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Morimoto　Kenichi　

    Department of Mechanical Engineering　Associate Professor
    Course of Advanced Mechatronics Systems　Associate Professor
    Research Institute of Industrial Technology　Researcher
Last Updated :2024/04/23

Researcher Information

Degree

  • Doctor of Engineering（2006/03 The University of Tokyo）

URL

J-Global ID

Research Interests

  • Thermal and Fluids Engineering   High-Performance Heat Exchangers   Optimal Shape Design   MEMS-Based Gas Sensor   Turbulent Heat Exchangers   Adjoint-Based Shape Optimization   Computational Fluid Dynamics   

Research Areas

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Thermal engineering
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering
  • Nanotechnology/Materials / Nano/micro-systems

Academic & Professional Experience

  • 2023/04 - Today  Toyo UniversityFaculty of Science and Engineering, Department of Mechanical EngineeringAssociate Professor
  • 2013/01 - 2023/03  The University of TokyoGraduate School of EngineeringLecturer
  • 2013/08 - 2014/07  University of MichiganVisiting Researcher
  • 2011/08 - 2013/01  The University of TokyoGraduate School of EngineeringAssistant Professor
  • 2008/04 - 2011/07  Ritsumeikan UniversityDepartment of Micro System TechnologyAssistant Professor
  • 2006/04 - 2008/03  National Maritime Research InstituteCFD Research CenterResearcher
  • 2003 - 2006  JSPS Research Fellow (DC1)

Education

  •        - 2006  The University of Tokyo  Graduate School of Engineering  Department of Mechanical Engineering
  •        - 2001/03  The University of Tokyo  Faculty of Engineering  Department of Mechanical Engineering

