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

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

Yao, Zhaoxi and Saveliev, Alexei and , V (2018), APPLIED THERMAL ENGINEERING, 143(), 614-620.

High temperature heat extraction from counterflow porous burner

Banerjee, Abhisek and Saveliev, Alexei and , V (2018), INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 127(), 436-443.

Oscillatory coalescence of droplets in an alternating electric field

Choi, S. and Saveliev, A. V. (2017), Physical Review Fluids, 2(6), .

Volumetric flame synthesis of mixed tungsten-molybdenum oxide nanostructures

Farmahini-Farahani, M. and Saveliev, A. V. and Merchan-Merchan, W. (2017), Proceedings of the Combustion Institute, 36(1), 1055-1063.

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

Kribs, J. D. and Shah, P. V. and Hutchins, A. R. and Reach, W. A. and Muncey, R. D. and June, M. S. and Saveliev, A. and Lyons, K. M. (2016), Journal of Electrostatics, 84(), 1-9.

Nox reduction in partially premixed flames by flue gas recirculation

Chudnovsky, Y. and Zelepouga, S. and Saveliev, A. and Wagner, J. and Gnatenko, V. (2015), Proceedings of the ASME International Mechanical Engineering Congress and Exposition, 2014, vol 8b, (), .

Volumetric flame synthesis of one-dimensional molybdenum oxide nanostructures

Srivastava, S. and Desai, M. and Merchan-Merchan, W. and Saveliev, A. V. (2015), Proceedings of the Combustion Institute, 35(), 2307-2314.

In situ emulsification using a non-uniform alternating electric field

Choi, S. and Saveliev, A. V. (2014), Applied Physics Letters, 105(7), .

Submicrometre particle filtration with a dc activated plasma textile

Rasipuram, S. C. and Wu, M. and Kuznetsov, I. A. and Kuznetsov, A. V. and Levine, J. F. and Jasper, W. J. and Saveliev, A. V. (2014), Journal of Physics. D, Applied Physics, 47(2), .

Ultrarich filtration combustion of ethane

Toledo, M. and Utria, I. and Saveliev, A. V. (2014), Energy & Fuels, 28(2), 1536-1540.

Enhanced performance of electrothermal plasma sources as fusion pellet injection drivers and space based mini-thrusters via extension of a flattop discharge current

Winfrey, A. L. and Abd Al-Halim, M. A. and Saveliev, A. V. and Gilligan, J. G. and Bourham, M. A. (2013), Journal of Fusion Energy, 32(3), 371-377.

Development of active porous medium filters based on plasma textiles

Kuznetsov, I. A. and Saveliev, A. V. and Rasipuram, S. and Kuznetsov, A. V. and Brown, A. and Jasper, W. (2012), AIP Conference Proceedings, 1453(), 265-270.

Flame volume synthesis of carbon-coated WO3 nanoplatelets and nanorods

Merchan-Merchan, W. and Saveliev, A. V. and Sanmiguel, S. G. and Farahani, M. F. (2012), Journal of Nanoparticle Research, 14(12), .

Heating value sensor for producer gas

Jangale, V. V. and Saveliev, A. and Zelepouga, S. and Gnatenko, V. and Pratapas, J. M. (2012), Proceedings of the ASME Internal Combustion Engine Division Fall Technical Conference (ICEF), (), 817-822.

Hybrid filtration combustion of natural gas and coal

Toledo, M. G. and Utria, K. S. and Gonzalez, F. A. and Zuniga, J. P. and Saveliev, A. V. (2012), International Journal of Hydrogen Energy, 37(8), 6942-6948.

Partial oxidation of methane in a reciprocal flow porous burner with an external heat source

Zheng, C. H. and Cheng, L. M. and Cen, K. F. and Bingue, J. P. and Saveliev, A. (2012), International Journal of Hydrogen Energy, 37(5), 4119-4126.

Partial oxidation of methane in porous reactor: Part I. Unidirectional flow

Zheng, C. H. and Cheng, L. M. and Bingue, J. P. and Saveliev, A. and Cen, K. F. (2012), Energy & Fuels, 26(8), 4849-4856.

