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A test stand for the evaluation of high efficiency mist eliminators
Paxton K Giffin1, Michael S Parsons, Charles A Waggoner
1Institute for Clean Energy Technology, Mississippi State University, 205 Research Blvd, Starkville, Mississippi 39759, USA. Giffin@icet.msstate.edu
The Review of Scientific Instruments
|November 7, 2012
Summary
High efficiency mist eliminators (HEME) effectively remove 99.5% of 1 μm aerosols. A new test stand evaluates HEME loading capacity and efficiency using hazardous waste surrogates, with or without spray cleaning.
Area of Science:
- Environmental Engineering
- Chemical Engineering
- Filtration Technology
Background:
- High efficiency mist eliminators (HEME) are crucial for reducing aerosol loads on downstream filters.
- HEME elements achieve high removal efficiency for small aerosol particles.
Purpose of the Study:
- To develop and present a test stand for evaluating the loading capacity and filtering efficiency of single HEME elements.
- To assess HEME performance with and without a water spray cleaning system.
Main Methods:
- A test stand was designed to challenge HEME elements with liquid and dried waste surrogates.
- Laskin and large dispersion nozzles were used to generate aerosols.
- Loading capacity was measured with and without a water spray cleaning system.
- Filtering efficiency was determined using dried waste surrogate aerosol and di-octyl phthalate.
Main Results:
- The test stand successfully evaluated HEME loading capacity and filtering efficiency.
- Representative performance data for HEME elements were obtained.
- The impact of a water spray cleaning system on HEME performance was assessed.
Conclusions:
- The developed test stand is capable of assessing HEME performance under realistic conditions.
- HEME elements demonstrate high efficiency in removing hazardous aerosols.
- The study provides valuable data for optimizing HEME performance in waste treatment facilities.
