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Research Output 2001 2019

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2019

Detection Improvement of Unburned Carbon Content in Fly Ash Flow Using LIBS with a Two-Stage Cyclone Measurement System

Wang, Z., Liu, R., Deguchi, Y., Tanaka, S., Tainaka, K., Tanno, K., Watanabe, H., Yan, J. & Liu, J., Aug 15 2019, In : Energy and Fuels. 33, 8, p. 7805-7812 8 p.

Research output: Contribution to journalArticle

Electromagnetic wave attenuation
Boiler control
Coal Ash
Atomic emission spectroscopy
Laser induced breakdown spectroscopy
Coal combustion
Fuel burners
Turbulent flow
Reaction rates
Computational fluid dynamics

Experimental and numerical analysis of turbulent pulverized coal flame in a coaxial burner

Ahn, S., Tainaka, K., Watanabe, H. & Kitagawa, T., Jul 15 2019, In : Energy. 179, p. 727-735 9 p.

Research output: Contribution to journalArticle

Fuel burners
Numerical analysis
Coal
Momentum transfer
Coal combustion

Flamelet Model for a Three-Feed Non-premixed Combustion System with a Diluent Stream: Analysis and Validation of Quasi-Two-Dimensional Flamelet (Q2DF) Models

Yu, P., Watanabe, H., Zhang, W., Kurose, R. & Kitagawa, T., May 16 2019, In : Energy and Fuels. 33, 5, p. 4640-4650 11 p.

Research output: Contribution to journalArticle

Direct numerical simulation
Temperature
Coal
Polycyclic Aromatic Hydrocarbons
Large eddy simulation
Polycyclic aromatic hydrocarbons
Anthracene

Prediction of soot formation characteristics in a pulverized-coal combustion field by large eddy simulations with the TDP model

Takahashi, H., Hashimoto, N., Watanabe, H., Kurose, R. & Fujita, O., Jan 1 2019, In : Proceedings of the Combustion Institute. 37, 3, p. 2883-2891 9 p.

Research output: Contribution to journalArticle

Soot
Coal combustion
Large eddy simulation
soot
large eddy simulation
1 Citation (Scopus)

Simultaneous imaging of Mie scattering, PAHs laser induced fluorescence and soot laser induced incandescence to a lab-scale turbulent jet pulverized coal flame

Hayashi, J., Hashimoto, N., Nakatsuka, N., Tainaka, K., Tsuji, H., Tanno, K., Watanabe, H., Makino, H. & Akamatsu, F., Jan 1 2019, In : Proceedings of the Combustion Institute. 37, 3, p. 3045-3052 8 p.

Research output: Contribution to journalArticle

incandescence
Soot
turbulent jets
Coal
Polycyclic Aromatic Hydrocarbons
1 Citation (Scopus)

Unburned carbon measurement in fly ash using laser-induced breakdown spectroscopy with short nanosecond pulse width laser

Liu, R., Deguchi, Y., Nan, W., Hu, R., Wang, Z., Fujita, Y., Tanaka, S., Tainaka, K., Tanno, K., Watanabe, H., Liu, J. & Yan, J., Jan 1 2019, In : Advanced Powder Technology.

Research output: Contribution to journalArticle

Coal Ash
Laser induced breakdown spectroscopy
Fly ash
Laser pulses
Carbon
2018
3 Citations (Scopus)

Experimental and numerical investigation of effects of particle shape and size distribution on particles’ dispersion in a coaxial jet flow

Zhang, W., Tainaka, K., Ahn, S., Watanabe, H. & Kitagawa, T., Oct 1 2018, In : Advanced Powder Technology. 29, 10, p. 2322-2330 9 p.

Research output: Contribution to journalArticle

Coal
Velocity measurement
Polymers
Turbulence
Experiments

Lesと拡張 CPD モデルを用いた高炉羽口部の微粉炭燃焼挙動の予測

Translated title of the contribution: Prediction of pulverized coal combustion behavior around tuyere by using LES and extended CPD modelKawashima, T., Murao, A., Yamamoto, N., Ando, M., Okada, J. & Watanabe, H., Dec 1 2018, In : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 104, 12, p. 766-775 10 p.

