Updated on 2025/02/28

写真a

 
Mori Koichi
 
Organization
Graduate School of Engineering Division of Aerospace and Marine-System Engineering Professor
School of Engineering Department of Aerospace Engineering
Title
Professor
Affiliation
Institute of Engineering

Position

  • Graduate School of Engineering Division of Aerospace and Marine-System Engineering 

    Professor  2022.04 - Now

  • School of Engineering Department of Aerospace Engineering 

    Professor  2022.04 - Now

Degree

  • 工学学士 （ The University of Tokyo ）

  • Doctor(Science) （ The University of Tokyo ）

Research Areas

  • Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Aerospace engineering

  • Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Aerospace engineering

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering

Research Interests

  • Aerospace Propulsion Engineering

  • Fluid dynamics

Research subject summary

  • Laser Propulsion

  • Plasma Propulsion

  • Advanced Propulsion

  • Space Debris Removal

  • Air Breathing Propulsion

Professional Memberships

  • 日本航空宇宙学会

    2001.04 - Now   Domestic

  • AIAA

    2001.04 - Now   Overseas

  • American Institute of Aeronautics and Astronaitics

  • 日本音響学会

  • Japan Society of Aeronautics and Astronautics

  • 日本機械学会

  • 宇宙太陽発電学会

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Committee Memberships (off-campus)

  • 電気推進先端推進部門　会試編集委員   日本航空宇宙学会  

    2021.04 - Now 

Job Career (off-campus)

  • 東北大学流体科学研究所　助手

    2004.04 - 2006.03

  • 名古屋大学工学研究科航空宇宙工学専攻　助手

    2006.04 - 2007.03

  • 名古屋大学工学研究科航空宇宙工学専攻　講師

    2007.04 - 2012.03

  • 名古屋大学工学研究科航空宇宙工学専攻　准教授

    2012.04 - 2021.03

  • Nagoya University   Graduate School of Engineering

    2018.04 - Now

  • Nagoya University, Lectureer

    2007.04

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Education

  • The University of Tokyo   School of Frontier Science   Department of Advanced Energy   Doctor's Course   Graduated/Completed

    2001.04 - 2004.03

Papers

  • Verification of the Combustion Characteristics and Exhaust Gas Components of Fatty Acid Ethyl Esters Derived from Coconut Oil Using a Small Jet Engine

    Hongo Takuto, Ogawa Shinichiro, Mori Koichi, Maeda Yasuaki, Nguyen Huynh Phuong Uyen

    JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES   73 ( 1 )   1 - 9   2025（ ISSN:13446460 ） （ eISSN:24323691 ）

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    <p>A series of combustion experiments were performed employing a micro-jet engine under diverse conditions. These conditions encompassed a spectrum of Biofuel mixture ratios spanning from 10 to 50, alongside rotating speeds ranging between 80,000 and 100,000rpm. The primary objective was to clarify the combustion characteristics and exhaust gas components of Biofuel (fatty acid ethyl esters) derived from coconut oil. Comparing the combustion efficiency of jet fuel and Biofuel-blended fuel, the findings exhibited a marginal enhancement in efficiency when Biofuel mixtures comprised up to 50% Biofuel. This increase was ascribed to the increase in the oxygen content within the fatty acid ethyl ester constituents and the relatively low heating values of the ethyl esters compared with those of the jet fuel. On the other hand, the specific fuel consumption increases with higher Biofuel blending ratios. This is because, as the Biofuel blending ratio increases, the lower heating value decreases, necessitating more fuel for stable combustion. Gas analysis revealed various effects on greenhouse gas emissions. While CO emissions increased slightly, CO$_2$ and NO emissions decreased with an increase in the Biofuel blending ratio. </p>

    DOI： 10.2322/jjsass.73.1

  • Development of the Free Drift (FD) Method to Measure the Laser-thrust Generated on an Aluminum Droplet

    Minagawa Naoki, Mori Koichi, Ishikawa Takehiko, Koyama Chihiro, Oda Hirohisa, Watanabe Yuki

    JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES   72 ( 5 )   175 - 180   2024（ ISSN:13446460 ） （ eISSN:24323691 ）

