Education

Research Description

Dr. Saveliev's research interests involve areas of non-thermal plasmas and their application for pollution control, material processing and medicine, nanomaterial synthesis and processing in flames and plasmas, combustion in heterogeneous media, excess enthalpy flames and superadiabatic combustion, fuel processing and reformation, optical diagnostics of reacting flows. Presently, Dr. Saveliev is 1) working on pulsed discharges in liquids, on liquid/gas interfaces and in supercritical fluids, 2) developing optical sensor for characterization of natural gas mixtures and opportunity fuels, 3) studying flame synthesis of metal oxide nanomaterials in oxy-fuel flames, 4) studying fuel processing and reforming in excess enthalpy flames and plasmas, and 5) developing optical sensor for diagnostic of gasifier flames.

Publications

Emission Characteristics of Heat Recirculating Porous Burners With High Temperature Energy Extraction

Banerjee, A., & Saveliev, A. (2020), FRONTIERS IN CHEMISTRY, 8. https://doi.org/10.3389/fchem.2020.00067

NOx Minimization in Staged Combustion Using Rich Premixed Flame in Porous Media

Banerjee, A., Kundu, P., Gnatenko, V., Zelepouga, S., Wagner, J., Chudnovsky, Y., & Saveliev, A. (2019), COMBUSTION SCIENCE AND TECHNOLOGY. https://doi.org/10.1080/00102202.2019.1622532

High efficiency high temperature heat extraction from porous media reciprocal flow burner: Time-averaged model

Yao, Z., & Saveliev, A. V. (2018), APPLIED THERMAL ENGINEERING, 143, 614–620. https://doi.org/10.1016/j.applthermaleng.2018.07.144

High temperature heat extraction from counterflow porous burner

Banerjee, A., & Saveliev, A. V. (2018), INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 127, 436–443. https://doi.org/10.1016/j.ijheatmasstransfer.2018.08.027

Oscillatory coalescence of droplets in an alternating electric field

Choi, S., & Saveliev, A. V. (2017), Physical Review Fluids, 2(6). https://doi.org/10.1103/physrevfluids.2.063603

Volumetric flame synthesis of mixed tungsten-molybdenum oxide nanostructures

Farmahini-Farahani, M., Saveliev, A. V., & Merchan-Merchan, W. (2017), Proceedings of the Combustion Institute, 36(1), 1055–1063. https://doi.org/10.1016/j.proci.2016.08.054

The stabilization of partially-premixed jet flames in the presence of high potential electric fields

Kribs, J. D., Shah, P. V., Hutchins, A. R., Reach, W. A., Muncey, R. D., June, M. S., … Lyons, K. M. (2016), Journal of Electrostatics, 84, 1–9. https://doi.org/10.1016/j.elstat.2016.08.002

Nox reduction in partially premixed flames by flue gas recirculation

Chudnovsky, Y., Zelepouga, S., Saveliev, A., Wagner, J., & Gnatenko, V. (2015), Proceedings of the ASME International Mechanical Engineering Congress and Exposition, 2014, vol 8b. https://doi.org/10.1115/imece2014-39367

Volumetric flame synthesis of one-dimensional molybdenum oxide nanostructures

Srivastava, S., Desai, M., Merchan-Merchan, W., & Saveliev, A. V. (2015), Proceedings of the Combustion Institute, 35, 2307–2314. https://doi.org/10.1016/j.proci.2014.05.044

In situ emulsification using a non-uniform alternating electric field

Choi, S., & Saveliev, A. V. (2014), Applied Physics Letters, 105(7). https://doi.org/10.1063/1.4893670

View all publications via NC State Libraries

Grants

Optimization of Infrared and Convective Heat Transfer for Tile Coating Drying

(4/01/21 - 12/31/21)

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Optimization of Infrared and Convective Heat Transfer for Tile Coating Drying

Sponsor:

Start Date: 4/01/21

End Date: 12/31/21

Abstract

Acoustical ceiling tiles are formed as a mixture of water, starch, clay and mineral fibers with high initial water content. The water is initially removed from the wet tile by physical methods and, then, the tile is subject to long convective drying in a high temperature kiln. The development of a numerical model describing the ceiling tile kiln operation is proposed in this work with the overall goal to optimize energy efficiency and drying time, to improve process control, and to increase productivity of the drying process.