A study of plasma parameters in a capillary discharge with calculations using ideal and nonideal plasma models for comparison with experiment

Winfrey, A. L. and Abd Al-Halim, M. A. and Gilligan, J. G. and Saveliev, A. V. and Bourham, M. A. (2012), IEEE Transactions on Plasma Science, 40(3), 843-852.

Gas and solid phase temperature measurements of porous media combustion

Zheng, C. H. and Cheng, L. M. and Saveliev, A. and Luo, Z. Y. and Cen, K. F. (2011), Proceedings of the Combustion Institute, 33(), 3301-3308.

Increasing the solar cell power output by coating with transition metal-oxide nanorods

Kuznetsov, I. A. and Greenfield, M. J. and Mehta, Y. U. and Merchan-Merchan, W. and Salkar, G. and Saveliev, A. V. (2011), Applied Energy, 88(11), 4218-4221.

Modeling of an ablation-free electrothermal plasma pellet accelerator

Winfrey, A. L. and Abd Al-Halim, M. and Gilligan, J. G. and Saveliev, A. V. and Bourham, M. A. (2011), Fusion Science and Technology, 60(2), 480-485.

Numerical studies on flame inclination in porous media combustors

Zheng, C. H. and Cheng, L. M. and Saveliev, A. and Luo, Z. Y. and Cen, K. F. (2011), International Journal of Heat and Mass Transfer, 54(15-16), 3642-3649.

Solid support flame synthesis of 1-D and 3-D tungsten-oxide nanostructures

Merchan-Merchan, W. and Saveliev, A. V. and Jimenez, W. C. (2011), Proceedings of the Combustion Institute, 33(), 1899-1908.

Syngas production in hybrid filtration combustion

Toledo, M. and Vergara, E. and Savelieu, A. V. (2011), International Journal of Hydrogen Energy, 36(6), 3907-3912.

Ultra-low-emission steam boiler constituted of reciprocal flow porous burner

Barcellos, W. M. and Souza, L. C. E. O. and Saveliev, A. V. and Kennedy, L. A. (2011), Experimental Thermal and Fluid Science, 35(3), 570-580.

Combustion synthesis of carbon nanotubes and related nanostructures

Merchan-Merchan, W. and Saveliev, A. V. and Kennedy, L. and Jimenez, W. C. (2010), Progress in Energy and Combustion Science, 36(6), 696-727.

Flame synthesis of hybrid nanowires with carbon shells and tungsten-oxide cores

Merchan-Merchan, W. and Saveliev, A. V. and Jimenez, W. C. and Salkar, G. (2010), Carbon, 48(15), 4510-4518.

Novel flame-gradient method for synthesis of metal-oxide channels, nanowires and nanorods

Merchan-Merchan, W. and Saveliev, A. V. and Cuello-Jimenez, W. (2010), Journal of Experimental Nanoscience, 5(3), 199-212.

Hydrogen production in ultrarich combustion of hydrocarbon fuels in porous media

Toledo, M. and Bubnovich, V. and Saveliev, A. and Kennedy, L. (2009), International Journal of Hydrogen Energy, 34(4), 1818-1827.

Influence of electrode characteristics on DC point-to-plane breakdown in high-pressure gaseous and supercritical carbon dioxide

Lock, E. and Saveliev, A. and Kennedy, L. (2009), IEEE Transactions on Plasma Science, 37(), 1078-1083.

Nucleation and growth mechanism for flame synthesis of MoO2 hollow microchannels with nanometer wall thickness

Merchan-Merchan, W. and Saveliev, A. V. and Taylor, A. M. (2009), Micron, 40(8), 821-826.

Opposed flow oxy-flame synthesis of carbon and oxide nanostructures on molybdenum probes

Merchan-Merchan, W. and Saveliev, A. V. and Nguyen, V. (2009), Proceedings of the Combustion Institute, 32(), 1879-1886.

Plasma chemical reactor with exploding water jet

Shmelev, V. M. and Saveliev, A. V. and Kennedy, L. A. (2009), Plasma Chemistry and Plasma Processing, 29(4), 275-290.

