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BME Combustion Research Group

Research keywords: · combustion · energy · modeling · simulation · spray · biofuel

Dr. Viktor Józsa

Associate Professor

PhD

H-1111 Budapest, Bertalan Lajos u. 4-6, BME, D building, room D204/C

+3614632596

jozsa.viktor@gpk.bme.hu

Erika Rácz

PhD Student

Dániel Füzesi

PhD Student

Dávid Csemány

PhD Student

Introduction of the Research Group

Our research group was formed in 2017 by winning an OTKA-FK grant. The first internationally significant breakthrough was achieved in 2019 with the development of the Mixed Temperature-Controlled combustion concept, MTC. We are still working on learning more about the fundamentals of this combustion concept and employing it in practical applications. In particular, power plants, jet engines, boilers, and other industrial combustion plants can benefit from technology with particularly low emissions. Our research team is actively collaborating with Brno University of Technology and Shanghai Jiao Tong University. Our latest collaborating partner is the Center for Energy Research, part of the Eötvös Lóránd Research Network. Solving problems in combustion is a complex task; in addition to the simultaneous mass, moment, and energy transfer processes, it is also necessary to consider reaction kinetics. We have already utilized this mindset in a number of alternative areas, from power plants to medical product development. 

The measurements are performed in the György Jendrassik Thermal Engineering Laboratory of the department, and mostly the ANSYS Fluent software environment is used for the simulation tasks besides Matlab. Our modular, low-emission burner can be operated with various gaseous and liquid fuels, including low-volatility biodiesels, and dual-fuel combustion is also possible. Our goal is to rationally solve global energy problems at the device level, contributing to a greener future. We have already utilized this mindset in a number of alternative areas, from power plants to medical product development. In the field of research and industrial relations, we focus on both domestic and international, market-leading, global players. 


Watch our 3-minute introductory video:

Achievements

- Development of a new combustion concept (Mixed Temperature-Controlled combustion, MTC) with 50% lower emissions compared to the most advanced solution currently used in the industry
- Successful numerical modeling of the MTC combustion concept, which was not predicted by any theory
- Development of a general method for determining the velocity of the gas phase in a spray formed during atomization
- Introduction of the limiting viscosity term in the case of air-assisted atomization
- Combustion control by flame noise (patent)
- Designing a unique burner for the disposal of flammable, highly polluting chemical by-products in the range of 0-150 kW
- Design of a unique burner for the utilization of pyrolysis gas produced from municipal waste
- Thermal, mechanical, and fluid dynamical simulation of various industrial devices.

Publications

1. Dynamics and emission of nearly flameless combustion of waste cooking oil biodiesel in an ultra-low emission non-MILD swirl burner, Józsa Viktor, Gyöngyvér Tóthpálné Hidegh, Dávid Csemány, Réka Anna Kardos, Cheng TungChong, 2022, https://doi .org/10.1016/j.fuel.2022.123743
2. Numerical modeling of distributed combustion without air dilution in a novel ultra-low emission turbulent swirl burner, Dániel Füzesi, Milan Malý, Jan Jedelský, Viktor Józsa, 2022, https://doi .org/10.1063/5.0085058
3. Mixture temperature-controlled combustion: A revolutionary concept for ultra-low NOX emission, Viktor Józsa, 2021, https://doi.org/10.1016/j.fuel.2021.120200
4. Application of big data analysis technique on high-velocity airblast atomization: Searching for optimum probability density function, András Urbán, Axel Groniewsky, Milan Malý, Viktor Józsa, Jan Jedelský, 2020, https://doi.org/10.1016/j .fuel.2020.117792
5. Solving Problems in Thermal Engineering: A Toolbox for Engineers, Viktor Józsa, Róbert Kovács, 2020, https://doi.org/10.1007/978-3-030-33475-8

Patents

A method for determining the flame shape of a swirling flame in a closed combustion chamber Description, https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2021165708

Awards

Junior Prima prize, Youth prize of the Hungarian Academy of Sciences

Journals

WoS Q1: Fuel, Energy Conversion and Management, Physics of Fluids, Energy

Infrastructure

An own-developed combustion test rig for a wide range of gaseous and liquid fuels with an option of dual-fuel combustion.

Projects

1. Development of a low emission burner for modern liquid fuels, 2017-2021, NKFIH - OTKA-FK 124704, principal investigator
2. Optical investigation of distributed combustion, 2021-2025, NKFIH - OTKA-FK 137758, principal investigator
3. Complex utilization of unsorted municipal waste, energy utilization, 2019-2022, NKFIH - 2019-1.1.1-PIACI-KFI-2019-00200, leader of the energy subproject
4. Increasing and integrating the interdisciplinary scientific potential relating to aviation safety into the international research network at the National University of Public Service (VOLARE), GINOP-2.3.2-15-2016-00007, Heat engine expert

Industry relations

GE, Siemens, Alstom, Rolls-Royce, 3B Hungária Kft., Vinyl Kft., Waters Research Center Kft., ISD Power Kft., Texas Institute of Science, Brno University of Technology, Nuclear Power Plant Paks

Conferences

16th Conference on Sustainable Development of Energy, Water, and Environment Systems, Dubrovnik, Croatia, October 10-15, 2021, Dr. Józsa Viktor, invited participant, Renewable Fuels and New Technologies in Sustainable Combustion section

Other activities

Member, The Hungarian Section of the Combustion Institute