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Hiroshi Tajima

Associate Professor

  • 92 Citations
  • 5 h-Index
1984 …2018
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Research Output 1984 2018

  • 92 Citations
  • 5 h-Index
  • 20 Article
  • 9 Paper
  • 5 Conference contribution
  • 3 Conference article
2018

Study on technical features of marine low-speed diesel engines

Tajima, H., Jan 1 2018, In : Toraibarojisuto/Journal of Japanese Society of Tribologists. 63, 6, p. 373-382 10 p.

Research output: Contribution to journal › Article

diesel engines
low speed
Diesel engines
engines
Engines
2017

Air entrainment and combustion process of high-pressure gas jet in gas direct injection engines

Thiripuvanam, T., Tajima, H. & Tsuru, D., Jan 1 2017.

Research output: Contribution to conference › Paper

Air entrainment
Direct injection
Engines
Gases
Gas engines
2014

Combustion Prediction of Marine Residual Oil of Low Ignitibility on Two-Component Fuel Model

Tajima, H. & Tsuru, D., Oct 13 2014, In : SAE Technical Papers. 2014-October

Research output: Contribution to journal › Conference article

Residual fuels
Fuel oils
Flammability
Oils
Computational fluid dynamics
2013
3 Citations (Scopus)

Reduction of methane slip from gas engines by O2 concentration control using gas permeation membrane

Tajima, H. & Tsuru, D., Jan 1 2013, In : SAE Technical Papers. 11

Research output: Contribution to journal › Conference article

Gas engines
Permeation
Methane
Membranes
Gases
5 Citations (Scopus)

Relation between tip penetration and droplet size of diesel spray

Komada, K., Sakaguchi, D., Tajima, H., Ueki, H. & Ishida, M., Jan 1 2013, In : SAE Technical Papers. 2

Research output: Contribution to journal › Conference article

Nozzles
Velocimeters
Position measurement
Lasers
Diesel fuels
2012

Analysis of PCCI combustion of light cycle oil reducing NOx emission from large marine engines

Tajima, H., Tsuru, D., Kawauchi, S. & Ishibashi, R., Dec 1 2012, p. 422-427. 6 p.

Research output: Contribution to conference › Paper

Marine engines
Combustion
Engine
Injection
Spray

Combustion and emission formation of gasoil and LCO (light cycle oil) water-in-fuel emulsions in nitrogen enriched air

Imhof, D., Aoyagi, H., Tajima, H. & Takasaki, K., 2012, Proceedings of the 8th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2012. p. 188-193 6 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Emulsion
Combustion
Nitrogen
Emulsions
Water
4 Citations (Scopus)

The abnormal combustion affected by lubricating oil ignition in premixed gas engine

Yasueda, S., Takasaki, K. & Tajima, H., Dec 1 2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, ICES 2012. p. 29-36 8 p. (Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gas engines
Lubricating oils
Ignition
Fuel oils
Engine cylinders
2010
2 Citations (Scopus)

Diesel combustion characteristics of saturated fatty acid methyl ester

Kinoshita, E., Myo, T., Ichiba, S., Zhang, R. & Tajima, H., Aug 1 2010, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 76, 768, p. 1318-1326 9 p.

Research output: Contribution to journal › Article

Saturated fatty acids
fatty acids
esters
Esters
fuel tests
2009
13 Citations (Scopus)

Multi-component modeling of evaporation, ignition and combustion processes of heavy residual fuel oil

Struckmeier, D., Tsuru, D., Kawauchi, S. & Tajima, H., Dec 1 2009.

Research output: Contribution to conference › Paper

Residual fuels
Fuel oils
Ignition
Evaporation
Combustion chambers
2008

Diesel combustion characteristics of palm oil butyl ester

Ueda, Y., Kinoshita, E., Tajima, H. & Hamasaki, K., Jun 2008, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 74, 6, p. 1451-1457 7 p.

Research output: Contribution to journal › Article

Palm oil
esters
Esters
oils
exhaust emission
5 Citations (Scopus)

Visualization of the PCCI combustion of Light Cycle Oil (LCO) in diesel engines

Struckmeier, D., Tsuru, D., Kawauchi, S., Osafune, S. & Tajima, H., 2008, Proceedings of the 7th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2008. p. 335-342 8 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Diesel Engine
Ignition
Combustion
Diesel engines
Visualization
2006
31 Citations (Scopus)

Diesel combustion characteristics of coconut oil and palm oil biodiesels

Kinoshita, E., Myo, T., Hamasaki, K., Tajima, H. & Kun, Z. R., Dec 1 2006.

Research output: Contribution to conference › Paper

Palm oil
Diesel fuels
Alternative fuels
Esters
Smoke

Modelling and measurement of high pressure sprays, Ignition and combustion of Heavy Fuel Oil and Marine Diesel Oil

Goldsworthy, L., Tajima, H. & Bong, C., Dec 1 2006.

