Numerical Simulation of Biomass Pellet Combustion Process

Chen, Rong; Ai, Yu; Tian-shun, Zhang; Yue, Rao; Yue, Hanhong; Zheng, Jiaxin

doi:10.18280/ijht.370420

Cited by 8 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be observed that from 16 to 32 min the burn rate is in the range between 20 and 22.5 g/min. In this period, the maximum amount of volatiles is removed from the biomass pellets . After 32 min, there is a decrease in the burn rate steadily up to the end of the experiment.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Performance Improvement of Biomass Cookstove: Insights from Computational Fluid Dynamics and Prototype Testing

Paramane,

Kataria,

Mathpati

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The biomass cookstove operation is a complex multiphysics process involving fluid dynamics, single and multiphase chemical reactions, heat and mass transfer, radiation, and more. The understanding of transport phenomena and improvement in equipment design can be achieved using the synergistic usage of prototype testing and computational fluid dynamics (CFD). The insights from our prior CFD studies and present prototype testing have helped to improve the secondary air flow pattern by orifice plate optimization, which led to the thermal efficiency of 41.6% from 38%. The analysis of flame height, flame temperature, and bed height shows that the burning rate is high in the middle section, due to rapid heating and ignition of particles due to conduction and radiation, with incomplete combustion of volatiles. The cross-sectional area in the middle zone was successfully modified to overcome this limitation. The thermal efficiency of the improved design is 50%. CFD simulations have been carried out for homogeneous combustion to understand the air flow pattern and temperature profiles in the different prototypes.

show abstract

Section: Resultsmentioning

confidence: 99%

“…In this period, the maximum amount of volatiles is removed from the biomass pellets. 35 After 32 min, there is a decrease in the burn rate steadily up to the end of the experiment. As we can see, the burn rate profile is different for the three WBT experiments.…”

Section: Thermal Performance Analysis Of Model Ementioning

confidence: 99%

Performance Improvement of Biomass Cookstove: Insights from Computational Fluid Dynamics and Prototype Testing

Paramane,

Kataria,

Mathpati

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…It can also be processed into renewable tableware [189], not necessarily as a fuel or energy source. Even if biomass is used as an energy source, it does not necessarily have to be made into liquid fuels, but can also be used in other forms of energy such as direct combustion [190], hydrogen production, or gas. Therefore, if liquid fuel preparation is to guarantee its stable feedstock supply, it needs to have higher financial benefits, which might be significantly affected by the market.…”

Section: Feedstock Supplymentioning

confidence: 99%

Liquid biofuel powering the sustainable transport with a low-carbon emission: a review

Tao,

Chen,

Wang

et al. 2023

Prog. Energy

View full text Add to dashboard Cite

Energy consumption from transport has been increasing at a fast rate and become a major sector, which takes 29% of total global energy demand. Since transport energy consumption primarily relies on fossil fuels, it has resulted in serious carbon emissions and environmental degradation. Moreover, the volatility prices of fossil fuel and unstable international security have attracted keen interest for many developing and industrialized countries looking for sustainable and clean alternatives. Liquid biofuels, including but not limited to bioethanol, biodiesel, bio-jet fuel, are considered as the most promising alternative and more expansive role in powering sustainable transport, for its carbon neutral and low-emissions properties. Liquid biofuels contribute 4% of transport in 2020 and have been foreseen to continuously grow. Liquid biofuels can be produced by diverse technologies and commercialized in various ways, easy-adapt to technical and policy challenges. Major challenges include technical bottleneck, initial and operational cost, byproduct treatment, and associated environmental concern. This paper critically reviews: (1) Categories and production of different liquid biofuels; (2) Application scenarios of liquid biofuels; (3) Environmental impact assessment of liquid biofuels; (4) Opportunities and challenges of liquid biofuels; (5) Future perspectives. Each type of liquid biofuel requires specific production processes and has a strong correlation with biomass raw materials. Liquid biofuels find extensive applications in transportation, aviation, and other functional domains. In addition, the life cycle assessment of liquid biofuels is carried out from the numerous aspects of raw materials, pretreatment, production process, and application. Furthermore, this study analyzes the related policies, highlighting the challenges associated with the unstable supply of clean energy, raw materials, and quality control. Finally, the future perspectives of liquid biofuels were presented. This comprehensive review aims to provide a systematic understanding of liquid biofuels, covering their production and applications from multiple perspectives, while offering insights into future developments.

show abstract

“…A flow, heat transfer, and mass transfer mathematical model was used to investigate the burning characteristics of a biomass pellet. 19 A pellet of 20 mm diameter burned completely in 2 min, and a maximum temperature of 1280 K was found. In conditions like those of practical industrial combustors, an experimental investigation was conducted to examine the ignition characteristics of solid biomass particles of various shapes and sizes.…”

Section: Introductionmentioning

confidence: 98%

“…The remaining char ignited and burned as a result of the volatiles being released and burning into spherical envelope flames. A flow, heat transfer, and mass transfer mathematical model was used to investigate the burning characteristics of a biomass pellet . A pellet of 20 mm diameter burned completely in 2 min, and a maximum temperature of 1280 K was found.…”

Section: Introductionmentioning

confidence: 99%

Combustion Characteristics and Visualization Analysis of a Biomass Pellet Oriented in Different Positions in a Fixed-Bed Reactor at Different Operating Conditions

El‐Sayed

Khass

Noseir

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

For all real-world applications, such as fluidized-bed and packed-bed combustion, it is essential to understand the combustion characteristics of an individual solid biomass particle. Under a variety of operating circumstances, investigations on the combustion and mass loss of single pellets of sugarcane (SC) and guava leaves (GL) were conducted. A visualization technique was used to capture the combustion processes of volatile and char. Both homogeneous ignition and hetero–homogeneous simultaneous ignition of both volatiles and char were found. When compared to the material composition and particle-size distribution of the pellet, the brightness of the pellet changed differently with increasing air mass flow rate and hot air temperature. By increasing the hot air temperature and air mass flow rate, the volatile flame of biomass pellets was made shorter and brighter, which lowered the volatile burnout duration. The majority of the entire conversion time is spent on char burning. Compared to other angles, the pellet orientation angle of 30° has a shorter ignition time, a lower surface temperature, and a lower burnout temperature.

show abstract

Numerical Simulation of Biomass Pellet Combustion Process

Cited by 8 publications

References 17 publications

Performance Improvement of Biomass Cookstove: Insights from Computational Fluid Dynamics and Prototype Testing

Performance Improvement of Biomass Cookstove: Insights from Computational Fluid Dynamics and Prototype Testing

Liquid biofuel powering the sustainable transport with a low-carbon emission: a review

Combustion Characteristics and Visualization Analysis of a Biomass Pellet Oriented in Different Positions in a Fixed-Bed Reactor at Different Operating Conditions

Contact Info

Product

Resources

About