4.7 Article

Experimental study on the oxygen-enriched biogas explosion characteristics by co-firing propane in a duct

Related references

Note: Only part of the references are listed.
Article Thermodynamics

Numerical study of the stability of premixed flames propagating in half-open tubes

Ting Shen et al.

Summary: This study used numerical simulations to investigate the dynamics of premixed flames in half-open tubes, revealing significant differences in flame shape and pressure behavior in tubes of different sizes, indicating the length scale dependency of TF formation mechanisms.

COMBUSTION THEORY AND MODELLING (2022)

Article Energy & Fuels

Effect of biogas addition on combustion instability of propane flame at different external acoustic enforcement frequencies

Bugrahan Alabas

Summary: This study investigated the effect of adding biogas to a propane flame on combustion instability and luminous intensity. The results showed that the addition of biogas suppressed the combustion instabilities of the propane flame and increased the brightness of the flame.
Article Energy & Fuels

Advances, challenges, and perspectives of biogas cleaning, upgrading, and utilisation

Ayub Golmakani et al.

Summary: The use of biogas as a renewable energy resource has the potential to significantly reduce greenhouse gas emissions, however its share in the global renewable energy market does not reflect this potential. This study reviews advancements in biogas cleaning and upgrading technologies, addresses converting biogas to biomethane, and discusses the application of biogas in various technologies.
Article Energy & Fuels

Enhancement of biogas combustion by co-firing dimethyl ether in a gas turbine model combustor

Zhongya Xi et al.

Summary: Adding dimethyl ether (DME) to biogas can improve flame stability and combustion intensity, while increasing CO2 content can raise the lean blowout limit. DME co-firing increases NO emissions, while increasing CO2 content decreases NO emissions.
Article Energy & Fuels

Comparison of natural gas and propane addition to combustion air in terms of engine performance in compression ignition engine

Esenay Arslan et al.

Summary: This study examines and compares the effects of natural gas and propane addition to the combustion air of diesel engines on engine performance. The results show that adding natural gas and propane can reduce fuel consumption and NOx emissions under certain conditions.
Article Engineering, Environmental

Effect of initial turbulence on explosion behavior of stoichiometric methane-ethylene-air mixtures in confined space

Kai Wang et al.

Summary: The turbulent explosion process of stoichiometric CH4/C2H4/air mixtures was experimentally studied, and the effects of turbulence intensity and fuel composition on explosion characteristics were analyzed. The results showed that both turbulence intensity and ethylene content can promote the occurrence of explosion and increase the severity of the explosion.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2022)

Article Engineering, Environmental

Application of large eddy simulation in methane-air explosion prediction using thickening flame approach

Kai Zheng et al.

Summary: In this study, large eddy simulation (LES) was conducted to investigate the stoichiometric methane-air explosion using thickening flame model. The numerical model was validated and found to reproduce the experimental data quantitatively and qualitatively. Estimation methods for the efficiency factor and thickening factor were proposed, and requirements for the ignition radius and flame thickness were discussed.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2022)

Article Energy & Fuels

Controlling HCCI ignition timing of biogas by direct injection of solid biomass

Philippe Guibert et al.

Summary: Reducing pollutants emissions from internal combustion engines, particularly greenhouse gases, requires optimizing the combustion process and selecting low carbon impact fuels. Homogeneous Charge Compression Ignition (HCCI) combustion presents a challenge in controlling ignition timing. Introducing biomass particles to control combustion initiation shows promising effects in promoting reactivity and initiating the process of homogeneous combustion.

JOURNAL OF THE ENERGY INSTITUTE (2022)

Article Energy & Fuels

Laminar Burning Velocities of Hydrogen-Blended Methane-Air and Natural Gas-Air Mixtures, Calculated from the Early Stage of p(t) Records in a Spherical Vessel

Maria Mitu et al.

Summary: The study investigates the effect of hydrogen addition on the laminar burning velocity of methane and natural gas mixtures, showing that hydrogen addition increases LBV and the variation in LBV becomes more significant with higher hydrogen fractions.

ENERGIES (2021)

Article Energy & Fuels

Effect of Propane Addition and Oxygen Enrichment on the Flame Characteristics of Biogas

Xi Wang et al.

Summary: Mixing biogas with other fuels or increasing the oxygen content in the oxidizer can enhance the combustion performance of biogas flames. Oxygen enrichment increases flame propagation velocity and explosion pressure, while propane addition decreases maximum flame velocity. Laminar burning velocity (LBV) is a crucial parameter for predicting maximum flame velocity and maximum rate of pressure rise values.

ENERGY & FUELS (2021)

Article Engineering, Environmental

Experimental and numerical study on the effect of low vent burst pressure on vented methane-air deflagrations

Shengchao Rui et al.

