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Scientific Divisions / Laboratory of Combustion Processes (13)

Laboratory of Combustion Processes (13) 

Laboratory Chief

Dr. Nerijus Striūgas

Breslaujos 3, LT-44403 Kaunas

Phone: +370 (37) 40 18 77

Nerijus.Striugas

 


Laboratory of combustion processes

Info brochure (English)
Info brochure (Russian)

THE MAIN AREAS OF ACTIVITIES OF THE LABORATORY:

  • Investigation of gaseous, liquid and solid fuels combustion processes;
  • Development and optimization of industrial combustion devices;
  • Thermochemical (gasification, pyrolysis, carbonization) processing of biomass and non-hazardous waste;
  • Liquid and gaseous biofuel synthesis research.

Investigations of combustion and other thermochemical processes in order to valorize a biomass and waste usage for alternative biofuel and chemical production, reduce the environmental emissions and increase technology efficiency.


The Laboratory was formed by specialists of energy field and has over 20 years of research experience. Our main knowledge area – heat and mass transfer, combustion and gasification, environmental impact assesment, aerohydrodynamics, turbulence.



Development of innovative thermal decomposition technology and its application for sewage sludge utilization (INODUMTECH)

With an expanding infrastructure of wastewater collection and treatment, a resulting amount of sludge increases proportionally. Large sludge quantities are accumulated at its storage sites and therefore, management techniques used to date are becoming a threat to the environment and contradicts sustainable development principles. Therefore, effective way of sewage sludge treatment is an urgent matter. One of the innovative residual sludge disposal technology is gasification. By such technology, during thermal decomposition of sludge a valuable product is produced – flammable gas that further can be used for heat and power generation. Gasification process is not only used for volume reduction and extra energy production from sludge, but also for environmental pollution reduction.

INODUMTECH - sewage sludge utilisation solution



Modeling of combustion processes to reduce NOx generation

One of the secondary NOx reduction measures is an additional combustible gas supply to the flame zone. Modeling of any particular system can be done to ensure that optimal parameters will be used such as an additional gas flow rate, amount and angle of additional inlets, inlets head structure and an optimal combustible gas supply zone.


Modeling of combustion processes to reduce NOx generation

Lower quality biomass can be converted to heat or electricity by palletization and further use in the gasification process, during which the solid biofuel is converted into a gas fraction. Experimental investigation of the biofuel clumping phenomenon was carried out, which happened during the gasification process in the transition from pyrolysis to oxidation zones.




Experimental investigation of biomass drying intensification

Biomass moisture content affects a combustion process and an amount of useful heat release. An investigation of biomass drying intensification in the simulated furnace environment is carried out in order to find an optimal solution.



Investigation of chemiluminescence by atomic spectroscopy

Intensified CCD (ICCD) camera is used for a noninvasive investigation of gas combustion conditions and fuel parameters in a flame by analyzing the emitted radiation of chemiluminescent radicals.



Numerical modeling of granular media

Granular media is abundant in nature and also in many industrial applications. Solid fuel pellets is one of the granular media example used in industry for heat and power generation. Discrete elements method is widely used to model dynamics and interactions of granular particles.

Graph and community detection methods are used for large system evaluation. Modeling of granular media dynamics on a furnace grate allows to optimize the solid biomass, biofuel incineration technology and learn more about the involved fundamental processes.


Numerical investigation of fundamental phenomena occurring during the noninvasive intracranial pressure measurement

For a prevention of secondary brain damage it is important to monitor intracranial pressure. Numerical modelling on the noninvasive monitoring technique is carried out in order to learn more about the fundamental phenomena occurring during the measurement and to find an optimal parameters for intracranial pressure determination.

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