Výsledky vyhledávání - "Flemming Jappe Frandsen"

Accumulating and communicating research: Development of a Massive Open Online Course on ash

Autor: Flemming Jappe Frandsen

Publikováno v: Frandsen, F J 2023, ' Accumulating and Communicating Research: Development of a Massive Open Online Course on Ash ', Fuel, vol. 343, 127708 . https://doi.org/10.1016/j.fuel.2023.127708

Based on 30 years of research on ash and deposit formation, corrosion and trace element transformations in utility boilers fired with solid fuels covering the entire range from coal via biomass to waste fuels, a Massive Open Online Course (MOOC) on t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0bc6d96e70e916d1b8bff0c0cd6a883
https://doi.org/10.1016/j.fuel.2023.127708

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Influence of kaolin and coal fly ash addition on biomass ash deposition in an entrained flow reactor

Autor: Guoliang Wang, Jesper Naimi Funch Poulsen, Samira Naimi Funch Poulsen, Peter Arendt Jensen, Flemming Jappe Frandsen

Publikováno v: Wang, G, Poulsen, J N F, Poulsen, S N F, Jensen, P A & Frandsen, F J 2022, ' Influence of kaolin and coal fly ash addition on biomass ash deposition in an entrained flow reactor ', Fuel, vol. 313, 123041 . https://doi.org/10.1016/j.fuel.2021.123041

The ash deposition behavior when firing different biomass (pulverized wheat straw, wood, bark, and leaves), with and without K-capture additives (kaolin and coal fly ash) was investigated through combustion experiments in the DTU (Technical Universit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca44af27aa0b6b0bd659e22e4cbb77da
https://doi.org/10.1016/j.fuel.2021.123041

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Quantification of Release of Critical Elements, Formation of Fly Ash and Aerosols: Status on Current Understanding and Research Needs

Autor: Flemming Jappe Frandsen

Publikováno v: Jappe Frandsen, F 2017, Quantification of Release of Critical Elements, Formation of Fly Ash and Aerosols: Status on Current Understanding and Research Needs . in Proceedings 11th European Conference on Industrial Furnaces and Boilers . Elsevier, 11th European Conference on Industrial Furnaces and Boilers (INFUB11), Albufeira, Portugal, 17/04/2017 .
Technical University of Denmark Orbit

Deposit formation in utility boilers occurs via a number of consecutive steps; 1) release of critical elements like K, Na, Pb, Zn, S and Cl, 2) formation of gaseous species, fly ash and aerosols, 3) transport and adhesion of ash species, 4) deposit b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3a0af4f24a0dff0303bad2f158b7bc6a
http://orbit.dtu.dk/en/publications/quantification-of-release-of-critical-elements-formation-of-fly-ash-and-aerosols-status-on-current-understanding-and-research-needs(0a4cb83c-eca8-402d-9cc9-4bc5e9802333).html

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Adhesion Strength of Biomass Ash Deposits

Autor: Yashasvi Laxminarayan, Peter Arendt Jensen, Hao Wu, Martin Bøjer, Flemming Jappe Frandsen, Peter Glarborg

Publikováno v: Laxminarayan, Y, Jensen, P A, Wu, H, Bøjer, M, Jappe Frandsen, F & Glarborg, P 2016, Adhesion Strength of Biomass Ash Deposits . in Proceedings of 24th European Biomass Conference & Exhibition . 24th European Biomass Conference & Exhibition, Amsterdam, Netherlands, 06/06/2016 . https://doi.org/10.5071/24thEUBCE2016-2BV.1.49
Technical University of Denmark Orbit
Laxminarayan, Y, Jensen, P A, Wu, H, Bøjer, M, Jappe Frandsen, F & Glarborg, P 2015, Adhesion Strength of Biomass Ash Deposits . in Proceedings of The Nordic Flame Days 2015 . The Nordic Flame Days 2015, Copenhagen, Denmark, 06/10/2015 .

Ash deposition on boiler surfaces is a major problem encountered during biomass combustion. Ash deposition adversely influences the boiler efficiency, may corrode heat transfer surfaces, and may even completely block flue gas channels in severe cases

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29d2155a230285c5e1a96a2fc83270d7
https://orbit.dtu.dk/en/publications/b66ef792-0eb9-4c0a-a12f-828260bb5192

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Utilizing biomass and waste for power production—a decade of contributing to the understanding, interpretation and analysis of deposits and corrosion products

Autor: Flemming Jappe Frandsen

Publikováno v: Technical University of Denmark Orbit

Through the years, Danish utilities have gained significant knowledge on how to minimize or even avoid ash deposition problems in utility boilers, firing a worldwide suite of high-volatile bituminous coals. In the early 1990s, the Danish Government d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e0ae7b070b4330188d7d645e23c0311
https://doi.org/10.1016/j.fuel.2004.08.026

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Modeling the Use of Sulfate Additives for Potassium Chloride Destruction in Biomass Combustion

Autor: Hao Wu, Morten Nedergaard Grell, Jacob Boll Jespersen, Martti Aho, Flemming Jappe Frandsen, Peter Glarborg

Publikováno v: Technical University of Denmark Orbit
Wu, H, Grell, M N, Jespersen, J B, Aho, M, Jappe Frandsen, F & Glarborg, P 2013, Modeling the use of sulfate additives for potassium chloride destruction in biomass combustion . in Proceedings of the European Biomass Conference and Exhibition . EU BC &E 21st European Biomass Conference and Exhibition, Copenhagen, Denmark, 03/06/2013 .

Potassium chloride, KCl, formed from biomass combustion may lead to ash deposition and corrosion problems in boilers. Sulfates are effective additives for converting KCl to the less harmful K2SO4. In the present study, the decomposition of ammonium s

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