THERMAL SCIENCE
International Scientific Journal
A NOVEL VORTEX COMBUSTION DEVICE: EXPERIMENTS AND NUMERICAL SIMULATIONS WITH EMPHASIS ON THE COMBUSTION PROCESS AND NOX EMISSIONS
ABSTRACT
Experimental and numerical studies of combustion process in a vortex flow device have been developed. The modelling part of the study has been performed by means of ANSYS Fluent package. Fuel droplet trajectories and the flow pattern on their motions have been modeled by the function “injection”. The combustion process utilized the k-ε turbulence model. A special trend on the effect of the vortex generator blade orientation on the gross process has been developed. It has been established that optimal process performance (high air excess ratio and low NOx emissions) could be attained with an angle of the vortex generator blade orientation, especially with respect to the minimization of NOx emissions.
KEYWORDS
PAPER SUBMITTED: 2021-09-20
PAPER REVISED: 2022-01-10
PAPER ACCEPTED: 2022-01-13
PUBLISHED ONLINE: 2022-02-05
THERMAL SCIENCE YEAR
2022, VOLUME
26, ISSUE
Issue 2, PAGES [1971 - 1983]
- Amirreza, K., et. al., Mathematical modeling of multi-region premixed combustion of moist bamboo particles, Renewable Energy, 162 (C) (2020), pp. 1618-1628
- Lee, J., Mueller, M., Closure modeling for the conditional Reynolds stresses in turbulent premixed combustion, Proceedings of the Combustion Institute, 38 (2021), 2, pp. 3031-3038
- Zhu, R., et. al., Combustion instability analysis on a partially premixed swirl combustor by thermoacoustic experiments and modeling, Energy, 211 (2020), pp.118884
- Yang, T., et.al., Partially premixed combustion optimization using double injection strategy in transient operation, Applied Thermal Engineering, 169 (2020), pp.114963
- Pollack, M., et.al., Evaluation of Quadrature-based Moment Methods in turbulent premixed combustion, Proceedings of the Combustion Institute, 38 (2020), 2, pp.2877-2884
- El-Zoheiry, R. M., et. al., Combustion and emission characteristics of Jojoba biodiesel-jet A1 mixtures applying a lean premixed pre-vaporized combustion techniques: An experimental investigation, Renewable Energy, 162 (2020), pp. 2227-2245
- Vignat, G., et. al., An experimental study into the effect of injector pressure loss on self-sustained combustion instabilities in a swirled spray burner, Proceedings of the Combustion Institute, 37 (2019), 4, pp. 5205-5213.
- Chen, Z., et. al., Anthracite combustion characteristics and NOx formation of a 300 MWe down-fired boiler with swirl burners at different loads after the implementation of a new combustion system, Applied Energy, 189 (2017), pp. 133-141
- Li, Z., et. al., Effects of particle concentration variation in the primary air duct on combustion characteristics and NOx emissions in a 0.5-MW test facility with pulverized coal swirl burners, Applied Thermal Engineering, 73 (2014), 1, pp. 859-868
- Khanafer, K., Aithal S.M., Fluid-dynamic and NOx computation in swirl burners, International Journal of Heat and Mass Transfer, 54 (2011), 23-24, pp. 5030-5038
- Li, S., et. al., Effect of outer secondary-air vane angle on the flow and combustion characteristics and NOx formation of the swirl burner in a 300-MW low-volatile coal-fired boiler with deep air staging, Journal of the Energy Institute, 90 (2017), 2, pp. 239-256
- Zhou, H., et. al., Impact of OFA on combustion and NOx emissions of a large-scale laboratory furnace fired by a heavy-oil swirl burner, Applied Thermal Engineering, 90 (2015), pp. 994-1006.
- Jing, J., et. al., Influence of primary air ratio on flow and combustion characteristics and NOx emissions of a new swirl coal burner, Energy, 36 (2011), 2, pp. 1206-1213
- Cho, C.H., et. al., A numerical approach to reduction of NOx emission from swirl premix burner in a gas turbine combustor, Applied Thermal Engineering, 59 (2013), 2, pp. 454-463
- Umyshev, D.R., et. al., Experimental investigation of distance between v-gutters onx flame stabilization and NOx emissions, Thermal Science, 23 (2019), Part 5B, pp. 2971-2981
- Umyshev, D.R., et. al., Effects of different fuel supply types on combustion characteristics behind group of V-gutter flame holders: Experimental and numerical study, Thermal Science, 24 (2020), pp. 379-391
- ***, Environmental Code of the Republic of Kazakhstan (No 400-VI ЗРК), January 2, 2021, adilet.zan.kz/
- ***, Concept for the development of the fuel and energy complex of the Republic of Kazakhstan until 2030. Resolution of the Government of the Republic of Kazakhstan dated June 28, 2014 No. 724, adilet.zan.kz/
- Dostiyarov, A.M., Development of fuel-burning arrangement with microflame burning and method of calculation, Doctor of technical sciences thesis, Kazakh National Energy Institue, Almaty, Kazakhstan, 2000
- ***, Best Available Techniques (BAT) Reference Document for Large Combustion Plants. Industrial Emissions Directive 2010/75/EU Integrated Pollution Prevention and control, EU, 2017. www.publications.jrc.ec.europa.eu
- Ezhov, V.S., Gatilov, S.V., Semicheva, N.E., Hazardous emissions of heat power plants into the atmosphere and method of purification of smoke gases of autonomous heat supply heat generators, Proceedings, Youth and science: a step to success Conf., Kursk, Russia, 2019, Vol. 5, pp. 145-149