13-03: Evaluation of the Effect of Damages of Drift Eliminators on Their #N/A

13-03: Evaluation of the Effect of Damages of Drift Eliminators on Their #N/ATo improve the planning of maintenance of the drift eliminators of its counter flow natural draft cooling towers, EDF decided to run two campaigns of tests: the first one focused on the effect of the mechanical deterioration of drift eliminators. Because of fouling issues due to the use of untreated raw water as make up, the second test was applied on eliminators with a layer of about 1. 5 millimeter of fouling. For both tests, the CTI ATC 140 was

and new data from unpublished work done in the UK

as a combination of hypochlorite and peroxide

are the following: equipment selection

But uneven distribution leads to reduced cooling performance

There are several options available to exploit the benefits of the relationship between fan speed

As with any new material

Recently application of indirect seawater cooling has become popular particularly in the regions having scarcity of good quality water

can improve or adversely affect the plant electric power output

The paper will also explore the need for

Case Examples will be presented as well as implemented repair programs focused on this approach

Several typical examples will be presented along with appropriate charts and graphs to clarify proper application

The paper also discusses improvements that are underway to the biocide and scale-inhibitor feed systems