Agro-pellets for domestic heating boilers: Standard laboratory and real life performance

Verma, Vijay; Bram, Svend; Delattin, Frank; Laha, Priya; Vandendael, Isabelle; Hubin, Annick; Ruyck, Jacques De

doi:10.1016/j.apenergy.2010.12.079

Cited by 167 publications

(75 citation statements)

References 14 publications

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“…Algunos autores (Garcia-Maraver et al, 2014, Verma et al, 2012, Rabaçal, Fernandes, y Costa, 2013 reportan valores inferiores a 2000 ppm en 17 % de O 2 , valores que presentan AD, CL, EFB, OPMF, GS, PA y SO, por lo que estos cultivos se encuentran dentro del rango normal. Pero PP, SB y TG, presentan valores sobre 2680 ppm, considerados como altos.…”

Section: Discusión Caracterización De La Biomasaunclassified

Evaluación de la combustión de comprimidos cilíndricos fabricados con cultivos forestales y agrícolas en Costa Rica utilizando un quemador doméstico

Rodríguez-Zúñiga

Moya

Valdez

et al. 2015

RFMK

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<p>Se presenta la evaluación de la combustión de pellets fabricados con dos cultivos forestales y ocho cultivos agrícolas en Costa Rica utilizando un quemador doméstico de 50 Kw/h. Se evaluó las características de la biomasa, las temperaturas en la salida del quemador y en la chimenea, las emisiones (O2, CO2, CO, NO, NO2, NOx y SO2), las pérdidas de calor y la eficiencia. La temperatura de salida en el quemador varió entre 400 °C y 613 °C y la temperatura en la chimenea estuvo desde los 205 a 322 °C, la temperatura más baja correspondió a Phyllostachys aurea y la mayor al residuo de la palma de aceite. Tectona grandis presentó la mayor variación de la temperatura, mientras que Cupressus lusitanica obtuvo la menor variación. Los dos cultivos forestales presentaron los menores valores de emisiones. En la eficiencia en combustión el mejor cultivo fue Gynerium sagittatum, mientras que las especies forestales presentaron una eficiencia intermedia entre los cultivos analizados.</p>

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Section: Discusión Caracterización De La Biomasaunclassified

Evaluación de la combustión de comprimidos cilíndricos fabricados con cultivos forestales y agrícolas en Costa Rica utilizando un quemador doméstico

Rodríguez-Zúñiga

Moya

Valdez

et al. 2015

RFMK

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“…The higher the moisture content, the lower the energy density and consequently the more space will be needed to store the pellet fuel. The sulphur and nitrogen contents of biomass fuels are directly related to the SO x and NO x emissions from small combustion systems [5]. At present day the number of pellets producers on Russian market is sustainably growing, they offer quite a big variety of wood and agro pellets.…”

Section: Methodsmentioning

confidence: 99%

“…The laboratory measurements were performed by equipment: «Testo instruments» TESTO-340. The concept of the experimental setup was borrowed from [5].…”

Section: The Experimental Setupmentioning

confidence: 99%

Influence of burner form and pellet type on domestic pellet boiler performance

Rastvorov

Осинцев

Toropov

2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. The study presents combustion and emission results obtained using two serial pellet boilers of the same heating capacity 40 kW. These boilers have been designed by producers for domestic conditions of exploitation. The principal difference between boilers was the type of the burner. The study concerns the efficiency and ecological performance difference between burners of circular and rectangular forms. The features of the combustion process in both types of burners were studied when boiler operated with different sorts of pellets. The results suggest that the burner of circular form excels the rectangular form burner. However, there is some difference of NO x emission between circular and rectangular burners. IntroductionAt present day many economical, technical, ecological, as well as political reasons motivate firms and homeowners to use their own autonomous, independent of central heating pipeline and gas pipeline heat energy sources. The causes of such choice usually are striving for independence of the heat supplying organization pricing policy, avoidance of bureaucratic apparatus cooperation with (in questions of tariff agreement, the correspondence heating pipeline and gas pipeline connection standards, payment for extra project documentation necessary for central pipeline connection), unwillingness to bear expenses for the heat energy losses in a long and, sometimes, not of perfect quality heating pipeline from a relatively distant central heating source. A diesel fuel boiler, a wood boiler, a coal boiler, a heat pump may be used as independent heat energy source, when it is technically possible. A boiler with biomass and a boiler with granules can also be used. The use of boilers with fuel manual load with relatively big heat power is complicated by the need of heavy manual work. Diesel fuel heating is appreciably more expensive that all others named above and causes serious air pollution. The heat pump for relatively big heat power requires sufficiently big electrical power; a pellet or ground biomass boiler is the most suitable option for such decision.In the last 15-20 years pellet boilers have gained serious popularity in Russia and the EU countries and the number of sold pellet boilers keeps growing. The high prevalence of such heat energy sources is reached thanks to several certain factors: easiness of automatization of the fuel feeding process owing to the standardized size of pellets; easy ash removal that can be automatic or manual, because the pellets ash content seldom exceeds 4 %. The exception is pellets made of straw with the ash content from 7 to 10 percent; compactness of all equipment as compared with unstandardized solid fuel boilers; accessibility of pellets in the market, reasonable price for domestic use. In all pellet boilers the fuel-bed firing technology is used. However, prevailing burner and feeding systems in the EU countries and Russia are different.

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“…Unfortunately the availability of high quality and reasonably priced wood pellets on the Polish market is quite limited and therefore agrobiomass pellets are lately quite frequently used (e.g. straw, hay, sunflower husks, coffee husks) (Verma et al, 2012). In case of agrobiomass pellets, however, it is quite challenging to obtain pollutant emission as low as in case of wood pellets due to the fact that at temperatures of approx.…”

Section: Introductionmentioning

confidence: 99%

Correlation between air flow rate and pollutant concentrations during two-stage oak log combustion in a 25 KW residential boiler

Juszczak¹

2016

Chemical and Process Engineering

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It can be expected that there is a considerable correlation between combustion air flow rate and the concentrations of carbon monoxide, hydrocarbons and nitrogen oxide in the flue gas. The influence of temperature and oxygen concentration in the combustion zone on the concentrations of carbon monoxide, hydrocarbons and nitrogen oxide in the flue gas, for high and low combustion air flow, was analysed. Oxygen concentration for which the concentration of carbon monoxide is the lowest was determined, as well as the mutual relation between carbon monoxide and nitrogen oxide concentration.

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Agro-pellets for domestic heating boilers: Standard laboratory and real life performance

Cited by 167 publications

References 14 publications

Evaluación de la combustión de comprimidos cilíndricos fabricados con cultivos forestales y agrícolas en Costa Rica utilizando un quemador doméstico

Evaluación de la combustión de comprimidos cilíndricos fabricados con cultivos forestales y agrícolas en Costa Rica utilizando un quemador doméstico

Influence of burner form and pellet type on domestic pellet boiler performance

Correlation between air flow rate and pollutant concentrations during two-stage oak log combustion in a 25 KW residential boiler

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