The science of ageing well

摘要

Apressurized water reactor (PWR) power plant uses steam generators (SGs) to transfer heat from the reactor coolant water to the secondary coolant water to produce steam. SGs are very important components of a PWR plant. Each SG has a tube bundle consisting of several thousand tubes which facilitates the transfer of heat between the primary side water inside the tubes and the secondary side mixture of water and steam outside the tubes. The secondary coolant feed water enters the SG between 400°F (204℃) and 450°F (232℃) and leaves as steam.