Research output: Contribution to journalArticle

Open Access
Coal
Coal combustion
coal
predictions
Large eddy simulation
1 Citation (Scopus)

Numerical investigation of effects of particle shape on dispersion in an isotropic turbulent flow

Zhang, W., Watanabe, H. & Kitagawa, T., Sep 1 2018, In : Advanced Powder Technology. 29, 9, p. 2048-2060 13 p.

Research output: Contribution to journalArticle

Turbulent flow
Gases
Fluids
Flammability
Direct numerical simulation

Optical diagnostics for pulverized coal jet flame

Hayashi, J., Akamatsu, F., Nakatsuka, N., Hashimoto, N., Watanabe, H., Kurose, R., Tainaka, K., Tsuji, H. & Makino, H., Jan 1 2018, In : Journal of the Society of Powder Technology, Japan. 55, 3, p. 138-146 9 p.

Research output: Contribution to journalArticle

Coal
Lasers
3 Citations (Scopus)

Prediction of hot coke oven gas reforming by LES coupled with the extended flamelet/progress variable approach

Yu, P., Norinaga, K., Watanabe, H. & Kitagawa, T., Nov 1 2018, In : Fuel. 231, p. 234-243 10 p.

Research output: Contribution to journalArticle

Coke ovens
Large eddy simulation
Reforming reactions
Gases
Polycyclic Aromatic Hydrocarbons
2017
5 Citations (Scopus)

Direct numerical simulation of ignition of a single particle freely moving in a uniform flow

Zhang, W., Watanabe, H. & Kitagawa, T., Nov 1 2017, In : Advanced Powder Technology. 28, 11, p. 2893-2902 10 p.

Research output: Contribution to journalArticle

Direct numerical simulation
Ignition
Gases
Experiments
Methane
6 Citations (Scopus)

Effect of different fuel NO models on the prediction of NO formation/reduction characteristics in a pulverized coal combustion field

Hashimoto, N., Watanabe, H., Kurose, R. & Shirai, H., Jan 1 2017, In : Energy. 118, p. 47-59 13 p.

Research output: Contribution to journalArticle

Coal combustion
Bituminous coal
Furnaces
Moisture
Oxygen
8 Citations (Scopus)

Extension of the chemical percolation devolatilization model for predicting formation of tar compounds as soot precursor in coal gasification

Umemoto, S., Kajitani, S., Miura, K., Watanabe, H. & Kawase, M., Jan 1 2017, In : Fuel Processing Technology. 159, p. 256-265 10 p.

Research output: Contribution to journalArticle

Soot
Tars
Coal gasification
Tar
Coal
13 Citations (Scopus)

Numerical analysis of particle dispersion and combustion characteristics on a piloted coaxial pulverized coal jet flame

Ahn, S., Tanno, K. & Watanabe, H., Jan 1 2017, In : Applied Thermal Engineering. 124, p. 1194-1202 9 p.

Research output: Contribution to journalArticle

Numerical analysis
Coal
Gases
Momentum transfer
Stream flow
10 Citations (Scopus)

Numerical investigation of effects of CO2recirculation in an oxy-fuel IGCC on gasification characteristics of a two-stage entrained flow coal gasifier

Watanabe, H., Ahn, S. & Tanno, K., Jan 1 2017, In : Energy. 118, p. 181-189 9 p.

Research output: Contribution to journalArticle

Gasification
Coal
Fuel systems
Air
Conversion efficiency
2016
1 Citation (Scopus)

Improved Measurement Characteristics of Elemental Compositions Using LaserInduced Breakdown Spectroscopy

Wang, Z., Deguchi, Y., Katsumori, S., Ikutomo, A., Yan, J., Liu, J., Tainaka, K., Tanno, K., Watanabe, H. & Kurose, R., Jan 1 2016, In : Spectroscopy (Santa Monica). 31, 1, p. 22-35 14 p.

