4.7 Article

Experimental and numerical study on the ignition delay times of dimethyl ether/propane mixtures in O2/CO2 atmospheres

Related references

Note: Only part of the references are listed.
Review Energy & Fuels

A review on the progress and prospects of oxy-fuel carbon capture and sequestration (CCS) technology

Sujeet Yadav et al.

Summary: Oxy-fuel combustion-based CCS technology has emerged as a promising technique for preventing greenhouse gas emissions. It has gained attention due to its cost-effective CO2 capture.
Article Thermodynamics

Reflected shock-initiated ignition probed via simultaneous lateral and endwall high-speed imaging with a transparent, cylindrical test-section

Erik Ninnemann et al.

Summary: A TRAnsparent cylindrical (TRAC) shock tube test section was used to investigate the ignition structure behind reflected shockwaves, showing the impact of temperature gradients on mild ignition and providing an experimental correlation for estimating the transition temperature. The effect of diagnostic location in non-homogeneous reactions on ignition delay is quantified, and insights into the ignition process under heavy shock bifurcation are discussed.

COMBUSTION AND FLAME (2021)

Article Thermodynamics

A kinetics and dynamics study on the auto-ignition of dimethyl ether at low temperatures and low pressures

Wenlin Huang et al.

Summary: The ignition behavior of DME at low-temperature, low-pressure conditions is different from that at high-pressures, with a repeatable ignition delay time fall-off feature observed, which is strong equivalence ratio dependence and disappears at an equivalence ratio of 5.0. Numerical simulations suggest that the use of a local ignition kernel postulate can better explain the inhomogeneous premature ignition situation.

PROCEEDINGS OF THE COMBUSTION INSTITUTE (2021)

Article Chemistry, Physical

Ignition delay and chemical-kinetic modeling of undiluted mixtures in a high-pressure shock tube: Nonideal effects and comparative uncertainty analysis

Lisa Zander et al.

Summary: The study highlights the importance of considering realistic measurement conditions and conducting accurate uncertainty quantification in modeling to improve the predictive reliability of chemical-kinetic models.

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS (2021)

Article Chemistry, Applied

A reactive molecular dynamics study of HCN oxidation during pressurized oxy-fuel combustion

Dikun Hong et al.

Summary: The study found that in pressurized oxy-fuel combustion, HCN oxidation is influenced by CO2, with effects on both overall oxidation rate and OH radical generation.

FUEL PROCESSING TECHNOLOGY (2021)

Article Thermodynamics

Part load operation of natural gas fired power plant with CO2 capture system for selective exhaust gas recirculation

Yamina Qureshi et al.

Summary: This study investigates the base and part load operation of a natural gas combined cycle power plant integrated with a post-combustion CO2 capture plant and selective exhaust gas recirculation scheme. The results show that enhancing the CO2 concentration through selective exhaust gas recirculation improves the performance of the power plant, particularly at part load operation.

APPLIED THERMAL ENGINEERING (2021)

Article Thermodynamics

Experimental analysis of CO/H2 syngas with NOx and SOx reactions in pressurized oxy-fuel combustion

Donghee Kim et al.

Summary: This study investigated the combustion characteristics and NOx/SOx emissions at different pressures using a lab-scale pressurized oxy-fuel combustion system. Higher pressure resulted in increased heat recovery rate, lower combustion temperature, and higher heat flow rate with higher H2O content in flue gas. NOx and SOx emissions decreased under low H2O conditions in flue gas, and significantly decreased under high H2O conditions at 10 barg. The study identified the effects of H radicals and H2O fraction on the oxidation and decrease of NOx and SOx.

ENERGY (2021)

Article Thermodynamics

Demonstration of 0.1 MWth pilot-scale pressurized oxy-fuel combustion for unpurified natural gas without CO2 dilution

Donghee Kim et al.

Summary: The study investigated the characteristics and potential of the pressurized oxy-fuel combustion system using unpurified natural gas and pure oxygen, demonstrating successful pilot-scale testing of the system. The heat recovery rate was around 84-86% in all tested cases, and radiative heat transfer was enhanced by flue gas composed mainly of H2O and CO2 at high pressures. Furthermore, the reduction in mean temperature led to decreased NOx concentration, suppressing the formation of thermal NO.