Research output: Contribution to conference › Paper

Fuel Oils
Residual fuels
Fuel oils
Ignition
Oils

The effect of direct water injection on unsteady fuel spray combustion

Tajima, H., Takasaki, K., Takaishi, T. & Murakami, S., Dec 1 2006.

Research output: Contribution to conference › Paper

Water injection
Soot
Fuel injection
Combustion chambers
Water
2005
6 Citations (Scopus)

Diesel combustion characteristics of single compositions of fatty acid methyl esters

Myo, T., Hamasaki, K., Kinoshita, E. & Tajima, H., 2005, SAE Technical Papers.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Fatty acids
Esters
Chemical analysis
Smoke
Carbon
2004
3 Citations (Scopus)

Effects of water droplet size and crude glycerin content as an emulsifier on diesel combustion with emulsified biodiesel

Hamasaki, K., Kinoshita, E., Jaqin, C. & Tajima, H., Jan 1 2004, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 70, 699, p. 2907-2913 7 p.

Research output: Contribution to journal › Article

Biodiesel
Glycerol
water
ignition
Water
2003

Visual study focused on the Combustion problem in Gasoline Direct Injection engine

Tajima, H., Nakashima, M., Sawada, M. & Aoyama, M., Sep 16 2003.

Research output: Contribution to conference › Paper

Direct injection
Gasoline
Engines
Drawing (graphics)
Visualization
2002

Verbrennung: Verbrennungsprobleme beim einsatz minderwertiger schweröle in schiffsdieselmotoren

Tagasaki, K., Tajima, H., Nakashima, M. & Ishida, H., Jan 1 2002, MTZ Motortechnische Zeitschrift, 63, 6 1 p.

Research output: Contribution to specialist publication › Article

2001
5 Citations (Scopus)

Combustion of used lubricating oil in a diesel engine

Tajima, H., Takasaki, K., Nakashima, M., Yanagi, J., Takaishi, T., Ishida, H., Osafune, S. & Iwamoto, K., Dec 1 2001.

Research output: Contribution to conference › Paper

Lubricating oils
Diesel engines
Engines
Fuel oils
Residual fuels
10 Citations (Scopus)

Utilization of waste vegetable oil methyl ester for diesel fuel

Hamasaki, K., Tajima, H., Takasaki, K., Satohira, K., Enomoto, M. & Egawa, H., Dec 1 2001.

Research output: Contribution to conference › Paper

Vegetable oils
Diesel fuels
Esters
Engines
Water pollution
2000
1 Citation (Scopus)

Verbrennungseigenschaften von Dumbbell-Schweröl

Takasaki, K., Takaishi, T., Matsubara, M., Maeda, K., Tajima, H., Nakashima, M. & Ishida, H., Mar 1 2000, MTZ Motortechnische Zeitschrift, 61, 3, p. 174-175 2 p.

Research output: Contribution to specialist publication › Article

1997

Experimental study of heat transfer coefficient in a spark ignition engine (2nd Report, Examination of arrangement of heat transfer coefficient under motored conditions)

Tasaka, H. & Tajima, H., Jan 1 1997, In : Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 63, 610, p. 2228-2232 5 p.

Research output: Contribution to journal › Article

spark ignition
heat transfer coefficients
Internal combustion engines
Heat transfer coefficients
engines
1996

Experimental study of heat transfer coefficient in a spark ignition engine (1st report, relation between gas velocity and heat transfer coefficient under motored conditions)

Tasaka, H. & Tajima, H., Jan 1 1996, In : Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 62, 599, p. 2902-2906 5 p.

Research output: Contribution to journal › Article

spark ignition
heat transfer coefficients
Internal combustion engines
Heat transfer coefficients
engines
1993

Prediction of Swirl Velocity of In-Cylinder Flow of an Engine by a Simplified Simulation Model (4th Report, Evaluation of Valve Timing)

Tasaka, H., Tajima, H. & Nagase, Y., Jan 1 1993, In : Transactions of the Japan Society of Mechanical Engineers Series B. 59, 562, p. 2090-2093 4 p.

Research output: Contribution to journal › Article

Engine cylinders
engines
volumetric efficiency
time measurement
Engines
1990

System of Measuring the Flame Propagation of a Spark Ignition Engine by High-speed Photographs Using PLZT Shutter

Tasaka, H., Nitawaki, K. & Tajima, H., 1990, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 56, 524, p. 1194-1198 5 p.

Research output: Contribution to journal › Article

Camera shutters
spark ignition
shutters
flame propagation
Internal combustion engines
1989

LDV measurements of axial distributions of in-cylinder gas velocities

Kido, H., Tajima, H. & Matsumoto, A., Feb 1 1989, In : JSME International Journal, Series B: Fluids and Thermal Engineering. 32, 1, p. 78-84 7 p.