Summary: This study experimentally investigated the effect of low vent burst pressure on methane-air deflagrations in a rectangular vessel, observing four different overpressure peaks and monitoring flame behaviors at each peak. The results showed that vent burst pressure affects P-open and P-acc, while P-out and P-ext are independent of vent burst pressure. Double flame accelerations were observed due to vent rupture and flame venting. Predictions reasonably agreed with experimental data, with discrepancies decreasing as vent burst pressure increased. Predicted maximum peak overpressure and external flame length were slightly larger than experimental values, providing better guidance for safe design and risk assessment in explosion venting.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2021)

Article Engineering, Environmental

Evaluating the effect of multiple flammable gases on the flammability limit of CH4: Experimental study and theoretical calculation

Zhenmin Luo et al.

Summary: The study found that adding mixed gas can decrease both the upper and lower flammability limits of methane, with a larger decrease in the lower limit. Under nitrogen dilution, the limiting oxygen concentration decreases with an increase in mixed gas concentration, leading to an expanded explosion triangle and increased danger of explosion. Sensitivity analysis shows that reactions involving active free radicals have higher sensitivity and can impact the flammability limit range of methane.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2021)

Article Engineering, Environmental

Characteristics of hydrogen-ammonia-air cloud explosion

Yanchao Li et al.

Summary: This study focuses on the characteristics of hydrogen-ammonia-air cloud explosions, experimentally revealing the correlation between flame behavior and explosion pressure, as well as analyzing the factors affecting laminar burning velocity. The results show that flame propagation velocity and maximum explosion pressure decrease with increasing ammonia fraction, while they initially increase and then decrease with increasing equivalence ratio.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2021)

Article Engineering, Environmental

Study on the combined effect of duct scale and SBC concentration on duct-vented methane-air explosion

Minggao Yu et al.

Summary: An experimental study was conducted to suppress methane-air explosions in a 5 L vessel connected to discharge duct of different scales and sodium bicarbonate concentrations. Results show that the ducted-vessel experienced more flame fragmentation compared to the simply vented vessel. The flame structure becomes more irregular with a larger vent coefficient and the appropriate SBC concentration can transform the mechanism for pressure rise in the vessel.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2021)

Article Engineering, Environmental

The influence of opening shape of obstacles on explosion characteristics of premixed methane-air with concentration gradients

Chuyuan Huang et al.

Summary: The experimental study investigated the combined effect of vertical concentration gradients and obstacle shapes on methane-air explosion characteristics by installing obstacle plates with different opening shapes in a pipeline. Results showed that the square-shaped opening had the most significant impact on flame propagation and explosion evolution, while obstacles had a more significant effect on flame propagation velocity and rate of pressure rise compared to concentration gradients.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2021)

Review Engineering, Chemical

Laminar Burning Velocity of Biogas-Containing Mixtures. A Literature Review

Venera Giurcan et al.

Summary: Biogas is a low-cost, sustainable, globally existing renewable fuel produced by decomposition of vegetation or waste products of biological activity. It can be used for domestic heating and cooking, as well as for internal combustion engines, gas turbines, fuel cells, or cogeneration systems.

PROCESSES (2021)

Article Energy & Fuels

Effects of hydrogen and carbon dioxide on the laminar burning velocities of methane-air mixtures

Akihiro Ueda et al.

Summary: The effects of different mole fractions of hydrogen and carbon dioxide on the combustion characteristics of a premixed methane-air mixture were investigated experimentally and numerically. Increasing carbon dioxide mole fraction decreases the laminar burning velocity, while increasing hydrogen mole fraction increases the velocity. Addition of hydrogen leads to the production of active radicals and higher mole fractions of hydrogen and carbon dioxide result in decreased NO production.

JOURNAL OF THE ENERGY INSTITUTE (2021)

Article Thermodynamics

Effects of Propane on the Flammability Limits and Chemical Kinetics of Methane-Air Explosions

Zhenmin Luo et al.

COMBUSTION SCIENCE AND TECHNOLOGY (2020)

Article Engineering, Environmental

Investigation on the overpressure of methane-air mixture gas explosions in straight large-scale tunnels

Yunfei Zhu et al.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2020)

Article Engineering, Environmental

Flammability limit behavior of methane with the addition of gaseous fuel at various relative humidities

Tao Wang et al.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2020)

Article Engineering, Environmental

Effect of film thickness and methane fraction on explosion characteristics of biogas/air mixture in a duct

Dou Zengguo et al.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2020)

Review Engineering, Environmental

Removal of H2S in biogas using biotrickling filter: Recent development

Hao Huynh Nhut et al.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2020)

Article Engineering, Environmental

Coupling mechanism of natural gas deflagration flame and continuous water in closed pipeline

Qi Zhang et al.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2020)

Review Energy & Fuels

Review of propane-air chemical kinetic mechanisms for a unique jet propulsion application

Richard B. Bramlette et al.