Association Memberships

  • IEEE   ASME   日本伝熱学会   日本機械学会   American Physical Society   

Published Papers

  • An Zhao; Yong Fan; Yuji Suzuki; Kenichi Morimoto
    International Journal of Heat and Mass Transfer PERGAMON-ELSEVIER SCIENCE LTD 172 0017-9310 2021/06 [Refereed]
  • An Zhao; Yong Fan; Yuji Suzuki; Kenichi Morimoto
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER PERGAMON-ELSEVIER SCIENCE LTD 162 0017-9310 2020/12 [Refereed]
  • Kenichi Morimoto; Cheng-Han Yeh; Takahiro Mito; Yuji Suzuki
    Macromolecules American Chemical Society ({ACS}) 53 (14) 6024 - 6031 2020/07 [Refereed]
  • Effects of the Cell and Triangular Microwell Size on the Cell-trapping Efficacy and Specificity
    T. TONGMANEE; W. SRITURAVANICH; A. SAILASUTA; W. SRIPUMKHAI; W. JEAMSAKSIRI; K. MORIMOTO; Y. SUZUKI; A. PIMPIN
    Journal of Mechanical Science and Technology 33 (11) 5571 - 5580 2019/11 [Refereed]
  • Minhyeok Lee; Taejin Kwan; Shunichiro Hara; Kenichi Morimoto; Yuji Suzuki
    IEEE Sensors Letters IEEE 3 (11) 2501704  2475-1472 2019/10 [Refereed]
  • Deep Electrode and Parylene E-based Capacitive VOC Detector for Micro Gas Chromatograph Application
    C.-H. Yeh; X. Zhao; Y. Qin; Y. B. Gianchandani; Y. Suzuki; K. Morimoto
    Proc. 20th Int. Conf. Solid-state Sensors, Actuators, and Microsystems (Transducers’19) T3P.036-1 - T3P.036-4 2019/06 [Refereed]
  • Yu-Chung Chen; Yuji Suzuki; Kenichi Morimoto
    Langmuir American Chemical Society ({ACS}) 35 (6) 2013 - 2022 2019/02 [Refereed]
  • Combustion Characteristics of Mildly Flammable R1234yf in Micro Flow Reactor under Elevated Pressures
    Y. Fan; K. Morimoto; Y. Suzuki
    Proc. 37th Int. Symp. Combustion (Combustion2018) 4P156  2018/08 [Refereed]
  • High-Performance Double-Pipe Turbulent Heat Exchangers with V-Shaped Oblique Wavy Walls
    K. Morimoto; S. Jin; Y. Suzuki
    Proc. 9th Int. Symp. Turbulence, Heat and Mass Transfer (THMT’18) 655 - 664 2018/07 [Refereed]
  • Boiling Heat Transfer Characteristics of Low GWP Working Fluids at Low Mass and Heat Fluxes
    A. Zhao; J. Peng; Y. Fan; K. Morimoto; Y. Suzuki
    Proc. 10th Int. Conf. Boiling and Condensation Heat Transfer (ICBCHT'18), B1126-1 - B1126-2 2018/03 [Refereed]
  • Xie, H; Morimoto, K; Suzuki, Y
    J. Sci.: Conf. Ser. Vol. 1052 No. 012033  2018 [Refereed]
  • MEMS Gas Sensor Using Parylene E and High-Aspect-Ratio Electrode Structure for High-Sensitivity VOC Detection
    C.-H. Yeh; Y. Suzuki; K. Morimoto
    Proc. 9th JSME-KSME Thermal Fluid Eng. Conf. (TFEC9) TFEC9-1617-1 - TFEC9-1617-5 2017/10 [Refereed]
  • Reactivity Evaluation of Weak-Combustibility Fluids in Micro Flow Reactor with Streamwise Temperature Gradient
    J. Ro; Y. Fan; K. Morimoto; Y. Suzuki
    Proc. 9th JSME-KSME Thermal Fluid Eng. Conf. (TFEC9) TFEC9-1603-1 - TFEC9-1603-5 2017/10 [Refereed]
  • Heat Transfer Performance of Low-GWP Refrigerants in a Small-Scale Binary-Cycle System
    R. Matsushita; Y. Fan; K. Morimoto; Y. Suzuki
    Proc. 9th JSME-KSME Thermal Fluid Eng. Conf. (TFEC9) TFEC9-1513-1 - TFEC9-1513-5 2017/10 [Refereed]
  • RANS-based Adjoint Analysis for Shape Optimization of High-performance Turbulent Heat Exchangers
    K. Morimoto; Y. Goto; Y. Suzuki
    Proc. 9th JSME-KSME Thermal Fluid Eng. Conf. (TFEC9) TFEC9-1618-1 - TFEC9-1618-5 2017/10 [Refereed]
  • Meshless-analysis-based Shape Optimization in Conjugate Heat Transfer Problems
    H. Kinoshita; Y. Suzuki; K. Morimoto
    Proc. 9th JSME-KSME Thermal Fluid Eng. Conf. (TFEC9) TFEC9-1407-1 - TFEC9-1407-5 2017/10 [Refereed]
  • Wall Temperature Measurement in a Visualization Engine Using a Flexible Wireless Sensor
    T. Kwan; M. Lee; K. Morimoto; Y. Suzuki
    Proc. 1st Asian Conf. Therm. Sci. ACTS-P00670-1 - ACTS-P00670-5 2017/03 [Refereed]
  • Thermal Evaluation of Near-field-enhanced MEMS Radiator with Multi-layered Structure
    S. Oh; K. Morimoto; Y. Suzuki
    Proc. 1st Asian Conf. Therm. Sci. ACTS-P00671-1 - ACTS-P00671-5 2017/03 [Refereed]
  • Minhyeok Lee; Kenichi Morimoto; Yuji Suzuki
    MEASUREMENT SCIENCE AND TECHNOLOGY IOP PUBLISHING LTD 28 (3) No. 035101  0957-0233 2017/03 [Refereed]
  • Morimoto, K.; Kinoshita, H.; Suzuki, Y.
    Journal of Thermal Science and Technology JAPAN SOC MECHANICAL ENGINEERS 11 (3) JTST0040-1 - JTST0040-12 1880-5566 2016/12 [Refereed]
  • Parylene-Based MEMS Gas Sensor for High-Sensitivity VOC Detection with 3D Electrode Structure
    C.-H. Yeh; Y. Suzuki; K. Morimoto
    Proc. Int. Symp. on Micro-Nano Science and Technology 2016 (MNST2016) 2016/10 [Refereed]
  • Adjoint-Based Shape Optimization of Extended Heat Transfer Surfaces for Enhanced Solidification Process with Heat Conduction in the Solid Wall
    K. Morimoto; H. Kinoshita; Y. Suzuki
    Proc. 1st Pacific Rim Therm. Eng. Conf. (PRTEC2016) PRTEC-15161-1 - PRTEC-15161-5 2016/03 [Refereed]
