Authors | Title | Pages |
Jarosław Boryca | Computer Calculation Program for Heating the Cylinder at a Constant Surface Temperature of the Charge | 01-04 |
Magdalena Skrzyniarz, Julia Zub, Wojciech Królikowski, Wiktor Stachurski, Dominik Gałązka, Sławomir Morel, Monika Zajemska | Modelling the Formation of NO, NO2, CO2 and CO During Natural Gas Combustion in High-temperature Heating Chamber | 05-19 |
Ján Kizek, Róbert Dzurňák, Marcel Fedák, Augustín Varga, Denys Zhumar | Analysis of Pressure Losses in Experimental Devices for Measuring Small Gas Flows Using CFD Modelling | 10-18 |
Pages 01-04
Title: |
Computer Calculation Program for Heating the Cylinder at a Constant Surface Temperature of the Charge |
|
Authors: |
Jarosław Boryca |
|
Abstract: |
As part of the work, on the basis of analytical relationships, a computer program was developed, which was used to calculate the heating process of a cylindrical charge. Calculations were made for heating at a constant temperature of the charge surface. Changes in the temperature of the charge axis, furnace temperature and unit heat flow during heating were also determined. |
|
Citation: |
Boryca Jarosław: Computer Calculation Program for Heating the Cylinder at a Constant Surface Temperature of the Charge, Advance in Thermal Processes and Energy Transformation, Volume 7, No.1 (2024), pp. 01-04, ISSN 2585-9102. https://doi.org/10.54570/atpet2024/07/01/0001 |
Pages 05-09
Title: |
Modelling the Formation of NO, NO2, CO2 and CO During Natural Gas Combustion in High-temperature Heating Chamber |
|
Authors: |
Magdalena Skrzyniarz, Julia Zub, Wojciech Królikowski, Wiktor Stachurski, Dominik Gałązka, Sławomir Morel, Monika Zajemska |
|
Abstract: |
The article presents the results of computer simulations of the formation of selected natural gas combustion products in a high-temperature heating chamber, which is a model of a pusher heating furnace. Calculations were performed using the licensed ANSYS CHEMKIN-PRO software. The mechanism selected for the calculations was one of the most commonly employed chemical mechanisms for methane combustion, namely GRI-Mech 3.0. The calculations were based on the perfectly stirred reactor (PSR). The result of the calculations was an estimation of the influence of the temperature and residence time on the chemical composition of the exhaust gases, in particular undesirable combustion products such as NO, NO2, CO2 and CO. The obtained results of numerical calculations can constitute the basis for diagnostics of the combustion process in terms of emitted pollutants, and may also be useful in taking actions aimed at optimizing the entire combustion process. Knowledge of the mechanisms of pollutant formation may also play an important role in the energy use of process gases, including those from the thermal conversion of waste. |
|
Citation: |
Skrzyniarz Magdalena, Zub Julia, Królikowski Wojciech, Stachurski Wiktor, Gałązka Dominik, Morel Sławomir, Zajemska Monika: Modelling the Formation of NO, NO2, CO2 and CO During Natural Gas Combustion in High-temperature Heating Chamber, Advance in Thermal Processes and Energy Transformation, Volume 7, No.1 (2024), pp. 05-09, ISSN 2585-9102, https://doi.org/10.54570/atpet2024/07/01/0005 |
Pages 10-18
Title: |
Analysis of Pressure Losses in Experimental Devices for Measuring Small Gas Flows Using CFD Modelling |
|
Authors: |
Ján Kizek, Róbert Dzurňák, Marcel Fedák, Augustín Varga, Denys Zhumar |
|
Abstract: |
In the paper, the authors analysed pressure losses on experimental devices for measuring small flows of gaseous media using CFD modelling. The visualization of the obtained results using CFD models for 3 experimental devices illustrates the pressure profiles for these devices. The created CFD models compare different principles of creating pressure loss on created devices. From the analysis of pressure profiles, it is possible to observe the tendencies of pressure decreases along the length of experimental devices for measuring small flows. Modelling results can be used for possible modifications of experimental equipment. |
|
Citation: |
Kizek Ján, Dzurňák Róbert, Fedák Marcel, Varga Augustín, Zhumar Denys: Analysis of Pressure Losses in Experimental Devices for Measuring Small Gas Flows Using CFD Modelling, Advance in Thermal Processes and Energy Transformation, Volume 7, No.1 (2024), pp. 10-18, ISSN 2585-9102, https://doi.org/10.54570/atpet2024/07/01/0010 |