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    <p>We established a Free Drift (FD) method to remotely measure the force generated on an isolated object simulated using an Electro-static Levitation Furnace (ELF). The FD method can be applied in high power laser ablation experiments, where the change in the electric charge of sample is big. The analyses to deduce the thrust are described in detail. Using this method in the ELF on the International Space Station (ISS), we had successfully measured the thrust generated by laser beam irradiation to an Al droplet for the first time. The momentum coupling coefficient (<i>C</i><sub>m</sub>) when irradiated by a laser beam with a laser power density of 10<sup>3</sup>-10<sup>4</sup> W/cm<sup>2</sup> was around 10<sup>0</sup> N/GW. </p>

    DOI： 10.2322/jjsass.72.175

  • Thrust Measurement by Weak Laser Ablation on Zirconium, Titanium, and SUS304 Molten Droplets Using Electrostatic Levitator

    MINAGAWA Naoki, MORI Koichi, ISHIKAWA Takehiko, KOYAMA Chihiro

    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN   22 ( 0 )   67 - 70   2024（ eISSN:18840485 ）

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  • Study on Combustion Characteristics of Coconut SAF Using Micro Jet Engine

    Ogawa Shinichiro, Mori Koichi, Maeda Yasuaki

    International Journal of Gas Turbine, Propulsion and Power Systems   15 ( 5 )   v15n5tp06   2024（ eISSN:18825079 ）

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    In recent years, research and development on sustainable aviation fuel (SAF) has been conducted by many researchers and aviation industries. In this study, we focused on coconut SAF produced by the co-solvent method, which achieves a minimum emission of waste and a low consumption of energy. The aim of this paper is to clarify the combustion performance of blends of coconut SAF and jet fuel. The combustion experiment was performed using a J-850 jet engine. The applied fuel composition rates were between 10 and 50% coconut SAF in the jet fuel blends. Fuel blends of coconut SAF show higher combustion efficiency than only jet fuel. However, engine performance becomes less effective in the case of increasing the coconut SAF. The reason was that the capric acid methyl and caproic acid methyl, which include the coconut SAF, carbon chain generally improves the ignition quality of the fuel because of the presence of oxygen elements; thus, the turbine inlet temperature increases. Furthermore, we investigate NOx emissions in the case of a blend of coconut SAFs using the NOx emission index (EINOx) prediction method.

    DOI： 10.38036/jgpp.15.5_v15n5tp06

  • Evaluation of Exhaust Gas from Micro-Jet Engine using SAF Made from Coconut

    Ogawa S.

    AIAA SciTech Forum and Exposition, 2024   2024（ ISBN:9781624107115 ）

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  • 航空宇宙工学分野の応用を目指した音響メタマテリアルの研究

    森浩一

    騒音制御   46 ( 4 )   2022

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    Publishing type：Research paper (scientific journal)   International / domestic magazine：Domestic journal  

  • 静電浮遊炉を利用した高温スペースデブリの模擬とそれに作用するレーザーアブレーション推力の計測 Reviewed

    秋田智也，古田作，森浩一，小山千尋，石川毅彦

    航空宇宙技術   21   2022

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    Authorship：Corresponding author   Publishing type：Research paper (scientific journal)   International / domestic magazine：Domestic journal  

  • Laser Propulsion Using a Porous Carbon Heat Exchanger Reviewed

    Koichi Mori

    2022

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    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   International / domestic magazine：International journal  

  • The Simulation of a High-temperature Space Debris Using an Electrostatic Levitation Furnace and the Measurement of the Laser-ablation-thrust

    Akita Tomoya, Furuta Tsukuru, Mori Koichi, Koyama Chihiro, Ishikawa Takehiko

    AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES   21 ( 0 )   48 - 52   2022（ eISSN:18840477 ）