ENERGY (2021)

Article Energy & Fuels

Application of reformed exhaust gas recirculation on marine LNG engines for NOx emission control

Yanxiang Long et al.

Summary: The study investigated the use of REGR technique for emissions reduction in marine LNG engines, achieving a 60-70% reduction in NOx emissions and meeting Tier III regulations. However, a high RRNG led to increased concentrations of H2 and CO, resulting in increased NOx emissions and decreased unburned hydrocarbons.
Article Energy & Fuels

Experimental study of buoyancy-induced instability in the DME and LPG jet diffusion flame

G. Mahesh Nayak et al.

Summary: An experimental study on buoyant jet diffusion flames investigated the interaction between fuel jet and outer vortex, showing that their interaction leads to radial expansion of the leading vortex and subharmonic frequency generation. The study revealed large-scale coherent structure in the region of subharmonic oscillation due to merging successive vortices, occurring near the tube exit.
Article Green & Sustainable Science & Technology

Investigation into simulating Selective Exhaust Gas Recirculation and varying Pressurized Hot Water temperature on the performance of the Pilot-scale Advanced CO2 Capture Plant with 40 wt(%) MEA

Abdul'Aziz Adamu Aliyu et al.

Summary: This study investigates the impact of Selective Exhaust Gas Recirculation (S-EGR) on the performance of CO2 capture process, finding that it can reduce N-SRD under specific conditions but its effectiveness decreases with varying CO2 concentrations. Furthermore, the study reveals that the Pressurized Hot Water (PHW) temperature affects CO2 capture efficiency, with an increase in temperature leading to improved CO2 capture efficiency but also an increase in N-SRD.

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL (2021)

Article Energy & Fuels

Effects of High Fuel Loading and CO2Dilution on Oxy-Methane Ignition Inside a Shock Tube at High Pressure

Andrew R. Laich et al.

JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME (2020)

Article Green & Sustainable Science & Technology

Selective exhaust gas recirculation in combined cycle gas turbine power plants with post-combustion CO2 capture

Laura Herraiz et al.

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL (2018)

Article Energy & Fuels

Shock-Tube Measurements and Kinetic Modeling Study of Methyl Propanoate Ignition

Zihang Zhang et al.

ENERGY & FUELS (2014)

Article Thermodynamics

Experimental and modeling study of the auto-ignition of n-heptane/n-butanol mixtures

Jiaxiang Zhang et al.

COMBUSTION AND FLAME (2013)

Article Energy & Fuels

Dimethyl Ether Autoignition at Engine-Relevant Conditions

Zhenhua Li et al.

ENERGY & FUELS (2013)

Article Chemistry, Physical

A Hierarchical and Comparative Kinetic Modeling Study of C1 - C2 Hydrocarbon and Oxygenated Fuels

Wayne K. Metcalfe et al.

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS (2013)

Review Thermodynamics

Combustion performance and emission reduction characteristics of automotive DME engine system

Su Han Park et al.

PROGRESS IN ENERGY AND COMBUSTION SCIENCE (2013)

Review Thermodynamics

Oxy-fuel combustion of pulverized coal: Characterization, fundamentals, stabilization and CFD modeling

Lei Chen et al.

PROGRESS IN ENERGY AND COMBUSTION SCIENCE (2012)

Article Thermodynamics

High temperature rate constants for OH plus alkanes

R. Sivaramakrishnan et al.

PROCEEDINGS OF THE COMBUSTION INSTITUTE (2009)

Article Thermodynamics

High temperature ignition and combustion enhancement by dimethyl ether addition to methane-air mixtures

Zheng Chen et al.

PROCEEDINGS OF THE COMBUSTION INSTITUTE (2007)

Article Engineering, Multidisciplinary

A facility for gas- and condensed-phase measurements behind shock waves

EL Petersen et al.

MEASUREMENT SCIENCE AND TECHNOLOGY (2005)