Low dust resistivity in an electrostatic precipitator means dust is readily collectable, but re-entrainment can become a problem and precipitator performance is compromised. On the other hand, high dust resistivity results in difficult-to-charge particles and back corona issues that can also compromise precipitator performance. Neundorfer can assist with avoiding either extreme by analyzing and predicting coal, ash and particle resistivity for predictive performance modeling of electrostatic precipitators (all tests are conducted in our in-house laboratory in accordance with IEEE Standard 584):
- Helps to understand processes contributing to high outlet emissions (i.e. opacity), using this information to create solutions
- Indicates actions that can improve performance and how much improvement to expect
- Provides quantitative resistivity input into precipitator performance models (through the Neundorfer predictive performance modeling service)
- Delivers customized reporting and recommendations to improve collection efficiency
- Creates criteria of precipitator performance input into fuel purchases or other process changes
Neundorfer can predict resistivity based on specific temperatures, fuel types, usage of conditioning agents and other conditions unique to each ESP configuration, helping out customers pinpoint the fly ash resistivity "sweet spot" to optimize collection efficiency and ESP performance.
How To Get Started
Download the Laboratory Services document (at the right) for instructions to provide coal or dust samples from your precipitator as well as service rates.