Experimental investigation of downdraft gasifier at various conditions

Kirsanovs, Vladimirs; Blumberga, Dagnija; Veidenbergs, Ivars; Rochas, Claudio; Vīgants, Edgars; Vīgants, Ģirts

doi:10.1016/j.egypro.2017.08.321

Cited by 49 publications

(20 citation statements)

References 14 publications

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“…In light of the low tar content downdraft gasifier has been fruitful for working motors. In the downdraft gasifier air contacts the pyrolyzing biomass before it contacts the roast and supports a fire like the fire which is created the warmth from the consuming volatiles keeps up the pyrolysis and after this marvel happens with in a gasifier [8] and the restricted air gracefully in the gasifier is quickly used, so the fire gets more extravagant as pyrolysis continues and toward the finish of the pyrolysis zone and the gases comprise for the most part of about equivalent pieces of CO2, H2O, CO, and H2 and we call this fire in a constrained air flexibly "flaring pyrolysis‖ and the blazing pyrolysis delivers the majority of the flammable gases produced during downdraft gasification and at the same time devours 99% of the tars and it is the key instrument for gas age in downdraft gasifier [9].…”

Section: Operation Of Downdraft Gasifiermentioning

confidence: 99%

Pilot Study of Downdraft Gasifier

Khadse¹

2020

IJRAT

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Now a days world needs a non-renewable energy source like fossil fuel, at ugly rates, that has hyperbolic the significant development in renewable energy sources. Biomass is one such supply of renewable energy that is copiously out there in worlds within the sort of industrial and agricultural products. Gasification is the process of that convert the biomass into the fuel like combustible gas. These produced gases can be used in various applications. Downdraft Gasifier is one of the best suited types of gasifier for gasification process to produces the combustible gases from biomass. Because of its simple design and advantages like flexibility in feed stock, good process management, minimum tar produced. the concept of gasifier style ought to be in such some way that it will convert the solid biomass such as wood chips. Wooden blocks, Soyabean husk etc. wastes into the shape clean product gases.

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Section: Operation Of Downdraft Gasifiermentioning

confidence: 99%

Pilot Study of Downdraft Gasifier

Khadse¹

2020

IJRAT

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“…Due to the small design criteria, only the fixed bedding of the three types can be operated effectively. Within the fixed bedding, ascension gas generator, the pyrolysis gas [12], and the supplement used for gasification flows counter to the fuel through the generators. If the fresh fuel is poured into the reactor through the top, the supplement of gasification (air, oxygen or steam) arrives into the reaction area from above the gate holding the fuel column.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Some Operating Parameters Required for the Development of Fixed Bed Small Scale Pyrolysis Plant

Bacskai

Madar²,

Fogarassy

et al. 2019

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In recent years, we have read a lot of research aimed at creating a small, easy-to-mobilize pyrolysis unit. But these devices were not efficiently designed. According to literature data, small equipment (5.0–50 kW) has to be considered differently on the combustion aspects, compared to a larger pyrolysis unit. The main purpose of our research is to determine the operating characteristics of a small fixed bedding CHP (combined heat and power) pyrolysis power plant. At the design stage, it is also critical to know the properties of the biomass (usually different biological wastes) used on the input side. The use of a wide diversity of biomass waste may result in the volume of material remains and the energy produced is not usable in the right form. To obtain a clear picture of the combustion conditions, a fixed bedding pilot pyrolysis device was made. With the measurements in the experimental apparatus, we have a clearer picture of the changes in some of combustion parameters. We have examined exactly how the size and hardness of biomass materials affect the efficiency of pyrolysis. By modelling the “mass change”—with the knowledge of the material content, physical characteristics, and the parameters of the pyrolysis equipment—the amount of the expected material remains, and combustion conditions can be predicted with a mathematical function. We have found an appropriate mathematical model (R2 = 0.8758) to describe the relationship between gas production and material structure for a given period.

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“…En los enfoques anteriores se destaca la falta de integralidad, pues cada uno de ellos describe el proceso considerando una parte de los complejos procesos que tienen lugar dentro del reactor, lo que conduce a errores que aportan los modelos de origen químico-físico del proceso de gasificación, por lo que sugiere la idea de la realización de experimentos que permitan elaborar modelos para la operación de los procesos, siendo los errores obtenidos dependientes de la representatividad del tipo de modelo. Entre ellos se encuentra el modelado por técnicas de regresión lineal realizado por Vladimir Kirsanovs y colaboradores (Kirsanovs et al 2017). En este trabajo el autor realiza una investigación experimental del proceso de gasificación en una planta real de 400 kW con el fin de caracterizar indicadores de eficiencia de la operación.…”

Section: Introductionunclassified

Modelado por redes neuronales artificiales de los indicadores de desempeño de operación en instalaciones de gasificación termoquímica downdraft

Gualotuña

Mera

Ruiz

2019

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<p>En el trabajo se presentan resultados investigativos obtenidos por los autores en el modelado de indicadores de desempeño de la operación de instalaciones de gasificación de la biomasa con ayuda de redes neuronales artificiales, a partir de la clasificación de la información derivada del análisis sistémico de su operación. Se realizó el estudio bibliográfico de los trabajos de investigaciones previos relacionados. A partir de un plan experimental 3N con tres réplicas se elaboran, utilizando las técnicas de las redes neuronales, cuatro modelos correspondientes a respectivos indicadores de desempeño, los que se comparan con los obtenidos por modelos de regresión no lineal. Como biomasa se utiliza el Oryza sativa.</p>

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Experimental investigation of downdraft gasifier at various conditions

Cited by 49 publications

References 14 publications

Pilot Study of Downdraft Gasifier

Pilot Study of Downdraft Gasifier

Modeling of Some Operating Parameters Required for the Development of Fixed Bed Small Scale Pyrolysis Plant

Modelado por redes neuronales artificiales de los indicadores de desempeño de operación en instalaciones de gasificación termoquímica downdraft

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