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	'longtitle_de' => 'GrateAdvance',
	'longtitle_en' => 'GrateAdvance',
	'content_de' => '<p>Flexibel einstellbare Rostsysteme sind wesentliche Voraussetzungen f&uuml;r Verbrennungsanlagen, die mit unterschiedlichen Typen und Qualit&auml;ten von Biomasse-Brennstoffen betrieben werden k&ouml;nnen und gleichzeitig geringe Emissionen und hohe Betriebssicherheit in Bezug auf Schlacke gew&auml;hrleisten. Das GrateAdvance-Projekt besch&auml;ftigt sich mit der Entwicklung von Biomasse-Kesselsystemen der n&auml;chsten Generation. Wissenschaftliches Ziel ist es, das Verst&auml;ndnis und die Modellierung der festen Brennstoffumwandlung im Brennstoffbett mit Fokus auf aschebezogene Verbindungen zu verbessern. Dadurch wird die Beschreibung von Verschlackungsmechanismen und die Auswirkungen von Betriebsparametern (Temperatur, Verweilzeit, St&ouml;chiometrie) auf Partikel- und Emissionsfreisetzung erm&ouml;glicht.</p>

<p>Die Ergebnisse werden in der Optimierung und im sp&auml;teren Scale-Up der Feuerung umgesetzt. Dar&uuml;ber hinaus wird ein neuartiges Regelungskonzept entwickelt, das sich an unterschiedliche Brennstoffeigenschaften anpasst, und ein Konzept f&uuml;r die Integration eines Elektroabscheiders zur Feinstaubabscheidung f&uuml;r gr&ouml;&szlig;ere Anlagen wird erarbeitet.</p>

<p><img alt="" src="/webroot/files/image/Projektseite/Grate%20Advance_1.jpg" /></p>
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	'content_en' => '<p>Flexibly adjustable grate systems are major prerequisites for combustion systems that can be operated with different types and qualities of biomass fuels, and to ensure low emissions and high operational security regarding slag handling at the same time. The GrateAdvance project deals with the development of next generation small scale biomass burner and boiler systems. Scientific object is to improve the understanding and modelling of the solid fuel conversion inside fuel bed with focus on ash-related compounds to describe slagging mechanisms and the impact of operational parameters (temperature, residence time, stoichiometry) on particle and emission release.</p>

<p>Results will be implemented in the optimization and in the subsequent scale-up of the combustion system. Furthermore, a novel control concept that is capable of adapting to varying fuel properties will be developed, and a concept for the integration of an electrostatic precipitator (ESP) for larger capacities is elaborated.</p>