Volumetric flame synthesis of well-defined molybdenum oxide nanocrystals

Merchan-Merchan, W. and Saveliev, A. V. and Desai, M. (2009), Nanotechnology, 20(47), .

High rate flame synthesis of highly crystalline iron oxide nanorods

Merchan-Merchan, W. and Saveliev, A. V. and Taylor, A. M. (2008), Nanotechnology, 19(), 125605-125609.

A numerical and experimental study of counterflow syngas flames at different pressures

Som, S. and Ramirez, A. I. and Hagerdorn, J. and Saveliev, A. and Aggarwal, S. K. (2008), Fuel (London, England), 87(), 319-334.

Coating of inner and outer carbon nanotube surfaces with polymers in supercritical CO2

Lock, E. and Merchan-Merchan, W. and D'Arcy, J. and Saveliev, A. V. and Kennedy, L. A. (2007), Journal of Physical Chemistry. C, 111(), 13655-13658.

NO reburning in ultrarich filtration combustion of methane

Bingue, J. P. and Saveliev, A. V. and Kennedy, L. A. (2007), Proceedings of the Combustion Institute, 31(2), 3417-3424.

OH and CH luminescence in opposed flow methane oxy-flames

De Leo, M. and Saveliev, A. and Kennedy, L. A. and Zelepouga, S. A. (2007), Combustion and Flame, 149(4), 435-447.

Flame nanotube synthesis in moderate electric fields: From alignment and growth rate effects to structural variations and branching phenomena

Merchan-Merchan, W. and Saveliev, A. V. and Kennedy, L. A. (2006), Carbon, 44(15), 3308-3314.

Flame synthesis of molybdenum oxide whiskers

Merchan-Merchan, W. and Saveliev, A. V. and Kennedy, L. A. (2006), Chemical Physics Letters, 422(1-3), 72-77.

Methanol and dimethyl sulfide removal by pulsed corona. Part I: Experiment

Lock, E. and Saveliev, A. and Kennedy, L. A. (2006), Plasma Chemistry and Plasma Processing, 26(), 527-542.

Reply on the comments "Initiation of pulsed corona discharge under supercritical conditions"

Lock, E. and Saveliev, A. and Kennedy, L. A. (2006), IEEE Transactions on Plasma Science, 34(), 2467-2468.

Energy extraction from a porous media reciprocal flow burner with embedded heat exchangers

Contarin, F. and Barcellos, W. M. and Saveliev, A. and Kennedy, L. A. (2005), Journal of Heat Transfer, 127(), 123-130.

Fullerene formation in atmospheric pressure opposed flow oxy-flames

Silvestrini, W. H. and Merchan-Merchan, W. and Saveliev, A. and Kennedy, L. A. (2005), Proceedings of the Combustion Institute, 30(2), 2545-2552.

Initiation of pulsed corona discharge under supercritical conditions

Lock, E. and Saveliev, A. and Kennedy, L. A. (2005), IEEE Transactions on Plasma Science, 33(), 850-853.

Conversion of hydrogen sulfide to hydrogen by superadiabatic partial oxidation: Thermodynamic consideration

Slimane, R. B. and Lau, F. S. and Khinkis, M. and Bingue, J. P. and Saveliev, A. V. and Kennedy, L. A. (2004), International Journal of Hydrogen Energy, 29(14), 1471-1477.

High-rate flame synthesis of vertically aligned carbon nanotubes using electric field control

Merchan-Merchan, W. and Saveliev, A. V. and Kennedy, L. A. (2004), Carbon, 42(), 599-604.

Optimization of hydrogen production by filtration combustion of methane by oxygen enrichment and depletion

Bingue, J. P. and Saveliev, A. V. and Kennedy, L. A. (2004), International Journal of Hydrogen Energy, 29(13), 1365-1370.

Carbon nanostructures in opposed-flow methane oxy-flames

Merchan-Merchan, W. and Saveliev, A. V. and Kennedy, L. (2003), Combustion Science and Technology, 175(), 2217-2236.

