| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Excess letdown heat exchanger | Physics | The excess letdown heat exchanger provides a letdown flow path for coolant charged through the reactor coolant pump labyrinth seals if the normal letdown path through the regenerative heat exchanger is out of service. The high pressure letdown stream flows through the tubes while component cooling water flows through the shell. The tubes and tube sheet are austenitic stainless steel, and the shell is carbon steel. Tubes are welded to the tube sheet. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
