Figure 1: An attemperator is usually installed between the primary and secondary superheaters and/or reheaters in a combined cycle plant. It injects water to control the HP superheater or hot RH ...

Attemperator designs with flow-control elements in the steam path—the multinozzle probe style shown in Figure 2, for example—are particularly susceptible to such damage.

Attemperator components in the hot zone are at increased risk of thermal fatigue and shock. Using an FEA program, Tyco can identify where a crack may appear in, for example, ...

Temperature control is a big deal in Pittsburg, Texas, where summer afternoons average in the mid-90s and frequently top 100. At AEP/SWEPCO’s J. Robert Welsh Power Plant, however, the problem ...