What are things you should do to avoid clogging in the Cooling Passage of Gas Turbines

If your Gas Turbine is most likely subject to contaminants of extremely small size. Your conventional filtering system is not able to prevent these from entering the compressor, and since you do no regular compressor wash with detergent (Gas Turbine Cleaners are available from Minco UK Ltd), these contaminants both reduce output from the GT quite significantly (might can reach lost up to 20% decreased) by fouling in the compressor, and it enters the cooling passages and gradually plug them.

To avoid the problems Our suggestion is that:

1. You change your filter system using both pre-filters and high-efficiency filters. This will significantly reduce the volume of contaminants entering the compressor.
2. You start regular compressor wash on-line. Our suggestion is daily with demin water only, and weekly with detergent. This will remove most of the contaminants which have entered the compressor.
3. Continuous monitoring of the problem you have by increasing temperature.

At one time or another you will have to do the overhaul, but we believe that it can be delayed by following our suggestion above and perhaps not even be necessary before an overhaul is scheduled regardless. This, however, a continuous monitoring will tell you, preferably using borescope.
For further details information, please feel free to contact us, we shall be glad to discuss with you.