Research output: Contribution to journalArticle

Coal Ash
Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
gas spectroscopy
breakdown
17 Citations (Scopus)
Coal
Coal combustion
Numerical analysis
Furnaces
Heat transfer
2 Citations (Scopus)

Numerical investigation of reaction kinetics of coal volatiles with a detailed chemistry and its simplification

Ahn, S., Watanabe, H., Shoji, T. & Umemoto, S., May 26 2016, In : Journal of Thermal Science and Technology. 11, 1, JTST0014.

Research output: Contribution to journalArticle

Coal
Hydrocarbons
simplification
Reaction kinetics
coal
5 Citations (Scopus)

Primary soot particle distributions in a combustion field of 4 kw pulverized coal jet burner measured by time resolved laser induced incandescence (TiRe-LII)

Hashimoto, N., Hayashi, J., Nakatsuka, N., Tainaka, K., Umemoto, S., Tsuji, H., Akamatsu, F., Watanabe, H. & Makino, H., Jan 1 2016, In : Journal of Thermal Science and Technology. 11, 3, JTST0049.

Research output: Contribution to journalArticle

incandescence
Soot
Coal
burners
soot
2015
9 Citations (Scopus)

A CFD study on the reacting flow of partially combusting hot coke oven gas in a bench-scale reformer

Li, C., Appari, S., Tanaka, R., Hanao, K., Lee, Y., Kudo, S., Jun-Ichiro, H., Janardhanan, V. M., Watanabe, H. & Norinaga, K., Jul 21 2015, In : Fuel. 159, p. 590-598 9 p., 9428.

Research output: Contribution to journalArticle

Coke ovens
Computational fluid dynamics
Gases
Kinetics
Carbon Monoxide
4 Citations (Scopus)

Effects of parcel modeling on particle dispersion and interphase transfers in a turbulent mixing layer

Watanabe, H., Uesugi, D. & Muto, M., Nov 1 2015, In : Advanced Powder Technology. 26, 6, p. 1719-1728 10 p.

Research output: Contribution to journalArticle

Momentum transfer
Mass transfer
Direct numerical simulation
Particle size analysis
45 Citations (Scopus)

Large-eddy simulation of pulverized coal jet flame - Effect of oxygen concentration on NOx formation

Muto, M., Watanabe, H., Kurose, R., Komori, S., Balusamy, S. & Hochgreb, S., Feb 15 2015, In : Fuel. 142, p. 152-163 12 p.

Research output: Contribution to journalArticle

Coal
Large eddy simulation
Oxygen
Oxidation
Gases
18 Citations (Scopus)

Modeling and simulation of coal gasification on an entrained flow coal gasifier with a recycled CO2 injection

Watanabe, H., Tanno, K., Umetsu, H. & Umemoto, S., Feb 15 2015, In : Fuel. 142, p. 250-259 10 p.

Research output: Contribution to journalArticle

Coal
Coal gasification
Gasification
Gases
Water gas shift
11 Citations (Scopus)
Coke ovens
Carbon Monoxide
Gases
oxidation
Oxidation
2014
6 Citations (Scopus)

Analysis and modeling of char particle combustion with heat and multicomponent mass transfer

Umetsu, H., Watanabe, H., Kajitani, S. & Umemoto, S., Jan 1 2014, In : Combustion and Flame. 161, 8, p. 2177-2191 15 p.

Research output: Contribution to journalArticle

mass transfer
Mass transfer
heat
Boundary conditions
Maxwell equations
18 Citations (Scopus)

Applications of laser diagnostics to thermal power plants and engines

Deguchi, Y., Kamimoto, T., Wang, Z. Z., Yan, J. J., Liu, J. P., Watanabe, H. & Kurose, R., Dec 22 2014, In : Applied Thermal Engineering. 73, 2, p. 1453-1464 12 p.

Research output: Contribution to journalArticle

Laser diagnostics
Laser induced breakdown spectroscopy
Exhaust systems (engine)
Power plants
Engines
10 Citations (Scopus)

Effects of ambient pressure and precursors on soot formation in spray flames

Watanabe, H., Kurose, R., Hayashi, M., Kitano, T. & Komori, S., Jan 1 2014, In : Advanced Powder Technology. 25, 4, p. 1376-1387 12 p.

