Effect of Microwave Pre-Processing of Pelletized Biomass on its Gasification and Combustion / Mikroviļnu Priekšapstrādes Ietekme Uz Granulētas Biomasas Gazifikācijas Un Degšanas Procesiem

I. Barmina; A. Līckrastiņa; J. Valdmanis; R. Valdmanis; M. Zaķe; A. Arshanitsa; G. Telysheva; V. Solodovnik

doi:10.2478/lpts-2013-0024

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Effect of Microwave Pre-Processing of Pelletized Biomass on its Gasification and Combustion / Mikroviļnu Priekšapstrādes Ietekme Uz Granulētas Biomasas Gazifikācijas Un Degšanas Procesiem

Latvian Journal of Physics and Technical Sciences

Volume 50 (2013): Issue 4 (August 2013)

By: I. Barmina, A. Līckrastiņa, J. Valdmanis, R. Valdmanis, M. Zaķe, A. Arshanitsa, G. Telysheva and V. Solodovnik

Open Access

|Sep 2013

Abstract

To effectively produce clean heat energy from biomass, microwave (mw) pre-processing of its different types - pelletized wood (spruce), herbaceous biomass (reed canary grass) and their mixture (50:50) - was carried out at the 2.45 GHz frequency with different durations of biomass exposure to high-frequency oscillations. To estimate the mw pre-processing effect on the structure, composition and fuel characteristics of biomass, its thermogravimetric (TG), infrared spectroscopy (FTIR) measurements and elemental analysis were made. The pre-processing is shown to enhance the release of moisture and low-calorific volatiles and the partial destruction of biomass constituents (hemicelluloses, cellulose), promoting variations in the elemental composition and heating values of biomass. The field-enhanced variations of biomass characteristics and their influence on its gasification and combustion were studied using an integrated system of a biomass gasifier and a combustor with swirl-enhanced stabilization of the flame reaction zone. The results show that the mw pre-processing of biomass pellets provides a faster weight loss at the gasification, and, therefore, faster ignition and combustion of the activated pellets along with increased output of heat energy at their burnout

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Articles in this issue

DOI: https://doi.org/10.2478/lpts-2013-0024 | Journal eISSN: 2255-8896 | Journal ISSN: 0868-8257

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Language: English

Page range: 34 - 47

Published on: Sep 17, 2013

Published by: Institute of Physical Energetics

In partnership with: Paradigm Publishing Services

Publication frequency: 6 issues per year

Keywords:

biomass pellets,

pre-processing,

gasification,

combustion characteristics,

heat energy production

Related subjects:

Physics,

Technical and applied physics

© 2013 I. Barmina, A. Līckrastiņa, J. Valdmanis, R. Valdmanis, M. Zaķe, A. Arshanitsa, G. Telysheva, V. Solodovnik, published by Institute of Physical Energetics
This work is licensed under the Creative Commons License.

Volume 50 (2013): Issue 4 (August 2013)