JOURNAL OF THE ENERGY INSTITUTE (2020)

Article Energy & Fuels

Effect of oxygen-rich combustion on soot formation in laminar co-flow propane diffusion flames

Huaqiang Chu et al.

JOURNAL OF THE ENERGY INSTITUTE (2020)

Review Energy & Fuels

NOX emissions of compression ignition engines fueled with various biodiesel blends: A review

Fatemeh Sadat Mirhashemi et al.

JOURNAL OF THE ENERGY INSTITUTE (2020)

Article Chemistry, Physical

Experimental study on flame stability of biogas / hydrogen combustion

Zhunqing Hu et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2019)

Article Thermodynamics

Differential diffusion effects in counter-flow premixed hydrogen-enriched methane and propane flames

Ehsan Abbasi-Atibeh et al.

PROCEEDINGS OF THE COMBUSTION INSTITUTE (2019)

Article Chemistry, Physical

Experimental and numerical study on the laminar burning velocity of hydrogen enriched biogas mixture

Zhilong Wei et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2019)

Article Engineering, Environmental

Biogas separation using a membrane gas separator: Focus on CO2 upgrading without CH4 loss

Myung Seop Shin et al.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2019)

Article Energy & Fuels

Study on premixed flame dynamics of CH4/O2/CO2 mixtures

Ligang Zheng et al.

Article Chemistry, Physical

Study on explosion characteristics of premixed hydrogen/biogas/air mixture in a duct

Ligang Zheng et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2019)

Article Engineering, Chemical

Ignition temperatures of combustible liquids with increased oxygen content in the (O2 + N2) mixture

Maria Mitu et al.

JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES (2019)

Review Green & Sustainable Science & Technology

Premixed flame propagation in hydrogen explosions

Huahua Xiao et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2018)

Review Green & Sustainable Science & Technology

Biogas production - A review on composition, fuel properties, feed stock and principles of anaerobic digestion

B. Bharathiraja et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2018)

Article Chemistry, Physical

Duct-vented hydrogen-air deflagrations: The effect of duct length and hydrogen concentration

Fuqiang Yang et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

Article Chemistry, Physical

Assessment of the method for calculating the Lewis number of H2/CO/CH4 mixtures and comparison with experimental results

Denis Lapalme et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2017)

Review Green & Sustainable Science & Technology

Recent advancement in biogas enrichment and its applications

Rahul Kadam et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2017)

Review Green & Sustainable Science & Technology

Review of the state-of-the-art of biogas combustion mechanisms and applications in internal combustion engines

Yong Qian et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2017)

Article Thermodynamics

Towards a predictive scenario of a burning accident in a mining passage

Sinan Demir et al.

COMBUSTION THEORY AND MODELLING (2017)

Article Engineering, Environmental

Influence of inert gas addition on propagation indices of methane-air deflagrations

Maria Mitu et al.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2016)

Review Green & Sustainable Science & Technology

A review of potential innovations for production, conditioning and utilization of biogas with multiple-criteria assessment

Wojciech M. Budzianowski

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2016)

Article Green & Sustainable Science & Technology

Analysis of accidents in biogas production and upgrading

Valeria Casson Moreno et al.

RENEWABLE ENERGY (2016)

Article Thermodynamics

Formation and evolution of distorted tulip flames

Huahua Xiao et al.

COMBUSTION AND FLAME (2015)

Article Engineering, Chemical

Simplified multiple equations' inverse problem of vented vessels subjected to internal gas explosions

Francisco Hernandez et al.

JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES (2015)

Article Thermodynamics

Tulip flame - the mechanism of flame front inversion

Bogdan Ponizy et al.

COMBUSTION AND FLAME (2014)

Article Engineering, Environmental

High methane natural gas/air explosion characteristics in confined vessel

Chenglong Tang et al.

JOURNAL OF HAZARDOUS MATERIALS (2014)

Article Chemistry, Physical

Effects of hydrogen addition on the characteristics of a biogas diffusion flame

H. S. Zhen et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2013)

Article Chemistry, Physical

Laminar burning velocity and interchangeability analysis of biogas/C3H8/H2 with normal and oxygen-enriched air

Cesar A. Cardona et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2013)

Article Thermodynamics

Flame acceleration in the early stages of burning in tubes

Vitaly Bychkov et al.

COMBUSTION AND FLAME (2007)

Article Engineering, Environmental

Explosion characteristics of synthesised biogas at various temperatures

L. Dupont et al.

JOURNAL OF HAZARDOUS MATERIALS (2006)