a historical outline, (c) elements for reflection when planning researches or improvement activities. The proposal of Interim Acceptance Criteria for Emergency Core Cooling Systems in 1971 by US AEC (Unites States Atomic Energy Commission) is recognized as the triggering event for modern system thermal hydraulics. The complex codes and the foremost experimental programs (key ongoing projects are mentioned) constitute the pillars for the discipline. The attempt to forecast developments in the area has been pursued without constraints connected with the availability of funds, or considering potential industrial benefits or interests. Demonstrating the acceptability of current system thermal hydraulics limitations and training in the application of those codes are mentioned as the main challenges for forthcoming research activities.