Experimental assessment of pulsed corona discharge for treatment of VOC emissions in paper and forest industry

Sobacchi, M. G. and Saveliev, A. V. and Fridman, A. A. and Gutsol, A. F. and Kennedy, L. A. (2003), Plasma Chemistry and Plasma Processing, 23(), 347-370.

Metal catalyzed carbon nanostructures in an opposed flow methane oxygen flame

Saveliev, A. and Merchan-Merchan, W. and Kennedy, L. A. (2003), Combustion and Flame, 135(1-2), 27-33.

A reciprocal flow filtration combustor with embedded heat exchangers: Numerical study

Contarin, F. and Saveliev, A. V. and Fridman, A. A. and Kennedy, L. A. (2003), International Journal of Heat and Mass Transfer, 46(6), 949-961.

Experimental assessment of a combined plasma/catalytic system for hydrogen production via partial oxidation of hydrocarbon fuels

Sobacchi, M. G. and Saveliev, A. V. and Fridman, A. A. and Kennedy, L. A. and Ahmed, S. and Krause, T. (2002), International Journal of Hydrogen Energy, 27(6), 635-642.

Filtration combustion of a methane wave in air for oxygen-enriched and oxygen-depleted environments

Kennedy, L. A. and Saveliev, A. V. and Bingue, J. P. and Fridman, A. A. (2002), Proceedings of the Combustion Institute, 29(1), 835-841.

Formation of carbon nanotubes in counter-flow, oxy-methane diffusion flames without catalyst

Merchan-Merchan, W. and Saveliev, A. V. and Kennedy, L. A. and Fridman, A. A. (2002), Chemical Physics Letters, 354(1-2), 20-24.

Hydrogen production in ultra-rich filtration combustion of methane and hydrogen sulfide

Bingue, J. P. and Saveliev, A. V. and Fridman, A. A. and Kennedy, L. A. (2002), International Journal of Hydrogen Energy, 27(6), 643-649.

Hydrogen sulfide filtration combustion: Comparison of theory and experiment

Bingue, J. P. and Saveliev, A. V. and Fridman, A. A. and Kennedy, L. A. (2002), Experimental Thermal and Fluid Science, 26(2-4), 409-415.

Soot and NO formation in methane?oxygen enriched diffusion flames

Beltrame, A. and Porshnev, P. and Merchan-Merchan, W. and Saveliev, A. and Fridman, A. and Kennedy, L. A. and Petrova, O. and Shdanok, S. and Amouri, F. and Charon, O. (2001), Combustion and Flame, 124(1-2), 295-310.

Chemical structures of methane-air filtration combustion waves for fuel-lean and fuel-rich conditions

Kennedy, L. A. and Bingue, J. P. and Saveliev, A. V. and Fridman, A. A. and Foutko, S. I. (2000), Proceedings of the Combustion Institute, 28(1), 1431-1438.

Relative effect of acetylene and PAHs addition on soot formation in laminar diffusion flames of methane with oxygen and oxygen-enriched air

Zelepouga, S. A. and Saveliev, A. V. and Kennedy, L. A. and Fridman, A. A. (2000), Combustion and Flame, 122(1-2), 76-89.

Soot formation effects of oxygen concentration in the oxidizer stream of laminar coannular nonpremixed methane/air flames

Lee, K.-O. and Megaridis, C. M. and Zelepouga, S. and Saveliev, A. V. and Kennedy, L. A. and Charon, O. and Ammouri, F. (2000), Combustion and Flame, 121(1-2), 323-333.

Employing plasma as catalyst in hydrogen production

Mutaf-Yardimci, O. and Saveliev, A. V. and Fridman, A. A. and Kennedy, L. A. (1998), International Journal of Hydrogen Energy, 23(12), 1109-1111.

Gliding arc gas discharge

Fridman, A. and Nester, S. and Kennedy, L. A. and Saveliev, A. and Mutaf-Yardimci, O. (1998), Progress in Energy and Combustion Science, 25(2), 211-231.

