@article{MTMT:34822026,
	title = {Detailed spray analysis of airblast atomization of various fuels in a reacting environment},
	url = {https://m2.mtmt.hu/api/publication/34822026},
	author = {Kardos, Réka and Rácz, Erika and Malý, M. and Jedelský, J. and Józsa, Viktor},
	doi = {10.1016/j.ijheatmasstransfer.2024.125548},
	journal-iso = {INT J HEAT MASS TRANS},
	journal = {INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER},
	volume = {227},
	unique-id = {34822026},
	issn = {0017-9310},
	abstract = {Understanding spray evolution in a reacting environment is critical to designing advanced, clean combustion systems. The processes in the upstream region determine flame shape, stability, ignition characteristics, pollutant emission, and combustion efficiency. The developed spray is never achieved in combustion since the early regions feature primary and secondary atomization, while droplets evaporate as they approach the flame. Consequently, there is no thermodynamic equilibrium before the flame front. The principal goal of this paper is to provide detailed information to model developers on various sprays measured by a Phase Doppler Anemometer; the processed measurement data is available as supplementary material, while the raw data will be provided upon request. Four different fuels were tested: diesel fuel, aviation kerosene type JP-8, biodiesel, and a 50 % biodiesel-diesel blend by volume. The plain-jet airblast atomizer was tested at four atomization gauge pressures (0.3, 0.45, 0.6, 0.75 barg). Therefore, sixteen different sprays were measured along one spray diameter at each of four downstream distances of 15, 25, 35, and 45 mm, measured from the nozzle tip. The paper details the droplet size distribution, droplet axial velocity, fluctuations, and correlation between size and velocity to facilitate a comprehensive understanding of liquid fuel sprays. This latter measure helps identify the overshooting phenomenon, i.e., localizing the regions where the large droplets move faster than the gas phase. © 2024 The Author(s)},
	keywords = {EVAPORATION; Drop formation; biofuel; Atomization; Diesel engines; Anemometers; Biodiesel; spray; spray; UPSTREAM REGION; Airblast atomizer; Airblast atomizer; ignition; reacting; reacting; Phase doppler anemometry; Phase doppler anemometry; Clean combustion; Combustion systems; Spray nozzles; Air blast; Flame shapes; Spray analysis},
	year = {2024},
	eissn = {1879-2189},
	orcid-numbers = {Józsa, Viktor/0000-0003-1220-3748}
}

@article{MTMT:34450307,
	title = {Effects of secondary breakup, collision dynamics, gravity and evaporation on droplet size distribution in a pressure-swirl JET A-1 spray},
	url = {https://m2.mtmt.hu/api/publication/34450307},
	author = {Jedelský, Jan and Malý, Milan and Vankeswaram, Sai Krishna and Zaremba, Matouš and Kardos, Réka and Csemány, Dávid and Červenec, Adam and Józsa, Viktor},
	doi = {10.1016/j.fuel.2023.130103},
	journal-iso = {FUEL},
	journal = {FUEL},
	volume = {359},
	unique-id = {34450307},
	issn = {0016-2361},
	abstract = {Size and velocity of droplets in pressure-swirl sprays vary with distance downstream the nozzle. This study aims to explain the phenomena contributing to size-resolved spatial variation of the drop size distribution for Jet A-1 spray from a small pressure swirl atomizer injected into quiescent ambient air at atmospheric conditions. The effects of secondary breakup, droplet collisions, gravity, drag-driven spray dispersion, and evaporation are evaluated. Phase Doppler anemometer (PDA) was used to resolve the velocity and size of the droplets in radial profiles at several axial distances (Z) from the nozzle exit at injection pressures between 0.5 and 1.5 MPa. The droplet motion and collision dynamics were qualitatively characterised by high-speed imaging. The analysis focused on areas along 1) the spray axis and 2) the liquid sheet direction. The first area covers small droplets with marginal evolution, while the mean drop size in the second area significantly increases downstream. The local drop size distribution and its axial evolution results from a combined effect of ballistic filtering (drifting of small droplets from periphery to spray centre and large droplets vice versa), centrifugal and turbulent droplet dispersion, and droplet collisions (increasing drop size with distance). The relative droplet-gas velocity was found at investigated Z positions too small for drag-driven secondary droplet breakup to occur. Evaporation of Jet A-1 sprayed at room temperature and pressure into still atmosphere reduces the drop size marginally. Trajectory of all drop sizes is insignificantly altered by gravity. The smallest droplets are strongly drag-driven to the spray axis, while large ones disperse centrifugally and have sufficient momentum to neglect the gravity. Combining results from imaging and laser diagnostics, various collision outcomes were identified, with a conclusion that these depend on the size and velocity of colliding droplets. Coalescing collisions dominate and strongly increase the mean drop size downstream the spray at off-axis positions while insignificantly contribute along the spray axis. The drop size span factor reduces with Z as separative collisions between large droplets and mixed-type collisions between small and large droplets narrow the drop size distribution. The above effects can be most easily amplified for drop size reduction via modification of physical properties of sprayed liquid by its heating.},
	year = {2024},
	eissn = {1873-7153},
	orcid-numbers = {Csemány, Dávid/0000-0002-5103-5540; Józsa, Viktor/0000-0003-1220-3748}
}

