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New evaluation strategies regarding slag prediction in pellet boilers
- Schoen, Claudia (author)
- Hartmann, Hans (author)
- Schwabl, Manuel (author)
- show more...
- Feldmeier, Sabine (author)
- Dahl, Jonas (author)
- Rathbauer, Josef (author)
- Vega, Daniel (author)
- Oehman, Marcus (author)
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- (creator_code:org_t)
- 2014
- 2014
- English.
- In: Papers of the 22nd european biomass conference. ; , s. 368-372
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- Pellet boilers are widely used for heat production. In most cases only wood pellets with low ash content are suitable for these appliances due to the increased risk of slagging. The ash fusion test (AFT) is the only standardized method currently available for the prediction of slagging but it frequently failed when solid biofuels were investigated. Therefore different laboratory methods for the prediction of slagging were applied in order to identify the most suitable method for reliable prediction of slagging tendencies. Three laboratory test methods were considered in this investigation: a rapid slag test (1), the so-called "CIEMAT method" (2) and the "slag analyser" (3). The suitability of the obtained results was validated by practical combustion tests in up to nine different pellet boilers. As the most promising method the slag analyser was identified. It will be further developed with the aim to be proposing as an additional standard method for determination of slag related problems in fixed bed combustion systems.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Keyword
- pellet boilers
- slag prediction
- ash melting behaviour
- laboratory tests
Publication and Content Type
- ref (subject category)
- kon (subject category)
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