Research output: Contribution to journalArticle

Soot
Acetylene
Polycyclic Aromatic Hydrocarbons
Polycyclic aromatic hydrocarbons
Liquid fuels
39 Citations (Scopus)

Large-eddy simulation of an inclined round jet issuing into a crossflow

Sakai, E., Takahashi, T. & Watanabe, H., Jan 1 2014, In : International Journal of Heat and Mass Transfer. 69, p. 300-311 12 p.

Research output: Contribution to journalArticle

Large eddy simulation
large eddy simulation
Vortex flow
vortices
horseshoe vortices
2013
28 Citations (Scopus)

Large-eddy simulation of turbulent spray combustion in a subscale aircraft jet engine combustor-predictions of no and soot concentrations

Moriai, H., Kurose, R., Watanabe, H., Yano, Y., Akamatsu, F. & Komori, S., Aug 14 2013, In : Journal of Engineering for Gas Turbines and Power. 135, 9, 091503.

Research output: Contribution to journalArticle

Jet engines
Large eddy simulation
Soot
Combustors
Aircraft
30 Citations (Scopus)

Quantitative elemental detection of size-segregated particles using laser-induced breakdown spectroscopy

Wang, Z. Z., Deguchi, Y., Kuwahara, M., Taira, T., Zhang, X. B., Yan, J. J., Liu, J. P., Watanabe, H. & Kurose, R., Sep 1 2013, In : Spectrochimica Acta - Part B Atomic Spectroscopy. 87, p. 130-138 9 p.

Research output: Contribution to journalArticle

Coal Ash
Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
Coal combustion
Particle size
32 Citations (Scopus)

Soot formation characteristics in a lab-scale turbulent pulverized coal flame with simultaneous planar measurements of laser induced incandescence of soot and Mie scattering of pulverized coal

Hayashi, J., Hashimoto, N., Nakatsuka, N., Tsuji, H., Watanabe, H., Makino, H. & Akamatsu, F., Jan 11 2013, In : Proceedings of the Combustion Institute. 34, 2, p. 2435-2443 9 p.

Research output: Contribution to journalArticle

incandescence
Soot
Coal
Mie scattering
soot
39 Citations (Scopus)

Two-dimensional direct numerical simulation of spray flames - Part 1: Effects of equivalence ratio, fuel droplet size and radiation, and validity of flamelet model

Fujita, A., Watanabe, H., Kurose, R. & Komori, S., Feb 1 2013, In : Fuel. 104, p. 515-525 11 p.

Research output: Contribution to journalArticle

Direct numerical simulation
Radiation
Heat transfer
Fluids
Radiation effects
2012

Large eddy simulation of inclined round jet issuing into cross-flow

Sakai, E., Takahashi, T. & Watanabe, H., Jun 15 2012, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 78, 789, p. 1107-1117 11 p.

Research output: Contribution to journalArticle

cross flow
Large eddy simulation
large eddy simulation
Vortex flow
horseshoe vortices

Time-resolved laser induced incandescence measurement for a combustion field of the 0.5 kg-coal/h pulverized coal jet burner

Hayashi, J., Hashimoto, N., Nakatsuka, N., Tsuji, H., Watanabe, H., Makino, H. & Akamatsu, F., 2012, In : CEUR Workshop Proceedings. 865

Research output: Contribution to journalArticle

Fuel burners
Coal
Lasers
2011
28 Citations (Scopus)

Development of oxy-fuel IGCC system with CO2 recirculation for CO2 capture

Oki, Y., Inumaru, J., Hara, S., Kobayashi, M., Watanabe, H., Umemoto, S. & Makino, H., Jan 1 2011, In : Energy Procedia. 4, p. 1066-1073 8 p.

Research output: Contribution to journalArticle

Fuel systems
Fossil fuels
Gasification
Steam
Coal
35 Citations (Scopus)

Effects of fuel droplet size on soot formation in spray flames formed in a laminar counterflow

Hayashi, J., Watanabe, H., Kurose, R. & Akamatsu, F., Dec 1 2011, In : Combustion and Flame. 158, 12, p. 2559-2568 10 p.

