A5037840825- Thermochemical Biomass Conversion Processes
- Biodiesel Production and Applications
- Refrigeration and Air Conditioning Technologies
- Energy and Environment Impacts
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Adsorption and Cooling Systems
- Carbon Dioxide Capture Technologies
- Phase Equilibria and Thermodynamics
- Chemical Looping and Thermochemical Processes
- Granular flow and fluidized beds
- Fire dynamics and safety research
- Advanced Thermodynamic Systems and Engines
- Building energy efficiency and sustainability
- Lignin and Wood Chemistry
- Global Energy and Sustainability Research
- Heat transfer and supercritical fluids
- Biofuel production and bioconversion
- Vehicle emissions and performance
- Iron and Steelmaking Processes
- Thermal and Kinetic Analysis
- Engine and Fuel Emissions
- activated carbon and charcoal
- Forest Biomass Utilization and Management
AGH University of Krakow
2019-2024
Jagiellonian University
2023
The most important challenge in solid feedstock thermal conversion methods is minimising CO2 emissions. In this work, the gasification of pine sawdust a mixture N2 and was investigated for reduction by calcium oxide loop. experiments were conducted at 600, 700, 800 °C fixed-bed reactor. biomass mixed with ratio 1:1. chemical composition syngas analysed using gas chromatography. Moreover, high heating values received samples calculated, thermogravimetric analysis Fourier-transform infrared...
This study investigates the co-pyrolysis of two types biomass (pine bark and wheat straw) with Tetra Pak waste (TPW). The experiments were performed using a fixed-bed reactor equipped an innovative system, where sample was rapidly heated to 600 °C before being cooled. multifaceted analysis included determination i) physical chemical properties feedstocks chars, ii) aqueous phase, tars, waxes, iii) char ignition burnout temperature, iv) composition gas, v) distribution carbon hydrogen in...
Fast biomass pyrolysis is an effective method for bio-oil production and can be performed in fluidised beds, augers, drop-tube reactors. In this study, the fast of agricultural (oat corn straw) a reactor was investigated by applying multiparameter analysis involving numerical calculations. The main motivation to determine operating parameters under which highest achieved. following were involved: temperature (500 – 700 °C), volume flow rate carrier gas (3 5 l/min), mass feedstock (10 30...
This work focuses on the impact of carrier gas quantity and quality pyrolytic products received from intermediate pyrolysis brewer’s spent grain. In this study, three types gases were tested: argon, nitrogen, carbon dioxide at temperatures 500, 600, 700 °C. On basis process conditions, yield was determined. The ultimate analysis char performed, for selected chars, combustion properties Gas chromatography organic fraction oil compounds Additionally, microscale investigation grain performed by...
Chlorine is one of the most undesirable elements in agricultural biomass which can cause operating problems during its thermal conversion. Even low-temperature pyrolysis, chlorine released gaseous phase. Therefore, order to study release following samples were analyzed: oat straw, straw doped with char, NH4Cl, and char NH4Cl. The pyrolysis process these feedstocks was conducted at 400, 500 600 °C under an inert atmosphere, a short residence time (2 min) for sample reactor. It transpired that...
Forecasts to 2030 indicate that demand for electricity will increase from 2% 3% per year, and due the observed high rate of development world economy, energy continue increase. More efficient use primary has influence on reduction emissions consumption fuel. Besides, reducing amount fuel burned, it reveals a beneficial effect environment. Since extraction-back pressure turbines have some limitations, including restriction production limited heat in summer. The paper discusses possibilities...
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This work presents two-dimensional numerical investigations of fast pyrolysis red oak in a free fall reactor.The Euler-Lagrange approach multiphase flow theory was proposed order to describe the behaviour solid particles gaseous domain.The main goal this study examine impact rate inert gas on process.Calculation domain reactor made according data found literature review.Volume rates were 3, 9, 18, and 25 l/min, respectively.Nitrogen selected as an gas.Biomass conducted at 550 • C with...
Biomass pyrolysis is an advanced process which leads to obtaining products as chars, primary tars and gases. Depending on conditions reactor construction, the could be divided into three categories: slow, intermediate fast. This work concerns experimental analysis of biomass residues in a fixed bed reactor. As raw materials, pine bark wheat straw were selected. Experiments carried out at temperatures: 400, 500 600 °C under constant volume flow rate inert gas equal 100 ml/min. samples kept...
1. Adsorption cooling systems. [Online] http://www.abschiller.ru/index... [Accessed: 2018-11-03]. Google Scholar
New guidelines set by international organizations for refrigeration companies cause that natural working fluids such as carbon dioxide are increasingly used in new systems. Carbon (R-744) is freezing, cooling, or air conditioning installations, which the cooling load fluctuates hourly. To adapt capacity of evaporator to current cooled space, a number control elements used. The paper proposes method regulating one-stage cycle with R-744 refrigerant and an internal heat exchanger (IHX)....
In response to international regulations, natural refrigerants such as carbon dioxide are more and frequently used in the refrigeration industry. Due thermodynamic properties, R-744 is transcritical cycle an individual refrigerant. hereby article, high pressure of CO2 air temperature values were analysed. The measurements conducted on gas cooler side involved external summer period between 1 June 30 September 2018. “Booster” installation was one Polish supermarkets. Correlations required...
This study relates to 2D numerical calculations of oxidative fast pyrolysis pine and bark in a drop tube reactor at 550 °C. Numerical studies were supported by experiments using thermogravimetric analysis additionally pure lignin. The involved three different atmospheres pyrolysis: nitrogen, 95% nitrogen/5% oxygen 90% nitrogen/10% v/v. performed Euler-Lagrange multiphase theory. According received results, it was possible linearly reduce the amount char from 49% 34% for 57% 36% bark, as...