000121879 001__ 121879
000121879 005__ 20241125101129.0
000121879 0247_ $$2doi$$a10.3390/pr11020332
000121879 0248_ $$2sideral$$a132200
000121879 037__ $$aART-2023-132200
000121879 041__ $$aeng
000121879 100__ $$0(orcid)0000-0003-3157-6267$$aArroyo, Jorge
000121879 245__ $$aCFD Modeling and Validation of Blast Furnace Gas/Natural Gas Mixture Combustion in an Experimental Industrial Furnace
000121879 260__ $$c2023
000121879 5060_ $$aAccess copy available to the general public$$fUnrestricted
000121879 5203_ $$aThe use of residual gases from steel production processes as fuel for steel treatment furnaces has attracted great interest as a method for reducing fossil fuel consumption and the steel footprint. However, these gases often have a low calorific value, and a direct substitution can lead to low temperatures or combustion instability issues. CFD simulations of the combustion of these gases can help steel producers forecast the results of the substitution before real testing and implementation. In this study, a CFD model of an industrial experimental furnace in the steel sector is developed and validated. The results are calculated using the combustion, radiation, and heat transfer models included in the software Ansys Fluent. The validation of the simulated results is performed with data acquired from experimental tests under the same simulated conditions at three air-to-fuel equivalence ratios, which vary from an excess of 0% to an excess of 5% oxygen at the outlet. The model is adjusted to the results, capturing the trends of the measured physical variables and pollutant concentrations. In the case of the combustion temperature, the differences between the simulated and measured values vary from 0.03% to 6.9. Based on the simulation results, the use of blast furnace gas as fuel produces temperatures inside the chamber between 1004 °C and 1075 °C and high stream velocities because of the high flow needed to keep the power constant. Flames exhibit straight movements since the high flows absorb the effect of the swirling flames. The addition of natural gases increases the combustion temperature up to 1211 °C and reduces the flow and length of the flames. Finally, temperatures up to 1298 °C and shorter flames are reached with natural gas enriched with a stream of oxygen, but in this case, NOx emissions need to be controlled.
000121879 536__ $$9info:eu-repo/grantAgreement/EC/H2020/820771/EU/ Boosting new Approaches for flexibility Management By Optimizing process Off-gas and waste use/BAMBOO$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 820771-BAMBOO
000121879 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000121879 590__ $$a2.8$$b2023
000121879 592__ $$a0.525$$b2023
000121879 591__ $$aENGINEERING, CHEMICAL$$b80 / 170 = 0.471$$c2023$$dQ2$$eT2
000121879 593__ $$aChemical Engineering (miscellaneous)$$c2023$$dQ2
000121879 593__ $$aProcess Chemistry and Technology$$c2023$$dQ3
000121879 593__ $$aBioengineering$$c2023$$dQ3
000121879 594__ $$a5.1$$b2023
000121879 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000121879 700__ $$aPérez, Luis
000121879 700__ $$aCuervo-Piñera, Víctor
000121879 773__ $$g11, 2 (2023), 332 [24 pp.]$$pProcesses$$tPROCESSES$$x2227-9717
000121879 8564_ $$s8942004$$uhttps://zaguan.unizar.es/record/121879/files/texto_completo.pdf$$yVersión publicada
000121879 8564_ $$s2713874$$uhttps://zaguan.unizar.es/record/121879/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000121879 909CO $$ooai:zaguan.unizar.es:121879$$particulos$$pdriver
000121879 951__ $$a2024-11-22-11:58:34
000121879 980__ $$aARTICLE