Computational and experimental study of pine and sunflower husk pellet combustion and co-combustion with oats in domestic boiler

Bala-Litwiniak, Agnieszka; Zajemska, M.

doi:10.1016/j.renene.2020.07.139

Cited by 38 publications

(20 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The miscanthus pellet was produced from plants cultivated in an extensive manner near Krakow, but the proximity of other agricultural land meant a higher concentration of nitrogen than for wood. For sunflower husk pellets, the reported NOx emission was four times higher than emission reported by Verma et al [32] but at a similar level to those reported by Bala-Litwiniak and Zajemska [33]. Pałaszyńska and Juszczak [34] tested corn stover briquet emissions for an automatic boiler.…”

Section: Resultssupporting

confidence: 61%

An Assessment of the Efficiency and Emissions of a Pellet Boiler Combusting Multiple Pellet Types

et al. 2021

View full text Add to dashboard Cite

With sustainable energy being the key to reaching climate neutrality, the utilization of non-wooden biomass is a necessity. This article compares the emissions and efficiency of combusting a number of types of agrobiomass and wood pellets. A comparison was made on a moving grate pellet burner mounted in a boiler, where flue gas had a vertical flow via two pass heat exchangers with turbulization elements. Tests were conducted on wood pellets (ENPlus), miscanthus straw pellets, sunflower husk pellets, and corn stover pellets. During combustion, both wood and miscanthus pellets met the PN-EN 303-5:2012 emission and efficiency requirements. Corn stover pellets met the requirement on the nominal capacity. Sunflower husk pellets are characterized by excessive CO and particulate matter emissions. Sunflower husk pellets were the most problematic fuel from the point of view of the results of this research. During combustion of the miscanthus straw pellets there was a need to decrease the nominal heating capacity due to ash sintering.

show abstract

Section: Resultssupporting

confidence: 61%

An Assessment of the Efficiency and Emissions of a Pellet Boiler Combusting Multiple Pellet Types

et al. 2021

View full text Add to dashboard Cite

show abstract

“…49% on the dry basis [ 56 , 57 ], which makes BSG not significantly different in terms of its fuel properties, in comparison to lignocellulosic biomass. Additionally, ash content varies between 2 and 6% [ 57 , 58 , 59 ], which is similar to different types of agricultural biomass [ 60 , 61 , 62 , 63 , 64 , 65 , 66 ]. However, high moisture content, exceeding 70% [ 56 , 57 ], is a significant obstacle in the use of BSG as a solid biofuel.…”

Section: Thermal Valorization Of Bsgmentioning

confidence: 99%

Brewer’s Spent Grains—Valuable Beer Industry By-Product

et al. 2020

View full text Add to dashboard Cite

The brewing sector is a significant part of the global food industry. Breweries produce large quantities of wastes, including wastewater and brewer’s spent grains. Currently, upcycling of food industry by-products is one of the principles of the circular economy. The aim of this review is to present possible ways to utilize common solid by-product from the brewing sector. Brewer’s spent grains (BSG) is a good material for sorption and processing into activated carbon. Another way to utilize spent grains is to use them as a fuel in raw form, after hydrothermal carbonization or as a feedstock for anaerobic digestion. The mentioned by-products may also be utilized in animal and human nutrition. Moreover, BSG is a waste rich in various substances that may be extracted for further utilization. It is likely that, in upcoming years, brewer’s spent grains will not be considered as a by-product, but as a desirable raw material for various branches of industry.

show abstract

“…The characteristics of sunflower husks and sunflower husk pellets as fuels for co-firing with brown coal in energy boilers were presented by [ 22 ]. Moreover, computational analysis, using CHEMKIN-PRO (Ansys, Canonsburg, PA, USA), and an experimental study using thermal analysis (TGA) were used by [ 23 , 24 ] to analyze sunflower husk pellet and pine wood combustion and their co-combustion with oats.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Pelletized and Unpelletized Sunflower Husks Combustion Process in a Batch-Type Reactor

et al. 2021

View full text Add to dashboard Cite

This paper describes characteristics of the combustion of sunflower husk (SH), sunflower husk pellets (SHP), and, for comparison, hardwood pellets (HP). The experiments were carried out using a laboratory-scale combustion reactor. A proximate analysis showed that the material may constitute an alternative fuel, with a relatively high heating value (HHV) of 18 MJ/kg. For SHP, both the maximum combustion temperatures (TMAX = 1110 °C) and the kinetic parameters (temperature front velocity vt = 7.9 mm/min, combustion front velocity vc = 8 mm/min, mass loss rate vm = 14.7 g/min) of the process were very similar to those obtained for good-quality hardwood pellets (TMAX = 1090 °C, vt = 5.4 mm/min, vc = 5.2 mm/min, vm = 13.2 g/min) and generally very different form SH (TMAX = 840 °C, vt = 20.7 mm/min, vc = 19 mm/min, vm = 13.1 g/min). The analysis of ash from SH and SHP combustion showed that it has good physicochemical properties (ash melting point temperatures >1500 °C) and is safe for the environment. Furthermore, the research showed that the pelletization of SH transformed a difficult fuel into a high-quality substitute for hardwood pellets, giving a similar fuel consumption density (Fout = 0.083 kg/s·m2 for SHP and 0.077 kg/s·m2 for HP) and power output density (Pρ = MW/m2 for SHP and 1.5 MW/m2 for HP).

show abstract

Computational and experimental study of pine and sunflower husk pellet combustion and co-combustion with oats in domestic boiler

Cited by 38 publications

References 34 publications

An Assessment of the Efficiency and Emissions of a Pellet Boiler Combusting Multiple Pellet Types

An Assessment of the Efficiency and Emissions of a Pellet Boiler Combusting Multiple Pellet Types

Brewer’s Spent Grains—Valuable Beer Industry By-Product

Comparative Analysis of Pelletized and Unpelletized Sunflower Husks Combustion Process in a Batch-Type Reactor

Contact Info

Product

Resources

About