Applicability of Torrefied Sunflower Husk Pellets in Small and Medium Scale Furnaces
| Autor: | Norbert Kienzl, Olga Larina, Dimitrios-Sotirios Kourkoumpas, Dmitry Klimov, Victor Zaychenko, Aleksandr Mikhalev, R. L. Is’emin, Panagiotis Grammelis, Christoph Strasser, Nikolaos Margaritis, George Sytchev |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Environmental Engineering food.ingredient Renewable Energy Sustainability and the Environment 020209 energy Sunflower oil Pellets 02 engineering and technology Raw material Torrefaction Pulp and paper industry Combustion 01 natural sciences Husk food Biofuel 010608 biotechnology 0202 electrical engineering electronic engineering information engineering Environmental science Heat of combustion Waste Management and Disposal |
| Zdroj: | Waste and Biomass Valorization. 12:2579-2596 |
| ISSN: | 1877-265X 1877-2641 |
| Popis: | The aim of this paper is to test the applicability of upgraded agricultural biomass feedstock such as torrefied sunflower husks during combustion in small and medium heating applications. Sunflower husk is formed in large quantities at enterprises producing sunflower oil and can be used as biofuel. However, big problems arise due to the low bulk density of husks and the rapid growth of ash deposits on the heating surfaces of boilers. In order to solve these problems, it was proposed to produce pellets from husks, and to subject these pellets to torrefaction. After torrefaction, net calorific value was increased by 29% while the risk of high temperature corrosion of boilers was reduced. Signs of ash softening neither occurred in combustion of raw nor in combustion of torrefied sunflower husk pellets. High aerosol emissions, already present in raw sunflower husk pellets, could not be mitigated by torrefaction. First combustion results at medium scale furnaces indicated that sunflower husk pellets (both raw and torrefied) in a commercial boiler |
| Databáze: | OpenAIRE |
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