Research output: Contribution to journalArticle

Soot
counterflow
soot
sprayers
flames
2009
1 Citation (Scopus)

Inception criteria for entrainment of molten slag droplet in an entrained flow coal gasifier

Inumaru, J., Watanabe, H., Ohtaka, M., Ashizawa, M. & Ichikawa, K., Jan 1 2009, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 75, 756, p. 1576-1583 8 p.

Research output: Contribution to journalArticle

dynamic pressure
Gas dynamics
slags
gas dynamics
entrainment
53 Citations (Scopus)

Numerical simulations of pulverized coal combustion

Kurose, R., Watanabe, H. & Makino, H., Jan 1 2009, In : KONA Powder and Particle Journal. 27, p. 144-156 13 p.

Research output: Contribution to journalArticle

Coal
Coal combustion
Ashes
Computer simulation
Computational fluid dynamics

Study of decision index for ignition timing of slag melting burner

Murata, H., Nakajima, C. & Watanabe, H., 2009, In : IEEJ Transactions on Electronics, Information and Systems. 129, 5

Research output: Contribution to journalArticle

Fuel burners
Slags
Ignition
Melting
Molten materials
2008

Effect of radiation on a spray jet flame

Watanabe, H., Baba, Y., Kurose, R. & Komori, S., Aug 1 2008, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 74, 8, p. 1827-1834 8 p.

Research output: Contribution to journalArticle

sprayers
Radiation
radiation
formulations
flames
52 Citations (Scopus)

Effects of radiation on spray flame characteristics and soot formation

Watanabe, H., Kurose, R., Komori, S. & Pitsch, H., Jan 1 2008, In : Combustion and Flame. 152, 1-2, p. 2-13 12 p.

Research output: Contribution to journalArticle

Soot
soot
sprayers
flames
Radiation
1 Citation (Scopus)

Modeling of morphology of char during coal gasification

Kajitani, S., Watanabe, H., Zhang, Y., Hara, S. & Miura, K., Jan 1 2008, In : Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy. 87, 1, p. 48-55 8 p.

Research output: Contribution to journalArticle

Coal gasification
Gasification
Coal
Pyrolysis
Particle size analysis
1 Citation (Scopus)

Study on droplet entrainment of high-viscosity falling liquid film

Inumaru, J., Ohtaka, M. & Watanabe, H., Nov 2008, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 74, 11, p. 2279-2286 8 p.

Research output: Contribution to journalArticle

Liquid films
entrainment
falling
Viscosity
viscosity
2 Citations (Scopus)

Study on soot formation in spray flames (effect of droplet size distribution)

Hayashi, J., Akamatsu, F., Ahn, C., Seo, T., Watanabe, H. & Kurose, R., Feb 2008, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 74, 2, p. 429-437 9 p.

Research output: Contribution to journalArticle

soot
Soot
sprayers
flames
fuel sprays
2007
1 Citation (Scopus)

A numerical simulation of soot formation in spray flames

Watanabe, H., Kurose, R., Komori, S. & Pitsch, H., Jul 1 2007, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 73, 7, p. 1570-1577 8 p.

Research output: Contribution to journalArticle

soot
Soot
sprayers
flames
Computer simulation
78 Citations (Scopus)

Characteristics of flamelets in spray flames formed in a laminar counterflow

Watanabe, H., Kurose, R., Hwang, S. M. & Akamatsu, F., Mar 1 2007, In : Combustion and Flame. 148, 4, p. 234-248 15 p.

Research output: Contribution to journalArticle

counterflow
sprayers
flames
Strain rate
dissipation
1 Citation (Scopus)

Development of operation support system for coal gasifier

Tokoro, K. I., Watanabe, H., Watanabe, I. & Hara, S., Jan 1 2007, In : IEEJ Transactions on Electronics, Information and Systems. 127, 7

Research output: Contribution to journalArticle

Coal
Gasification
Calorific value
Combustors
Availability