Personal information

Biography

National institute of maritime, port and aviation technology, Tokyo, Japan.
(http://www.mpat.go.jp/index_e.html)
Head of power and energy system research and development group 4/2023 to Present.
Chief researcher 10/2015 to 3/2023
Researcher 4/2008 to 9/2015.

・Doctor of Engineering, Tokyo University of Marine Science and Technology, (2013).
・Master of Engineering, Tokyo University of Marine Science and Technology, (2008).
・Research staff with more than 14 years of experience about marine diesel engine.
・Large bore 4-stroke diesel engine development experience in YANMAR CO., LTD. (2014/10-2015/9).
・Visiting researcher of Sandia National Laboratories Engine Combustion Research (2018/10-2019/9).

Activities

Works (17)

Performance evaluation of methane oxidation catalyst for marine gas-engine in actual exhaust and simulated gas

International Journal of Engine Research
2024-04 | Journal article
Contributors: Yoshifuru Nitta; Yasuhisa Ichikawa; Yoichi Niki; Akiko Masuda; Koichi Hirata
Source: check_circle
Crossref

Experimental and numerical analysis of unburned ammonia and nitrous oxide emission characteristics in ammonia/diesel dual-fuel engine

International Journal of Engine Research
2023-09 | Journal article
Contributors: Yoichi Niki
Source: check_circle
Crossref

Experimental Study of Combustion Process of NH3 Stratified Spray Using Imaging Methods for NH3 Fueled Large Two-Stroke Marine Engine

SSRN
2022 | Other
EID:

2-s2.0-85140944313

Part of ISSN: 15565068
Contributors: Ichikawa, Y.; Niki, Y.; Takasaki, K.; Kobayashi, H.; Miyanagi, A.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

NH<sub>3</sub> combustion using three-layer stratified fuel injection for a large two-stroke marine engine: Experimental verification of the concept

Applications in Energy and Combustion Science
2022 | Journal article
EID:

2-s2.0-85131205612

Part of ISSN: 2666352X
Contributors: Ichikawa, Y.; Niki, Y.; Takasaki, K.; Kobayashi, H.; Miyanagi, A.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Verification of diesel spray ignition phenomenon in dual-fuel diesel-piloted premixed natural gas engine

International Journal of Engine Research
2022 | Journal article
EID:

2-s2.0-85098657363

Part of ISSN: 20413149 14680874
Contributors: Niki, Y.; Rajasegar, R.; Li, Z.; Musculus, M.P.B.; Garcia Oliver, J.M.; Takasaki, K.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier
grade
Preferred source (of 2)‎

An experimental and one-dimensional modeling analysis of turbulent gas ejection in pre-chamber engines

Fuel
2021 | Journal article
EID:

2-s2.0-85105108551

Part of ISSN: 00162361
Contributors: García-Oliver, J.M.; Niki, Y.; Rajasegar, R.; Novella, R.; Gomez-Soriano, J.; Martínez-Hernándiz, P.J.; Li, Z.; Musculus, M.P.B.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Experimental investigation of effects of split diesel-pilot injection on emissions from ammonia-diesel dual fuel engine

Proceedings of ASME 2021 Internal Combustion Engine Division Fall Technical Conference, ICEF 2021
2021 | Conference paper
EID:

2-s2.0-85120616940

Contributors: Niki, Y.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Fundamental insights on ignition and combustion of natural gas in an active fueled pre-chamber spark-ignition system

Combustion and Flame
2021 | Journal article
EID:

2-s2.0-85109146760

Part of ISSN: 15562921 00102180
Contributors: Rajasegar, R.; Niki, Y.; García-Oliver, J.M.; Li, Z.; Musculus, M.P.B.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Influence of pilot-fuel mixing on the spatio-temporal progression of two-stage autoignition of diesel-sprays in low-reactivity ambient fuel-air mixture

