A5079877702- Thermochemical Biomass Conversion Processes
- Coal and Coke Industries Research
- Combustion and flame dynamics
- Advanced Combustion Engine Technologies
- Radiative Heat Transfer Studies
- Coal Combustion and Slurry Processing
- Renewable energy and sustainable power systems
- Thermal Radiation and Cooling Technologies
- Coal Properties and Utilization
- Subcritical and Supercritical Water Processes
- Mining and Gasification Technologies
- Combustion and Detonation Processes
- Building energy efficiency and sustainability
- Iron and Steelmaking Processes
- Fire dynamics and safety research
- Engine and Fuel Emissions
- Zeolite Catalysis and Synthesis
- Waste Management and Environmental Impact
- Thermography and Photoacoustic Techniques
- Thermal and Kinetic Analysis
AGH University of Krakow
2022-2023
Clausthal University of Technology
2012-2018
University of Maryland, College Park
2009
This work is concerned with domestic boilers burning solid fuels. Time-dependent coal combustion in the counter-current fixed-bed has been investigated using both measurements and mathematical modeling. Three-dimensional, time-dependent model of developed as a submodel to computational fluid dynamics (CFD)-based whole boiler. The overall 0.0177 kg/(m2 s) 0.0266 rates have observed for air velocities 0.17 m/s 0.26 m/s, respectively. Two temperature peaks observed: one propagating downward bed...
High-temperature steam gasification of paper, yellow pine woodchips, and Pittsburgh bituminous coal was investigated in a batch-type flow reactor at temperatures the range 700 to 1,200°C two different ratios feedstock molar ratios. Hydrogen yield 54.7% for 60.2% 57.8% achieved on dry basis, with rate 6.3 g/min temperature 1,200°C. Yield both hydrogen carbon monoxide increased while dioxide methane decreased increase temperature. A 10-fold reduction tar residue obtained high-temperature...
The issue of maintaining low-gradient combustion in the conditions high heat extraction has been investigated numerically this work. analyses include application a convective boundary condition at wall (with estimated boiling transfer coefficient); analysis Internal Recirculation Device’s impact on products and under conditions; comparison both traditional modes. It was shown that Device material geometry significant nitrogen oxide (NOx) formation mechanism, as NO2 emission becomes...
This article relates to the optimization of twin heating flue construction in terms NOx emission (see also Part I [1]). The novel designs for both mixed-gas (MG) and coke oven gas (COG) have been developed using CFD- based numerical modelling GRI-Mech 3.0 detailed mechanism (for NO x predictions). By analyzing results investigations presented [1], modifications twin- flues found, reducing from about 180 ppm (7% O2 ) 56 values below 100 42 COG MG, respectively. These improvements achieved by...
The paper presents an altered design of the coke oven twin-heating flues which is optimized in terms NO x emission. heating flue modifications relate to position and size air inlets as well improved internal exhaust gas re-circulation. optimization process was carried out using CFD-based numerical modelling. In order ensure better accuracy, formation within predicted full GRI-Mech 3.0 mechanism [1].Improvement construction significantly reduced nitrogen oxides When burning (COG)...