• 1593 Citations
  • 22 h-Index
19952019

Research output per year

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Research Output

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Conference article
2019

Attainment of High Thermal Efficiency and Near-zero Emissions by Optimizing Injected Spray Configuration in Direct Injection Hydrogen Engines

Oikawa, M., Takagi, Y., Mihara, Y., Kawahara, N., Tomita, E. & Naitoh, K., Dec 19 2019, In : SAE Technical Papers. December

Research output: Contribution to journalConference article

Plasma Temperature of Spark Discharge in a Lean-burn Spark-ignition Engine Using a Time Series of Spectra Measurements

Kawahara, N., Watanabe, M., Tomita, E., Nagano, Y. & Kitagawa, T., Dec 19 2019, In : SAE Technical Papers. December

Research output: Contribution to journalConference article

2018

Numerical Investigation of Natural Gas-Diesel Dual Fuel Engine with End Gas Ignition

Talekar, A., Lai, M. C., Tomita, E., Kawahara, N., Zeng, K. & Yang, B., 2018, In : SAE Technical Papers. 2018-April

Research output: Contribution to journalConference article

3 Citations (Scopus)
2013

Mixing process of direct injection hydrogen jet in a constant volume vessel by using spark-induced breakdown spectroscopy

Bin Abdul Rahman, M. T., Kawahara, N. & Tomita, E., Jan 1 2013, In : SAE Technical Papers. 11

Research output: Contribution to journalConference article

2 Citations (Scopus)
2009

Effect of EGR on combustion and exhaust emissions in supercharged dual-fuel natural gas engine ignited with diesel fuel

Tomita, E., Harada, Y., Kawahara, N. & Sakane, A., Jan 1 2009, In : SAE Technical Papers.

Research output: Contribution to journalConference article

18 Citations (Scopus)

Effect of fuel injection parameters on engine performance and emissions of a supercharged producer gas-diesel dual fuel engine

Roy, M. M., Tomita, E., Kawahara, N., Harada, Y. & Sakane, A., Jan 1 2009, In : SAE Technical Papers.

Research output: Contribution to journalConference article

6 Citations (Scopus)

Mixture formation process in a spark-ignition engine with ethanol blended gasoline

Kawahara, N., Tomita, E. & Kadowaki, T., Jan 1 2009, In : SAE Technical Papers.

Research output: Contribution to journalConference article

3 Citations (Scopus)
5 Citations (Scopus)
2007

Auto-ignited kernels during knocking combustion in a spark-ignition engine

Kawahara, N., Tomita, E. & Sakata, Y., Sep 24 2007, In : Proceedings of the Combustion Institute. 31 II, p. 2999-3006 8 p.

Research output: Contribution to journalConference article

83 Citations (Scopus)

Cycle-resolved measurements of the fuel concentration near a spark plug in a rotary engine using an in situ laser absorption method

Kawahara, N., Tomita, E., Hayashi, K., Tabata, M., Iwai, K. & Kagawa, R., Sep 24 2007, In : Proceedings of the Combustion Institute. 31 II, p. 3033-3040 8 p.

Research output: Contribution to journalConference article

36 Citations (Scopus)

Gas temperature measurement in a DME-HCCI engine using heterodyne interferometry with spark-plug-in fiber-optic sensor

Lee, C., Kawahara, N., Tomita, E. & Inoshita, K., Jan 1 2007, In : SAE Technical Papers.

Research output: Contribution to journalConference article

4 Citations (Scopus)
2006
5 Citations (Scopus)
2005

In-situ unburned gas temperature measurement in a spark ignition engine using laser interferometry

Kawahara, N., Tomita, E., Ohnishi, K. & Goto, K., Jan 1 2005, In : SAE Technical Papers.

Research output: Contribution to journalConference article

5 Citations (Scopus)

In-spark-plug sensor for analyzing the initial flame and its structure in an SI engine

Ikeda, Y., Nishiyama, A., Kawahara, N., Tomita, E., Arimoto, S. & Takeuchi, A., Jan 1 2005, In : SAE Technical Papers.

Research output: Contribution to journalConference article

8 Citations (Scopus)

Measurement of flame propagation characteristics in an SI engine using micro-local chemiluminescence technique

Kawahara, N., Tomita, E., Takeuchi, A., Arimoto, S., Ikeda, Y. & Nishiyama, A., Jan 1 2005, In : SAE Technical Papers.

Research output: Contribution to journalConference article

12 Citations (Scopus)
2003
8 Citations (Scopus)
9 Citations (Scopus)

Transient temperature measurement of unburned gas in an engine cylinder using laser interferometry with a fiber-optic sensor

Kawahara, N., Tomita, E., Ichimiya, M., Takasu, K., Tsuchida, N. & Goto, K., Jan 1 2003, In : SAE Technical Papers.

Research output: Contribution to journalConference article

2 Citations (Scopus)
2002
23 Citations (Scopus)

In situ fuel concentration measurement near spark plug in spark-ignition engines by 3.39 μm infrared laser absorption method

Tomita, E., Kawahara, N., Yoshiyama, S., Kakuho, A., Itoh, T. & Hamamoto, Y., Jan 1 2002, In : Proceedings of the Combustion Institute. 29, 1, p. 735-741 7 p.

Research output: Contribution to journalConference article

23 Citations (Scopus)
2001

Hydrogen combustion and exhaust emissions ignited with diesel oil in a dual fuel engine

Tomita, E., Kawahara, N., Piao, Z., Fujita, S. & Hamamoto, Y., Jan 1 2001, In : SAE Technical Papers.

Research output: Contribution to journalConference article

53 Citations (Scopus)

Transient temperature measurement of gas using fiber optic heterodyne interferometry

Kawahara, N., Tomita, E. & Kamakura, H., Jan 1 2001, In : SAE Technical Papers.

Research output: Contribution to journalConference article

2 Citations (Scopus)