Proceedings of the Combustion Institute
2021 | Journal article
EID:

2-s2.0-85104876275

Part of ISSN: 15407489
Contributors: Rajasegar, R.; Niki, Y.; Li, Z.; García-Oliver, J.M.; Musculus, M.P.B.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Reductions in Unburned Ammonia and Nitrous Oxide Emissions From an Ammonia-Assisted Diesel Engine With Early Timing Diesel Pilot Injection

Journal of Engineering for Gas Turbines and Power
2021 | Journal article
EID:

2-s2.0-85120632798

Part of ISSN: 15288919 07424795
Contributors: Niki, Y.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Spatio-Temporal Progression of Two-Stage Autoignition for Diesel Sprays in a Low-Reactivity Ambient: N-Heptane Pilot-Ignited Premixed Natural Gas

SAE Technical Papers
2021 | Conference paper
EID:

2-s2.0-85106988412

Part of ISSN: 01487191
Contributors: Rajasegar, R.; Niki, Y.; Garcia-Oliver, J.M.; Li, Z.; Musculus, M.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Diesel fuel multiple injection effects on emission characteristics of diesel engine mixed ammonia gas into intake air

Journal of Engineering for Gas Turbines and Power
2019 | Journal article
EID:

2-s2.0-85063095875

Part of ISSN: 15288919 07424795
Contributors: Niki, Y.; Nitta, Y.; Sekiguchi, H.; Hirata, K.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Effects of injection pressure on emission and components of particulate matter from marine diesel engine

ASME 2018 Internal Combustion Engine Division Fall Technical Conference, ICEF 2018
2018 | Conference paper
EID:

2-s2.0-85060396139

Contributors: Nakamura, M.; Ohashi, A.; Niki, Y.; Masuda, A.; Takahashi, C.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Emission and combustion characteristics of diesel engine fumigated with ammonia

ASME 2018 Internal Combustion Engine Division Fall Technical Conference, ICEF 2018
2018 | Conference paper
EID:

2-s2.0-85060377542

Contributors: Niki, Y.; Nitta, Y.; Sekiguchi, H.; Hirata, K.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Effects of ammonia gas mixed into intake air on combustion and emissions characteristics in diesel engine

ASME 2016 Internal Combustion Engine Fall Technical Conference, ICEF 2016
2016 | Conference paper
EID:

2-s2.0-85012009149

Contributors: Niki, Y.; Yoo, D.-H.; Hirata, K.; Sekiguchi, H.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Development of fishlike underwater robot aimed for the study of swarm

Proceedings of the International Offshore and Polar Engineering Conference
2011 | Conference paper
EID:

2-s2.0-80052741661

Part of ISSN: 10986189 15551792
Contributors: Ohkubo, Y.; Suzuki, K.; Suzuki, S.; Konno, A.; Ito, S.; Hirata, K.; Niki, Y.; Ichikawa, Y.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Development of large angle / high-speed orientation control technique for underwater vehicle

Proceedings of the International Offshore and Polar Engineering Conference
2010 | Conference paper
EID:

2-s2.0-77956311028

Part of ISSN: 10986189 15551792
Contributors: Suzuki, T.; Konno, A.; Ito, S.; Hirata, K.; Niki, Y.; Kawada, M.
Source: Self-asserted source
Yoichi Niki via Scopus - Elsevier

Peer review (43 reviews for 12 publications/grants)

Review activity for Applied thermal engineering. (3)
Review activity for Chemical engineering journal. (1)
Review activity for Energy. (4)
Review activity for Fuel communications. (1)
Review activity for Fuel. (13)
Review activity for Heliyon. (3)
Review activity for International journal of hydrogen energy. (12)
Review activity for Journal of the Energy Institute. (1)
Review activity for Process safety and environmental protection. (2)
Review activity for Results in engineering. (1)
Review activity for Thermal science and engineering progress. (1)
Review activity for Transportation engineering. (1)