<p><img alt="" src="/webroot/files/image/Projektseite/Grate%20Advance_1.jpg" /></p>
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	'image_1' => '/webroot/files/image/Kompetenzbereiche/Grate%20Advance.jpg',
	'image_1_caption_de' => 'Schlacke bei Verbrennung von Strohpellets',
	'image_1_caption_en' => 'Schlacke bei Verbrennung von Strohpellets',
	'image_1_credits_de' => '© BE2020, Heckmann',
	'image_1_credits_en' => '© BE2020, Heckmann',
	'image_2' => '',
	'image_2_caption_de' => '',
	'image_2_caption_en' => '',
	'image_2_credits_de' => '',
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	'logos' => '<p>Technische Universit&auml;t Graz, Institut f&uuml;r W&auml;rmetechnik<br />
Schmid Energy Solutions (Austria)<br />
Verenum Ingeneurb&uuml;ro f&uuml;r Verfahrens-, Energie-und Umwelttechnik<br />
Lucerne University of Applied Sciences<br />
Schmid Energy Solutions (Switzerland)<br />
Lulea University of Technology<br />
Umea University</p>
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	'finanzierung' => '<p>FFG: 9th ERA-NET Bioenergy Joint Call: Bioenergy Concepts</p>
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		'Projektleitung' => (int) 250,
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				'titel' => 'GrateAdvance - Advanced adjustable grate solutions for future fuel flexible biomass combustion technologies',
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				'autor' => 'Feldmeier S, Wopienka E, Schwarz M',
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				'citation' => 'Feldmeier S, Wopienka E, Schwarz M. GrateAdvance - Advanced adjustable grate solutions for future fuel flexible biomass combustion technologies. 5th Central European Biomass Conference, Workshop Highlights of Bioenergy Research 2017 (oral presentation). January 2017, Graz, Austria.',
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				'titel' => 'Innovative flexible grate solutions for future biomass combustion appliances',
				'subtitel' => '',
				'autor' => 'Feldmeier, S., Wopienka, E., Schwarz, M., Mehrabian Bardar, R.',
				'herausgeber' => '',
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				'citation' => 'Feldmeier, S., Wopienka, E., Schwarz, M., Mehrabian Bardar, R.: Innovative flexible grate solutions for future biomass combustion appliances. (European Biomass Conference and Exhibition 2017, Stockholm).',
				'abstract' => '<p>The energetic utilization of alternative fuels (short rotation coppice, miscanthus), agricultural by-products (straw, corn cobs) or biomass residues (nut shells, coffee grounds) becomes of increasing interest. Due to variations in fuel properties &ndash; and the ash content in particular &ndash; biomass fuels considerably influence the conditions in the combustion zone and especially in the fuel bed. Usually, state-of-the-art combustion appliances are optimized for a particular fuel quality and typically approved only for utilization of standardized wood pellets or wood chips. Research activities within the GrateAdvance project focus on fuel flexible grate technologies being capable of adapting conditions in the combustion zone by a systematic and targeted adjustment of grate parameters in order to minimize emissions and slagging problems, thus setting the basis for a new generation of biomass technologies. Moreover, a novel control concept will ensure optimal combustion conditions for any biomass fuel, and specifically adjust to relevant fuel properties.</p>
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				'titel' => 'Technology mapping of market-available small-scale combustion appliances',
				'subtitel' => '',
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				'jahr' => (int) 2019,
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				'abstract' => '<p>A broad range of different biomass combustion appliances dedicated to domestic heating is available on the market. Depending on the technology the impact of varying properties of biomass fuels on slag formation and emission release may vary. Aspects as the design of the grate section and the selection of individual boiler components as well as operational settings determine the applicability of biomass fuels. Apart from fuel properties also the fuel load on the grate, residence time, air distribution and geometry of grate and combustion chamber affect the degree of slag formation and emission release. Technology indexes determined by means of constructional measures enable a systematic comparison and &ndash; in a further step &ndash; an assessment of combustion appliances. In this work specific technology indexes were specified and applied to compare technological aspects, which will prospectively allow investigating the technological influence on the combustion performance.</p>
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				'titel' => 'Numerical simulation and experimental analysis of a novel small scale biomass grate firing system',
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				'citation' => 'Eßl M, Mehrabian R, Shiehnejad-Hesar A, Kelz J, Feldmeier S, Reiterer T, Anca-Couce A, Robert Scharler R. Numerical simulation and experimental analysis of a novel small scale biomass grate firing system. 27th European Biomass Conference & Exhibition (Poster). May 2019.',
				'abstract' => '<p>The presented grate firing system is a patented small scale screw burner, which is designed for high fuel flexibility. This work focuses on the numerical modelling of the boiler via CFD simulations. The in-house developed CFD models use an Euler &ndash; Lagrange approach to predict the thermal degradation of the fuel particles and the subsequent gas-phase reactions. The CFD models are validated with experimental data from a representative measurement campaign where the boiler is operated with softwood pellets and the composition of the flue gas is measured in the primary and secondary combustion zone as well as the boiler outlet. The simulation results agree well with the data acquired in the measurement campaigns.<br />
Keywords: CFD, simulation, combustion, small scale application, wood pellet</p>

<p>&nbsp;</p>
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