A historical perspective of nuclear thermal-hydraulics - Chapter 2

Three main topics are concerned: (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) shall be seen as the pillars for the discipline. The attempt to forecast developments in the area has been pursued without constraints connected with the availability of funds and 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.