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Publications


Peer Reviewed Scientific Journals | 2020

Applicability of Torrefied Sunflower Husk Pellets in Small and Medium Scale Furnaces

Kienzl N, Margaritis N, Isemin R, Zaychenko V, Strasser C, Kourkoumpas DS, Grammelis P, Klimov D, Larina O, Sytchev G, Mikhalev A. Applicability of Torrefied Sunflower Husk Pellets in Small and Medium Scale. Waste and Biomass Valorization. 2020;275:122882.

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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 < 400 kW, operated in a mode with low primary zone temperatures (< 850 °C), meet current emission limits. Regarding the future upcoming emission limits according to the European Medium Combustion Plant Directive, additional measures are required in order to comply with the dust limits.


Books / Bookchapters | 2020

Technische Optionen für die Umrüstung und Nachrüstung von Industrien mit Bioenergie

Rutz D, Janssen R, Reumerman P, Spekreijse J, Matschegg D, Bacovsky D, et al. Technische Optionen für die Umrüstung und Nachrüstung von Industrien mit Bioenergie. WIP Renewable Energies.2020

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Technical Reports | 2017

2016 Survey of Non-Starch Alcohol and Renewable Hydocarbon Biofuels Producers

Warner E, Bacovsky D, Schwab A. 2016 Survey of Non-Starch Alcohol and Renewable Hydocarbon Biofuels Producers. 2016 Survey of Non-Starch Alcohol and Renewable Hydocarbon Biofuels Producers. February 2017.

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Conference Papers | 2017

A novel approach for the implementation of TORrefaction in Residential and COMmunal heating Boilers (TORRECOMB)

Kourkoumpa DS, Kienzl N, Isemin R, Strasser C, Nikolopoulus N, Margaritis N, Panagiotis G. A novel approach for the implementation of TORrefaction in Residential and COMmunal heating Boilers (TORRECOMB). 5th Central European Biomass Conference (Poster). January 2017, Graz, Austria.

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Peer Reviewed Scientific Journals | 2017

Environmental trade-offs between residential oil-fired and wood pellet heating systems: forecast scenarios for Austria until 2030

Karner K, Kristöfel C, Enigl M, Strasser C, Schmid E. Environmental trade-offs between residential oil-fired and wood pellet heating systems: forecast scenarios for Austria until 2030. Renewable & Sustainable Energy Reviews. December 2017;80: 868-879.

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Technical Reports | 2017

IEA Bioenergy Task 39 Report on State of the Technology of Algae Bioenergy

Bacovsky D, Sonnleitner A, Laurens L, McMillan JD. IEA Bioenergy Task 39 Report on State of the Technology of Algae Bioenergy. 5th Central European Biomass Conference, Workshop Highlights of Bioenergy Research 2017 (oral presentation). January 2017, Graz, Austria.

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Conference Papers | 2017

Nitrogen Assessment in Small Scale Biomass Heating Systems

Enigl M, Strasser C, Hochbichler E, Schmidl C. Nitrogen Assessment in Small Scale Biomass Heating Systems. 25th European Biomass Conference & Exhibition (Poster). June 2017, Stockholm, Sweden.

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Conference Papers | 2017

Novel concepts for CO2 utilisation to produce value added products

Sonnleitner A, Dißauer C, Martini S, Drosg B, Meixner K, Rachbauer L, Lazarova Z, Herwig C, Kinger G, Kofler I, Strasser C. Novel concepts for CO2 utilisation to produce value added products. 5th Central European Biomass Conference (Poster). January 2017, Graz, Austria.

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Conference Papers | 2017

Optimisation of the post-consumer and demolition wood supply and value chain

Dißauer C, Kienzl N, Kunter A, Meirhofer M, Pointner C, Schwarzbauer P, Sommersacher P, Strasser C, Wellacher M. Optimisation of the post-consumer and demolition wood supply and value chain. 5th Central European Biomass Conference (Poster). January 2017, Graz, Austria.

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Conference Papers | 2017

Pyrolysis of sewage sludge to produce fuels and chemical feedstock

Wartha C, Kranner R, Meirhofer M. Pyrolysis of sewage sludge to produce fuels and chemical feedstock. 5th Central European Biomass Conference (Poster). January 2017, Graz, Austria.

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Technical Reports | 2016

Austria – Biofuels Technology, Research and Development

Bacovsky D, Sonnleitner A. Austria – Biofuels Technology, Research and Development. IEA Bioenergy Task 39 Newsletter. December 2016.

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Technical Reports | 2016

Biofuels in transport

Bacovsky D. Biofuels in transport. WPC Guide to Biofuels. September 2016.

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Conference Papers | 2016

Energetische Verwertung einer Feinfraktion aus der MBA durch pyrolytische Behandlung

Meirhofer M, Wartha C, Strasser C. Energetische Verwertung einer Feinfraktion aus der MBA durch pyrolytische Behandlung. Recy & DepoTech 2016 (poster). November 2016, Leoben, Austria.

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Conference Papers | 2016

Harmonised Greenhouse Gas Calculations for Electricity, Heating and Cooling from Biomass

Ludwiczek N, Bacovsky D, Sonnleitner A, Strasser C. Harmonised Greenhouse Gas Calculations for Electricity, Heating and Cooling from Biomass. e-nova 2016 (oral presentation). November 2016, Pinkafeld, Austria.

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Technical Reports | 2016

IEA Bioenergy Countries´ Report

Bacovsky D, Dissauer C, Enigl M, Ludwiczek N, Pointner C, Sonnleitner A, Verma VK. IEA Bioenergy Countries´ Report. IEA Bioenergy Countries´ Report. August 2016.

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Other Publications | 2016

Market integration of wood fuels and heating oil

Kristöfel C, Strasser C, Schmid E, Morawetz UB. Market integration of wood fuels and heating oil. 24th European Biomass Conference & Exhibition (poster). June 2016, Amsterdam, Netherlands.

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Conference contributions | 2016

Overview on advanced biofuels technologies

Bacovsky D. Overview on advanced biofuels technologies. Bioenergy Australia 2016. November 2016, Brisbane, Australia.

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Technical Reports | 2016

Production of advanced biofuels

Bacovsky D. Production of advanced biofuels. Nationaler Workshop Biotreibstoffe. September 2016.

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Technical Reports | 2016

Technology Overview

Strasser C. Technology Overview. New York State Wood Heat Report: An Energy, Environmental, and Market Assessment - Final Report. April 2016. Chapter 8; 141-206.

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Conference Papers | 2016

Thermochemische Behandlung eines niederkalorischen Reststoffes zur Gewinnung von Sekundärrohstoffen

Meirhofer M, Dißauer C, Strasser C, Kranner R, Wartha C. Thermochemische Behandlung eines niederkalorischen Reststoffes zur Gewinnung von Sekundärrohstoffen. e-nova 2016 (oral presentation). November 2016, Pinkafeld, Austria.

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Peer Reviewed Scientific Journals | 2015

Econometric analysis of the wood pellet market in Austria

Kristöfel C, Strasser C, Morawetz U, Schmid E. Econometric analysis of the wood pellet market in Austria. 12th International Conference On The European Energy Market, 20-22 May 2015. 20 August 2015, Lisbon, Portugal.

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