相关参考文献
注意：仅列出部分参考文献，下载原文获取全部文献信息。
Article
Thermodynamics
Akihiro Hayakawa et al.
Summary: To achieve carbon neutrality, the use of ammonia as a fuel for power generation is expected. A binary fuel of ammonia and hydrogen can address the weak flame characteristics of ammonia. A study investigated the product gas characteristics of ammonia/hydrogen/air flames, finding a trade-off between NO and unburnt ammonia under slightly rich conditions. At lean conditions, NO reached a maximum value of 8,700 ppm, larger than that of pure ammonia/air flames. The study also revealed the important reactions for N2O production and reductions, as well as the influence of flame temperature and equivalence ratio.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Syed Mashruk et al.
Summary: This study investigates the chemiluminescence characteristics of premixed ammonia-methane-air swirling flames. The effects of equivalence ratio, ammonia fraction in the fuel blend, and Reynolds number on the emitted light were examined. Excited radicals contributing to chemiluminescence in the UV and visible ranges were identified, and various ratios of chemiluminescence intensities were studied to remove the effects of time-varying flame surface area.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Chemistry, Physical
Zhaoxing Li et al.
Summary: This paper presents a modeling study on the effects of inter-stage mixing on the NOx emission of NH3 fueled rich-lean staged combustion. The study reveals that the quality of the inter-stage mixing has a significant impact on NOx emission, with poor mixing leading to increased NOx. However, at higher values of the mixing ratio, poor mixing may actually reduce NOx emission.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Amirreza Mohammadpour et al.
Summary: Numerical study of pure ammonia MILD combustion in a furnace reveals that lowering the furnace wall temperature and diluting the inlet air with nitrogen can improve the characteristics of the reaction zone, reduce fuel and oxidizer consumption rates, increase turbulent Reynolds number, and decrease exhaust emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
S. Mashruk et al.
Summary: In the development of ammonia-hydrogen blends as potential substitutes for fossil fuels, the impact of different conditions on the production of NOX, especially N2O, has been evaluated. It was found that increasing ammonia content in the fuel can decrease NO and NO2 emissions but increase N2O emissions. High ammonia content also leads to increased unreacted ammonia fractions, potentially affecting flame stability and temperature.
COMBUSTION AND FLAME
(2022)
Article
Thermodynamics
Syed Mashruk et al.
Summary: Ammonia/hydrogen fuel blends show promise in the development of a hydrogen economy, with advantages in storage cost and combustion properties compared to pure hydrogen or pure ammonia. This study investigates the nitrogen oxide emissions trends for these blends and identifies the optimal fuel fractions and equivalence ratios for reducing emissions.
Article
Thermodynamics
Rodolfo C. Rocha et al.
Summary: Ammonia is considered a promising alternative fuel with zero CO(2) emissions, but its combustion can lead to high NOx emissions. This study numerically investigates the combustion and emission characteristics of ammonia in different gas turbine concepts, revealing that RQL and MILD concepts achieve the lowest emissions.
COMBUSTION SCIENCE AND TECHNOLOGY
(2021)
Article
Thermodynamics
Daniel Pugh et al.
Summary: With the increasing interest in NH3 as a potential energy carrier, combustor designs and fuel concepts need to be optimized to reduce NOx emissions. The introduction of staged combustor concepts has been identified as a way to limit NOx production, improve combustor efficiency, and reduce unburned NH3. The efficacy of secondary air staging is sensitive to primary flame behavior, and while low NOx emissions can be achieved at rich conditions, high unburned NH3 can lead to greater global NOx concentrations.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Thermodynamics
M. Gutesa Bozo et al.
Summary: The study examines the implementation of a high-efficiency gas turbine cycle using ammonia as a fuel, which can increase efficiency, reduce emissions, and shows significant potential for development.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Physical
S. Mashruk et al.
Summary: Ammonia and hydrogen are zero-carbon fuels with high potential for gas turbine technologies, but nitrogen oxide emissions pose a major challenge. Rich-Quench-Lean systems with humidified atmospheres are promising solutions for reducing emissions through recombination of species and lower combustion temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Marco Osvaldo Vigueras-Zuniga et al.
Summary: Recent studies have shown that ammonia could potentially serve as an energy carrier to replace natural gas in gas combustion. Research has focused on understanding radical formation during the combustion of ammonia and methane blends.
Article
Chemistry, Physical
Abdulrahman A. Khateeb et al.
Summary: Increasing pressure widens the range of stable equivalence ratios for pure ammonia-air flames. There is a critical ammonia fraction above which the range of stable equivalence ratios suddenly widens, regardless of pressure. The critical ammonia fraction increases with pressure and is larger for ammonia-hydrogen than for ammonia-methane.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
Ekenechukwu C. Okafor et al.
Summary: The development of liquid ammonia spray combustion technology has the potential to reduce costs and sizes of gas turbines, but flame stabilization remains a challenge. This study investigated the flame stability and emissions control in liquid ammonia spray combustion for the first time, showing that the cooling effect of liquid ammonia spray enhances flame blowoff. Emissions analysis revealed that two-stage rich-lean combustion can effectively control emissions, but further enhancements in the primary combustion zone are needed.
APPLICATIONS IN ENERGY AND COMBUSTION SCIENCE
(2021)
Article
Energy & Fuels
Song Wu et al.
Article
Thermodynamics
Ekenechukwu C. Okafor et al.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2019)
Article
Thermodynamics
Daniel Pugh et al.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2019)
Article
Thermodynamics
Edwin Goh et al.
COMBUSTION AND FLAME
(2019)
Review
Thermodynamics
Hideaki Kobayashi et al.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2019)
Review
Thermodynamics
A. Valera-Medina et al.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2018)
