A 0.5 MW class oxy-fuel boiler was developed to capture CO2 from exhaust gas. We adopted natural gas as the fuel for industrial boilers and identified characteristics different those of pulverized coal, which has been studied power plants. also examined combustion without flue recirculation (FGR), is not commonly in plant boilers. Oxy-fuel involves a stretched flame that uniformly heats chamber...

Abstract Dense environmental barrier coatings (EBCs) are an essential prerequisite to exploit the advantages offered by SiC‐based fiber reinforced ceramic matrix composites (CMCs) increase efficiency in gas turbines. Today's state‐of‐the art materials for application as EBCs rare‐earth (RE) silicates which, however, form amorphous phases upon rapid quenching from melt. This makes their processi...

Carbon neutrality refers to the state of making net‐zero emissions carbon dioxide (CO 2 ), which is a key concept in tackling global warming. It can be achieved by offsetting as well balancing reduced and emitted emissions. Globally, CO mainly from fossil fuel power plants. The use capture storage technology, including pre‐, post‐, oxy‐fuel combustion capture, plants provide carbon‐neutral stra...

Biomass oxy-combustion is attracting considerable attention in recent times because it can achieve negative CO2 emission. While different fundamental issues of oxy-coal combustion are being tackled and pilot demonstrations have been conducted at various scales, little is known about the behaviour of biomass under oxy-fuel combustion. This paper investigates and presents the results of the devol...

High velocity oxy-fuel (HVOF)coating have shown high resistance to corrosion in fossil energy applications and it is generally accepted that mechanical failure, e.g. cracking or spalling, ultimately will determine coating lifetime. The use of HVOF thermal spray to apply coatings is one of the most commercially viable and allows the control of various parameters including powder particle velocit...

The aim of this work is to improve the understanding effect cooling rate on microstructure high-entropy alloys, with a focus alloy coatings, by using combined computational and experimental validation approach. CoCrFeMnNi0.8V coatings were deposited steel substrate high velocity oxy-air-fuel spray employment three different deposition temperatures. microstructures studied compared equivalent bu...

Thermal spray is a versatile and cost-effective process to deposit wear corrosion resistant coatings. In this work, relatively new ‘Fe-based’ chemistry comprising boride carbides, explored as ‘greener’ alternative the expensive carcinogenic Co-based coatings mitigate wear. The emergent thermal of high-velocity air-fuel (HVAF) spraying was chosen Fe-based coatings, with oxy-fuel (HVOF) also bein...

Abstract The paper presents the computational studies on microstructure of WC-Co-Cr coatings deposited by High Velocity Oxy Fuel spraying (HVOF). study covers porosity assessment according to ASTM E2109-01 standard, carried out in ImageJ software, terms volume porosity, size and shape pores. evaluation was preceded scanning electron microscope (SEM) observations at magnifications 2000x 5000x. A...