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Optimization of Infrared and Convective Heat Transfer for Tile Coating Drying

(3/22/21 - 9/30/21)

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Optimization of Infrared and Convective Heat Transfer for Tile Coating Drying

Sponsor:

Start Date: 3/22/21

End Date: 9/30/21

Abstract

Composite construction panels are manufactured from a specially engineered combination of synthetic gypsum and cellulose fibers to offer superior durability and water-resistance. The formed wet panels are died up in a convective cross-flow kiln that has a capability to control independently firing rates and airflow rates for multiple drying zones. We propose to perform numerical and experimental studies on cross-flow kiln drying of the panels with overall aim to optimize the drying performance, energy efficiency and product characteristics.

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OPTIMIZATION OF INFRARED AND CONVECTIVE HEAT TRANSFER FOR TILE COATING DRYING

(3/15/18 - 12/31/21)

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OPTIMIZATION OF INFRARED AND CONVECTIVE HEAT TRANSFER FOR TILE COATING DRYING

Sponsor:

Start Date: 3/15/18

End Date: 12/31/21

Abstract

A number of coatings are applied on tile boards during the manufacturing process. Convective and infrared drying methods and their combinations are currently employed to dry the various coatings. The major requirements to the drying process include short drying times, energy efficiency, and full control of the drying process. Currently used drying processes have low turn down ratios, often result in overheating and damage of the boards, have low flexibility, and require complex control approaches. The drying optimization in terms of efficiency and processing time can be achieved by numerical modeling of the drying process. The development of numerical model describing heat and mass transfer in the tile coatings is proposed in this work with the overall goal to optimize energy efficiency, drying times, and process control.

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High-efficiency Superadiabatic Burner for C-TEC microCHP GENSETS

(11/16/15 - 11/13/17)

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High-efficiency Superadiabatic Burner for C-TEC microCHP GENSETS

Sponsor:

Start Date: 11/16/15

End Date: 11/13/17

Abstract

To meet the challenging goals of the ARPA-E GENSETS FOA, a research team of NanoConversion Technologies, Gas Technology Institute, GE Appliances, and NC State University proposes to combine high-efficiency gas burner technology with a radical new electrochemical heat engine in a low cost natural gas appliance. A research group from NC State University has a strong background in superadiabatic combustion and will participate in development of compact high-efficiency low emission burner. Excess enthalpy or superadiabatic flames in porous media allows stable burning far beyond the conventional flammability limits. By recuperating the heat released in a porous medium, stable combustion can be attained in a wide range of equivalence ratios. As an example, very lean mixtures can be burned in the excess enthalpy flames to minimize pollution and reduce greenhouse effects. Heat regeneration in the porous matrix and low thermal non-equilibrium between the gas and the solid phases reduces combustion temperatures limiting thermal NOx production to extremely low levels.

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Minimization of NOx Formation in Ribbon Burners

(1/01/15 - 9/30/15)

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Minimization of NOx Formation in Ribbon Burners

Sponsor:

Start Date: 1/01/15

End Date: 9/30/15

Abstract

Due to low cost, simple design, and multiple functionality ribbon burners remain a workhouse r in many industries using natural gas for heating and processing applications. Recently, increasingly stringent air emission regulations were introduced that target pollution emissions from combustion systems. In particular, significant reductions in atmospheric discharge of nitrous oxides are expected to be implemented in a near future. Current ribbon burner designs do not meet these emission standards. Successful development of NOx minimization strategies will enable wide continuous applications of ribbon burners by industrial users. It will also allow the natural gas combustion utilizing industries to stay compliant with the new regulations.

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Commercial Prototype of Gas Quality Sensor For Opportunity Fuels

(11/30/-1 - 12/31/15)

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Commercial Prototype of Gas Quality Sensor For Opportunity Fuels

Sponsor:

Start Date: 11/30/-1

End Date: 12/31/15

Abstract

Modern demands imposed on energy efficiency and variety of natural gas mixtures used today for energy generation call for development of novel methods for characterization of fuel properties. The uncontrolled fuel composition changes lead to variation of flame structure and stability, enhanced generation of NOx and soot, change in the heating value and process efficiency. Novel real-time methods of fuel characterization are currently under development and spectroscopic methods are among them. Spectroscopic Gas Quality Sensor for characterization of opportunity fuels is proposed for further development and commercialization.