Research output: Contribution to journal › Article

Gas cylinders
Angular momentum
Combustion chambers
strokes
Velocity measurement

LDV measurements of axial distributions of in-cylinder gas velocities

Kido, H., Tajima, H. & Matsumoto, A., 1989, In : JSME International Journal, Series 2: Fluids Engineering, Heat Transfer, Power, Combustion, Thermophysical Properties. 32, 1 , Feb., 1989, p. 78-84 7 p.

Research output: Contribution to journal › Article

Gas cylinders
Laser Doppler velocimeters
Angular momentum
Combustion chambers
Axial compression

LDV Measurements of Axial Distributions of In-Cylinder Gas Velocities: (A Case of an Engine with a Bowl-in Type Piston)

Kido, H., Tajima, H. & Fujita, K., Jan 1 1989, In : Transactions of the Japan Society of Mechanical Engineers Series B. 55, 512, p. 1263-1269 7 p.

Research output: Contribution to journal › Article

Gas cylinders
pistons
Pistons
Velocity measurement
engines
3 Citations (Scopus)

Modification of the K-ε turbulence model for in-cylinder gas flow

Kido, H., Nakashima, K., Tajima, H. & Kitagawa, T., Feb 1 1989, In : JSME International Journal, Series B: Fluids and Thermal Engineering. 32, 1, p. 85-90 6 p.

Research output: Contribution to journal › Article

turbulence models
Turbulence models
gas flow
Flow of gases
Turbulence
1988

LDV Measurements of Axial Distributions of In-Cylinder Gas Velocities

Kido, H., Tajima, H. & Matsumoto, A., Jan 1 1988, In : Transactions of the Japan Society of Mechanical Engineers Series B. 54, 499, p. 754-760 7 p.

Research output: Contribution to journal › Article

Gas cylinders
strokes
Velocity distribution
Angular momentum
Flow structure

Studies on Direct-Injection Stratified-Charge Combustion in a Constant Volume Bomb (Effects of Local Premixing by Radial Fuel Injection)

Kido, H., Nakashima, K., Tajima, H., Kitagawa, T. & Huang, S., Jan 1 1988, In : Transactions of the Japan Society of Mechanical Engineers Series B. 54, 506, p. 2949-2954 6 p.

Research output: Contribution to journal › Article

premixing
fuel injection
Fuel injection
Direct injection
Hydrocarbons
1987
1 Citation (Scopus)

A modified K-ɛ. Turbulence model for in-cylinder gas flow

Kido, H., Nakashima, K., Tajima, H. & Kitagawa, T., Jan 1 1987, In : Transactions of the Japan Society of Mechanical Engineers Series B. 53, 492, p. 2648-2653 6 p.

Research output: Contribution to journal › Article

turbulence models
Turbulence models
gas flow
Flow of gases
Turbulence

LDV MEASUREMENTS OF SWIRL FLOW IN AN UNI-FLOW TYPED ENGINE.

Kido, H., Tajima, H. & Matsumoto, A., 1987, Unknown Host Publication Title. ASME, Vol. 5. p. 247-254 8 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Velocity measurement
Engine cylinders
Engines
Lasers
Angular momentum
1985

An Experimental Study on the Fuel Spray Distribution and Combustion Characteristics in a Diesel Engine with Side-Injection System

Wakuri, Y., Ono, S., Takasaki, K. & Tajima, H., Jan 1 1985, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 51, 463, p. 1099-1104 6 p.

Research output: Contribution to journal › Article

fuel sprays
diesel engines
Diesel engines
combustion chambers
Combustion chambers

EXPERIMENTAL STUDY ON THE FUEL SPRAY DISTRIBUTION AND COMBUSTION CHARACTERISTICS IN A DIESEL ENGINE WITH SIDE-INJECTION SYSTEM.

Wakuri, Y., Ono, S., Takasaki, K., Tajima, H. & Yang, Y., Mar 1985, In : Memoirs of the Faculty of Engineering, Kyushu University. 45, 1, p. 61-78 18 p.

Research output: Contribution to journal › Article

diesel engine
spray
Diesel engines
experimental study
combustion
1984

EXPERIMENTAL STUDY ON THE FUEL SPRAY DISTRIBUTION AND COMBUSTION CHARACTERISTICS IN A DIRECT-INJECTION DIESEL ENGINE.

Wakuri, Y., Ono, S., Takasaki, K. & Tajima, H., Sep 1 1984, In : Memoirs of the Kyushu University, Faculty of Engineering. 44, 3, p. 329-347 19 p.

Research output: Contribution to journal › Article

Direct injection
diesel engine
Combustion chambers
spray
Diesel engines