Numerical research on ammonia-coal co-firing in a 1050 MW coal-fired utility boiler under ultra-low load: Effects of ammonia ratio and air staging condition

W Jin, F Si, Y Cao, C Yu, J Wang - Applied Thermal Engineering, 2023 - Elsevier
Abstract Co-firing ammonia (NH 3) with coal for thermal power generation is a promising
strategy for achieving global carbon neutrality. However, the drawbacks of NH 3 combustion …

Numerical investigation of ammonia/coal co-combustion in a low NOx swirl burner

M Liu, S Chen, H Zhu, Z Zhou, J Xu - Energy, 2023 - Elsevier
Co-firing of ammonia (NH 3) and coal in boilers is a promising technology to reduce CO 2
emissions from power plants. However, NH 3/coal co-firing in swirl burners can impact the …

Numerical study on the effects of primary air ratio on ultra-low-load combustion characteristics of a 1050 MW coal-fired boiler considering high-temperature corrosion

W Jin, F Si, S Kheirkhah, C Yu, H Li - Applied Thermal Engineering, 2023 - Elsevier
Primary air significantly impacts the ultra-low-load combustion of coal-fired utility boilers. In
this study, eleven combustion scenarios with varied primary air ratios (the flowrate ratio of …

CFD modeling and industry application of a self-preheating pulverized coal burner of high coal concentration and enhanced combustion stability under ultra-low load

H Zhang, H Lin, X Zhou, X Wang, H Zheng, Y Liu… - Applied Thermal …, 2024 - Elsevier
Deep participation in peak regulation is a fundamental issue in flexible peak regulation. The
ability to operate coal-fired power units under ultra-low load plays a crucial role in China's …

The effect of hydrogen addition on methane-air flame in a stratified swirl burner

S Rahimi, K Mazaheri, A Alipoor, A Mohammadpour - Energy, 2023 - Elsevier
This numerical study has focused on assessing the influence of adding 20% and 40%
hydrogen (on the volume of fuel basis) in different slots of a turbulent methane-air flame. The …

A hybrid deep neural network model for NOx emission prediction of heavy oil-fired boiler flames

Z Han, Y Xie, MM Hossain, C Xu - Fuel, 2023 - Elsevier
Accurate NOx emission monitoring is essential for an in-depth understanding of the
combustion state. However, establishing an accurate emission prediction model based on …

Computational modeling of pollutants in furnaces of pulverized coal boilers of the republic of Kazakhstan

A Askarova, A Georgiev, S Bolegenova, M Beketayeva… - Energy, 2022 - Elsevier
Ecological situation in the world has forced to close coal plants. And renewable energy
sources, which are characterized by volatility, mayn't be enough to provide countries with …

Experimental and numerical investigations on NOx formation and reduction mechanisms of pulverized-coal stereo-staged combustion

G Zeng, A Zhou, J Fu, Y Ji - Energy, 2022 - Elsevier
With the gradual increase of intermittent renewable energy, the coal-fired power generating
units must provide flexible peak shaving capabilities. However, the new requirement comes …

Carbon-free power generation strategy in South Korea: CFD simulation for ammonia injection strategies through boiler burner configurations in tangentially fired boiler

Y Zeng, J Kweon, GM Kim, CH Jeon - Energy, 2024 - Elsevier
To achieve carbon neutrality in power generation, incorporating ammonia-coal co-firing into
coal-fired boilers effectively reduces CO 2 emissions. Here, we aimed to optimize ammonia …

Numerical Optimization on Char Conversion and NOx Emission under Various Operating Conditions in a Retrofit Biomass Boiler

VT Trinh, BH Lee, SM Kim, CH Jeon - ACS omega, 2023 - ACS Publications
Retrofitting retirement or existing fossil boiler with biomass is an important method of curbing
electricity shortage and lowering the cost of modern power plants. However, the use of …