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Imaging and Data Acquisition for Prototype Gasifier Sensor

(8/01/12 - 12/31/14)

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Imaging and Data Acquisition for Prototype Gasifier Sensor

Sponsor:

Start Date: 8/01/12

End Date: 12/31/14

Abstract

Rapid development of novel combustion technologies imposes special requirements on diagnostic and control methods used. At present, the chemical composition of combustion gases is usually measured only in the exhaust stream providing average information on the performance of the combustion process. To maximize efficiency, while keeping emissions low, requires real-time information about the performance of each burner and/or spatial characteristics of the complex geometry flames. Industrial combustion and gasification processes will enormously benefit from novel 2-D sensors utilizing imaging techniques to map the flame species and defining the flame zones responsible for pollutant formation and efficiency losses. This project is further development and demonstration of the sensor technology developed under the "Optical Diagnostics of Gasifier Flames". Work will begin with modification of the sensor software to enable real time temperature data acquisition, processing and providing the obtained gasifier temperature information to the gasifier operators. The second project task will focus on the sensor hardware modifications needed to improve optical reliability of the sensor system.

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Numerical Modeling of Enhanced Hydrogen Recovery From Hydrogen Sulfide

(10/01/11 - 3/01/14)

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Numerical Modeling of Enhanced Hydrogen Recovery From Hydrogen Sulfide

Sponsor:

Start Date: 10/01/11

End Date: 3/01/14

Abstract

Hydrogen is the most coveted and cleanest of all fuels. Yet it is also very expensive, since it is obtained at an industrial scale only through natural gas, oil, or coal. In addition to being expensive, these hydrocarbon sources of hydrogen also release significant carbon dioxide emissions. The alternative of recovering hydrogen from H2S would be at the very least free and carbonless. In 2011 the National Science Foundation awarded a Phase II grant to Innovative Energy Solution. A numerical modeling is proposed to understand the complex reaction chemistry, heat transfer, and flow pattern occurring in the reactor. Numerical studies will be conducted based upon computational model of ultrarich superadiabatic flames formed in linear and cyclic flow reactors. Superadiabatic partial oxidation of an ultrarich H2S/oxidizer mixture will be represented within one-dimensional, unsteady model. The flame, treated in a volume-averaged approach, will be considered isobaric, and one-dimensional. The model, incorporating a comprehensive heat transfer mechanisms, will help in optimizing the reactor.

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Excess Enthalpy Porous Bed Combustion

(11/30/-1 - 3/31/15)

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Excess Enthalpy Porous Bed Combustion

Sponsor:

Start Date: 11/30/-1

End Date: 3/31/15

Abstract

Increasingly stringent air emissions and efficiency regulations will require significant reductions in atmospheric discharge of greenhouse gases primarily carbon dioxide, methane, and nitrous oxide. Excess enthalpy porous bed combustion frequently referred to as superadiabatic combustion has the potential to significantly reduce NOx and CO2 emissions by reducing peak flame temperatures and increasing efficiency. Successful development of the excess enthalpy combustion systems will enable the natural gas combustion utilizing industries to stay compliant with the new regulations and will enable industrial users of natural gas to remain competitive while continuing to burn natural gas for process heat.

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MODELING OF REGENERATIVE GAS GUARD RECUPERATOR

(11/30/-1 - 5/31/12)

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MODELING OF REGENERATIVE GAS GUARD RECUPERATOR

Sponsor:

Start Date: 11/30/-1

End Date: 5/31/12

Abstract

Increasing energy costs require essential improvements of energy utilization efficiencies of industrial systems. In particular, the efficiencies of aluminum melters could be increases be regeneration of the enthalpy from the high energy exhaust stream. Traditional methods have a limited applicability for these streams due to the presence of corrosive fluoride compounds. Concurrently, the removal of fluoride compounds from high temperature stream is impractical due to the low efficiencies of the absorbents at high temperatures. A concept of a regenerative gas guard regenerator (RGGR) is proposed to achieve a simultaneous removal of toxic and corrosive fluorine compounds and to regenerate the energy of the high temperature exhaust stream.

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