Using Biomass Gasification for Small Scale Power Generation Systems: Specifications of the Conceptual Framework

Resende, F. O.; Silva, Valter; Mendonça, Miguel; Barbosa, Alejandro; Brito, Paulo; Azevedo, João; Almeida, António; Gomes, Helder

doi:10.1109/icrera47325.2019.8996828

Cited by 3 publications

(3 citation statements)

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“…The dimensions of the gasifier are calculated according to the required gas production capacity. The gasifier is intended to supply producer gas to the power generation set equipped with a 4-stroke, spark ignition, internal combustion engine, with a displaced volume, V d , of 460 cm 3 , and running at a constant rotational speed, n, of 3000 rpm to assure the electrical power generation with grid frequency of 50 Hz. For this conditions, assuming an engine volumetric efficiency, h v , of 0.8 [30], the engine inlet flow of air-fuel mixture, V : comb: mixt: is estimated, using equation ( 1) to be about 33.2 Nm 3 /h.…”

Section: Gas Production Rate and Feedstock Consumptionmentioning

confidence: 99%

“…In the particular case of Portugal, which has about one third of the territory of forest area, the valorization of biomass associated with its use for electricity generation brings an additional benefit and, therefore, an incentive for reducing both the forest fuel load and the risk of forest fires in rural areas, which have been occurring with increasing frequency in the country [3,4]. The major obstacles to the use of biomass in large-scale energy production lies in tranportation, collection and handling, due to its bulkiness.…”

Section: Introductionmentioning

confidence: 99%

“…This feature has been exploited within the framework of the SUBe Project [3,5] aiming the harnessing and valuing the biomass available in the Portuguese rural areas. For this purpose an experimental set-up suitable to be used as a distributed small-scale power generation, either in mobile or stationary applications, using the locally available biomass, has been developed to be used for demonstration purposes.…”

Section: Introductionmentioning

confidence: 99%

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Design and experimental tests of an Imbert type downdraft gasifier prototype and clean-up system for small-scale biomass-based power generation

Mendonça

Mantilla

Patela

et al. 2022

Renew. Energy Environ. Sustain.

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This paper addresses the design, development and experimental tests of a prototype of fuel gas generation system based on biomass gasification for small-scale applications, around 5 kW. It comprises the small scale downdraft gasifier and the gas cleaning system aiming to clean-up the producer gas to be used in the upstream Internal Combustion Engine (ICE). The design of the downdraft gasifier prototype follows the methodologies that have been reported on the available literature. However, since these methodologies apply to gasifiers with larger rated powers, the adopted methodology is based on the extrapolation of the main parameters used for larger gasifiers design. For runing the ICE the producer gas requires to have a specific gas composition with an acceptable range of impurities. Therefore, a clean-up system was proposed following three stages: in first instance a hot gas clean-up using a cyclone designed to eliminate particles and compounds; then a heat exchanger was used for cooling the gas to condensate tars and water; finally a cold gas clean-up is performed by filtration using two filter steps: the first one using organic material (biomass) and the second one using a polypropylene cartridge filter. Experimental tests were performed using the developed imbert downdraft gasifier prototype, using pellets as feedstock. The preliminary results allow verifying several drawbacks that will difficult an effective integration of the developed prototype for small scale power generation applications based on ICE using low density feedstock.

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Section: Gas Production Rate and Feedstock Consumptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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