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    <p>An electrostatic levitation furnace is used to simulate a small space debris heated to a high-temperature in space and to measure thrust-force generated by irradiating a laser beam remotely on the simulated space debris. In the electrical levitation furnace, the divergence of the electric field induces the recovery force proportional to the displacement of an electrically-levitated target on the horizontal plane. The force/displacement proportionality constant, so-called spring-constant is calibrated through an impact-hammer method, inducing an intrinsic oscillation of the target by applying an impulsive force. The external force applied on an electrically-levitated-target in a horizontal direction is estimated from the product of the proportionality constant and the displacement of the target. In the experiment, an electrically-levitated zirconium droplet is heated and ablated by irradiating a continuous-wave carbon dioxide laser beam, and the thrust-force generated on the laser spot is measured. </p>

    DOI： 10.2322/astj.21.48

  • 28 GHz microwave powered propulsion efficiency for free-flight demonstration Reviewed

    Satoru Suganuma, Kohei Shimamura, Maho Matsukura, Duc Hung Nguyen and Koichi Mori

    Journal of Spacecraft and Rockets   2021

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    Publishing type：Research paper (scientific journal)   International / domestic magazine：International journal  

  • ガスアトマイズ法における円環スリット型コンファインドノズルのスリット径とガス圧力が粉末特性におよぼす影響 Reviewed

    関本光一郎, 山浦圭祐, 松木隆紀, 鷲見芳紀,井上晋輔, 森 浩一

    電気製鋼   92 ( 2 )   2021

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    Authorship：Last author   Publishing type：Research paper (scientific journal)   International / domestic magazine：Domestic journal  

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Books and Other Publications

MISC

Grant-in-Aid for Scientific Research

  • Electron beam ablation propulsion and its application to space debris trajectory transfer

    Grant-in-Aid for Scientific Research(B)  2026

  • Electron beam ablation propulsion and its application to space debris trajectory transfer

    Grant-in-Aid for Scientific Research(B)  2025

  • Electron beam ablation propulsion and its application to space debris trajectory transfer

    Grant-in-Aid for Scientific Research(B)  2024

Charge of on-campus class subject

  • 航空宇宙工学実験1

    2024   Weekly class   Undergraduate

  • 航空宇宙工学基礎1

    2024   Weekly class   Undergraduate

  • 航空宇宙工学特論

    2024   Weekly class   Graduate school

  • 航空宇宙海洋系特別研究第1

    2024   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別演習第1

    2024   Intensive lecture   Graduate school

  • 初年次ゼミナール

    2024   Weekly class   Graduate school

  • 航空宇宙海洋系特別演習

    2024   Intensive lecture   Graduate school

  • 航空宇宙推進工学特別講義

    2024   Weekly class   Graduate school

  • 工学部インターンシップ

    2024   Intensive lecture   Undergraduate

  • 航空宇宙推進工学

    2024   Weekly class   Undergraduate

  • 熱力学A

    2024   Weekly class   Undergraduate

  • 航空宇宙工学演習2

    2024   Weekly class   Undergraduate

  • エアロスペースエンジニアリングセミナー

    2024   Weekly class   Undergraduate

  • 航空宇宙工学実験2

    2024   Weekly class   Undergraduate

  • 航空宇宙工学基礎2

    2024   Weekly class   Undergraduate

  • 航空宇宙工学特別学外実習

    2024   Intensive lecture   Graduate school

  • 宇宙推進工学特論

    2024   Weekly class   Graduate school

  • 航空宇宙海洋系特別研究第2

    2024   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別演習第2

    2024   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別研究

    2024   Intensive lecture   Graduate school

  • 航空宇宙工学卒業研究

    2024   Intensive lecture   Undergraduate

  • Advanced Topics in Aerospace Engineering

    2021    

  • Thermodynamics A

    2021    

  • Aerospace Propulsion Engineering

    2021    

  • Fundamentals of Aerospace Engineering

    2021    

  • Exercises on Aerospace Engineering II

    2021    

  • Selected Topics in Aerospace Propulsion

    2021    

  • Laboratory Experiments: Aerospace Engineering II

    2021   Practical Training  

  • Laboratory Experiments: Aerospace Engineering I

    2021   Practical Training  

  • Advanced Space Propulsion

    2021    

  • Exercises on Aerospace Engineering I

    2021    

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Job title

  • Job title within the department

    School of Engineering Department of Aerospace Engineering 

    学科長  2022.04 - 2024.03