Syngas production using superadiabatic combustion of ultra-rich methane-air mixtures

Drayton, M. K. and Saveliev, A. V. and Kennedy, L. A. and Fridman, A. A. and Li, Y.-E. (1998), Symposium (International) on Combustion, 27(1), 1361-1367.

View all publications via NC State Libraries

Grants

OPTIMIZATION OF INFRARED AND CONVECTIVE HEAT TRANSFER FOR TILE COATING DRYING

USG Corporation(3/15/18 - 12/31/18)

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OPTIMIZATION OF INFRARED AND CONVECTIVE HEAT TRANSFER FOR TILE COATING DRYING

Sponsor: USG Corporation

Start Date: 3/15/18

End Date: 12/31/18

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

US Dept. of Energy (DOE) - Advanced Research Projects Agency - Energy (ARPA-E)(11/16/15 - 11/13/17)

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High-efficiency Superadiabatic Burner for C-TEC microCHP GENSETS

Sponsor: US Dept. of Energy (DOE) - Advanced Research Projects Agency - Energy (ARPA-E)

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

Utilization Technology Development(1/01/15 - 9/30/15)

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Minimization of NOx Formation in Ribbon Burners

Sponsor: Utilization Technology Development

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

Utilization Technology Development(11/30/-1 - 12/31/15)

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Commercial Prototype of Gas Quality Sensor For Opportunity Fuels

Sponsor: Utilization Technology Development

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

US Dept. of Energy (DOE)(8/01/12 - 12/31/14)

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Imaging and Data Acquisition for Prototype Gasifier Sensor

Sponsor: US Dept. of Energy (DOE)

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

National Science Foundation (NSF)(10/01/11 - 3/01/14)

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Numerical Modeling of Enhanced Hydrogen Recovery From Hydrogen Sulfide

Sponsor: National Science Foundation (NSF)

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

Southern California Gas Company(11/30/-1 - 3/31/15)

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Excess Enthalpy Porous Bed Combustion

Sponsor: Southern California Gas Company

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

Utilization Technology Development(11/30/-1 - 5/31/12)

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MODELING OF REGENERATIVE GAS GUARD RECUPERATOR

Sponsor: Utilization Technology Development

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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Energy Efficient Control Valve for Water Heating Appliances

Gas Technology Institute(2/01/10 - 7/31/12)

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Energy Efficient Control Valve for Water Heating Appliances

Sponsor: Gas Technology Institute

Start Date: 2/01/10

End Date: 7/31/12

Abstract

Components required for development of self-powered natural gas fired heating systems involve efficient micro systems for power generation and also reliable control elements with ultra-low average power consumption. The key elements identified during the preliminary analysis of the power consumption in water heater control systems are igniters and natural gas control valves. The low power ignition and control is of crucial importance for successful development and commercialization of self-powered water heating appliances. For practical heating applications, the ignition circuits are usually incorporated in control units with sensing, alarming, reporting and emergency shut-off features. The required energy minimization can be readily performed by the system manufactures. Fuel control and shut off valves can have high power consumption greatly affecting the power balance. Presently manufactured control valves include direct acting solenoid valves and magnetically latching valves. Both types can be optimized for power consumption. The research on the low electric power consumption control valve is proposed.

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Numerical Modeling and Development of Control Algorithms for Superadiabatic Reactors

US Dept. of Energy (DOE)(2/01/10 - 9/15/10)

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Numerical Modeling and Development of Control Algorithms for Superadiabatic Reactors

Sponsor: US Dept. of Energy (DOE)

Start Date: 2/01/10

End Date: 9/15/10

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 2009 the U.S. Department of Energy awarded a Phase I grant to Innovative Energy Solution, Inc. (IES) to study the feasibility of the Super ATR-max process. In this SBIR project, Innovative Energy Solution will build on the success of the SuperATR process and improve it. This improvement, which will result in the SuperATR-max process, will be based on three factors: (i) increase the reforming temperature through an improved firing sequence with the recycled H2S slip stream and (ii) decrease the oxygen use, in order to (iii) decrease the amount of amine, thereby costs.

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