@article{MTMT:34433494,
	title = {The importance of unsteady phenomena of ammonia/methane combustion in an experimental swirl burner: Comparison of steady-state and transient simulation results},
	url = {https://m2.mtmt.hu/api/publication/34433494},
	author = {Füzesi, Dániel and Józsa, Viktor},
	doi = {10.1016/j.combustflame.2023.113207},
	journal-iso = {COMBUST FLAME},
	journal = {COMBUSTION AND FLAME},
	volume = {260},
	unique-id = {34433494},
	issn = {0010-2180},
	year = {2024},
	eissn = {1556-2921},
	orcid-numbers = {Füzesi, Dániel/0000-0002-0822-9972; Józsa, Viktor/0000-0003-1220-3748}
}

@article{MTMT:34193673,
	title = {Numerical investigation on the effect of hydrogen share in NH3/H2 blends in a turbulent lean-premixed swirl burner},
	url = {https://m2.mtmt.hu/api/publication/34193673},
	author = {Füzesi, Dániel and Józsa, Viktor and Csemány, Dávid},
	doi = {10.1016/j.ijhydene.2023.09.091},
	journal-iso = {INT J HYDROGEN ENERG},
	journal = {INTERNATIONAL JOURNAL OF HYDROGEN ENERGY},
	volume = {49},
	unique-id = {34193673},
	issn = {0360-3199},
	year = {2024},
	eissn = {1879-3487},
	pages = {816-827},
	orcid-numbers = {Füzesi, Dániel/0000-0002-0822-9972; Józsa, Viktor/0000-0003-1220-3748; Csemány, Dávid/0000-0002-5103-5540}
}

@article{MTMT:34486492,
	title = {Vanádium-redox akkumulátor töltési-kisütési karakterisztikájának vizsgálata},
	url = {https://m2.mtmt.hu/api/publication/34486492},
	author = {Sziffer, Bence and Józsa, Viktor},
	journal-iso = {MAGYAR ENERGETIKA},
	journal = {MAGYAR ENERGETIKA},
	volume = {XXX},
	unique-id = {34486492},
	issn = {1216-8599},
	year = {2023},
	pages = {2-10},
	orcid-numbers = {Józsa, Viktor/0000-0003-1220-3748}
}

@misc{MTMT:34153278,
	title = {Detailed Spray Analysis of Airblast Atomization of Various Fuels in a Reacting Environment},
	url = {https://m2.mtmt.hu/api/publication/34153278},
	author = {Kardos, Réka and Rácz, Erika and Milan, Malý and Jan, Jedelský and Józsa, Viktor},
	unique-id = {34153278},
	year = {2023},
	orcid-numbers = {Józsa, Viktor/0000-0003-1220-3748}
}

@article{MTMT:34111414,
	title = {Life cycle assessment of a micro-region Hungarian municipal solid waste: Evaluation of six waste-to-energy scenarios},
	url = {https://m2.mtmt.hu/api/publication/34111414},
	author = {Kovács, Viktória Barbara and Tóthpálné Hidegh, Gyöngyvér and Rácz, Erika and Szücs, Botond and Csókai, Viktor and Józsa, Viktor},
	doi = {10.1016/j.enconman.2023.117568},
	journal-iso = {ENERG CONVERS MANAGE},
	journal = {ENERGY CONVERSION AND MANAGEMENT},
	volume = {294},
	unique-id = {34111414},
	issn = {0196-8904},
	year = {2023},
	eissn = {1879-2227},
	orcid-numbers = {Kovács, Viktória Barbara/0000-0002-3736-3329; Józsa, Viktor/0000-0003-1220-3748}
}

@article{MTMT:34077824,
	title = {Flame emission spectroscopy analysis of distributed liquid fuel combustion},
	url = {https://m2.mtmt.hu/api/publication/34077824},
	author = {Tóthpálné Hidegh, Gyöngyvér and Pizág, Bertalan and Urbin, Ágnes and Rácz, Erika and Józsa, Viktor},
	doi = {10.1016/j.fuel.2023.129193},
	journal-iso = {FUEL},
	journal = {FUEL},
	volume = {353},
	unique-id = {34077824},
	issn = {0016-2361},
	year = {2023},
	eissn = {1873-7153},
	orcid-numbers = {Pizág, Bertalan/0000-0002-5950-8082; Urbin, Ágnes/0000-0002-6253-8776; Józsa, Viktor/0000-0003-1220-3748}
}

@article{MTMT:34069684,
	title = {Ammonia/methane dual-fuel injection and Co-firing strategy in a swirl flame combustor for pollutant emissions control},
	url = {https://m2.mtmt.hu/api/publication/34069684},
	author = {Wang, S. and Chong, C.T. and Xie, T. and Józsa, Viktor and Ng, J.-H.},
	doi = {10.1016/j.energy.2023.128221},
	journal-iso = {ENERGY},
	journal = {ENERGY},
	volume = {281},
	unique-id = {34069684},
	issn = {0360-5442},
	year = {2023},
	eissn = {1873-6785},
	orcid-numbers = {Józsa, Viktor/0000-0003-1220-3748}
}

@article{MTMT:34037355,
	title = {Levegő-segédközeges porlasztó tüzelőanyagpermetében kialakuló sebességképek értékelése reaktív körülmények esetén [Velocity profiles in the spray of an airblast atomizer under reactive conditions]},
	url = {https://m2.mtmt.hu/api/publication/34037355},
	author = {Kardos, Réka and Józsa, Viktor},
	journal-iso = {MAGYAR ENERGETIKA},
	journal = {MAGYAR ENERGETIKA},
	volume = {30},
	unique-id = {34037355},
	issn = {1216-8599},
	year = {2023},
	pages = {7-13},
	orcid-numbers = {Józsa, Viktor/0000-0003-1220-3748}
}