  • Two-Phase Flow and Heat Transfer in Compact Heat Exchangers with Oblique Wavy Walls
    Y. Noguchi, K. Morimoto, Y. Suzuki
    Proc. 1st Pacific Rim Therm. Eng. Conf. (PRTEC2016) PRTEC-15159-1 - PRTEC-15159-5 2016/03 [Refereed]
  • Yu-Chung Chen; Kenichi Morimoto; Yuji Suzuki
    2016 IEEE 29TH INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS) IEEE 137 - 140 1084-6999 2016/01 [Refereed]
  • Hong Xie; Kenichi Morimoto; Yuji Suzuki
    16TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2016) IOP PUBLISHING LTD 773 1742-6588 2016 [Refereed]
  • Song, K.-Y.; Morimoto, K.; Chen, Y.-C.; Suzuki, Y.
    Sensors and Actuators, B: Chemical ELSEVIER SCIENCE SA 225 492 - 497 0925-4005 2016/03 [Refereed]
  • 最適形状設計・最適制御に基づく高性能熱流体機器の開発に向けて
    森本 賢一; 鈴木 雄二
    日本伝熱学会誌 55巻 (231号) 30 - 35 2016
  • Minhyeok Lee; Kenichi Morimoto; Yuji Suzuki
    SAE Technical Papers SAE International 2015- (September) 0148-7191 2015/09 [Refereed]
  • H. Nakajima; S. Oh; A. Ueno; K. Morimoto; Y. Suzuki
    15TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2015) IOP PUBLISHING LTD 660 No. 012049  1742-6588 2015 [Refereed]
  • Yu-Chung Chen; Ki-Young Song; Kenichi Morimoto; Yuji Suzuki
    2015 28TH IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS 2015) IEEE 1086 - 1089 1084-6999 2015/01 [Refereed]
  • Lee, M.; Morimoto, K.; Suzuki, Y.
    Journal of Physics: Conference Series IOP PUBLISHING LTD 660 (1) 1742-6588 2015 [Refereed]
  • Modeling and Characterization of the Transient Performance of a Gas Detector Based on Fringe-Field Capacitance
    K. Morimoto; Y. Qin; Y. B. Gianchandani
    Proc. of IEEE Sensors 2014 1843 - 1846 2014/11 [Refereed]
  • Adjoint-Based Optimum Thermal Control of Pulsed Laser Diodes
    K. Morimoto; Y. Suzuki
    Proc. of the 15th International Heat Transfer Conference IHTC-9670-1 - IHTC-9670-10 2014/08 [Refereed]
  • Investigation of Cassie-to-Wenzel Transition of Liquid Droplets on MEMS-Based Pillared Surface
    K.-Y. Song; K. Morimoto; Y. Suzuki
    Proc. of the 7th Asia-Pacific Conference of Transducers and Micro-Nano Technology (APCOT2014) 2014/06 [Refereed]
  • Lee, M.; Kawahara, Y.; Morimoto, K.; Suzuki, Y.
    Journal of Physics: Conference Series IOP PUBLISHING LTD 557 (1) 1742-6588 2014 [Refereed]
  • New Mathematical Model for Electrostatic Stability of the Cassie State on MEMS-Based Pillared Surface
    K.-Y. Song; K. Morimoto; Y. Suzuki
    Proc. 17th Int. Conf. Miniaturized Systems for Chemistry and Life Sciences (μTAS2013) 714 - 716 2013/10 [Refereed]
  • K. Sakata; K. Tagomori; N. Sugiyama; M. Takenouchi; Y. Shinya; K. Morimoto; Y. Suzuki
    Journal of Thermal Spray Technology 22 (2-3) 138 - 144 1059-9630 2013/03 [Refereed]
  • The Effect of Shear-Induced Lift Force on the High-Speed Cell Motion in Microchannel with Adhesive Wall
    K. Morimoto; D. Rangsiwatakapong; Y. Suzuki
    Proc. 26th IEEE Int. Conf. Micro Electro Mechanical Systems (MEMS’13) 141 - 144 2013/01 [Refereed]
  • Yoshida, J.; Morimoto, K.; Suzuki, Y.
    Journal of Physics: Conference Series IOP PUBLISHING LTD 476 (1) No. 012079  1742-6588 2013 [Refereed]
  • Multistep Branched-Microchannel Network for Purity-Controlled Blood Plasma Skimming
    K. Morimoto; T. Ito; S. Konishi
    Proc. of the 16th Int. Conf. on Miniaturized Systems for Chemistry and Life Sciences (μTAS2012) 551 - 553 2012/10 [Refereed]
  • MEMS-Based Pillared Surface for High-Speed Droplet Manipulation: Failure of Cassie-Baxter Model
    K. Morimoto; K. Fukumoto; Y. Suzuki
    Proc. of the 16th Int. Conf. on Miniaturized Systems for Chemistry and Life Sciences (μTAS2012) 64 - 66 2012/10 [Refereed]
  • MEMS-Based Superhydrophobic Surface for High-Speed Droplet Manipulation
    K. Fukumoto; K. Morimoto; Y. Suzuki
    Proc. of the 8th KSME-JSME Thermal and Fluids Engineering Conf. FR09-005-1 - FR09-005-4 2012/03 [Refereed]
  • Effect of Fuel Supply on Pressure Increase of Anode Gas Recirculation Supersonic Ejector for SOFC
    M. Takada; K. Morimoto; Y. Suzuki; K. Ikoma
    Proc. of the 8th KSME-JSME Thermal and Fluids Engineering Conf. FR07-003-1 - FR07-003-4 2012/03 [Refereed]
  • Optimum Temperature Control of Micro Devices Under High-speed Thermal Disturbances
    M. Kim; K. Morimoto; S. Ito; Y. Suzuki
    Proc. of the 25th IEEE Int. Conf. Micro Electro Mechanical Systems (MEMS’12) 1085 (1088) 2012/01 [Refereed]
  • Kazunori Shimizu; Atsushi Shunori; Kenichi Morimoto; Mitsuru Hashida; Satoshi Konishi
    SENSORS AND ACTUATORS B-CHEMICAL ELSEVIER SCIENCE SA 156 (1) 486 - 493 0925-4005 2011/08 [Refereed]
  • A Design of Longitudinally-Divided Balloon Structure in PDMS Pneumatic Balloon Actuator Based on FEM Simulations
    K. Morimoto, A. Utsumi, S. Konishi
    Proc. of the 16th Int. Conf. Solid-State Sensors, Actuators, and Microsystems (Transducers’11) 2774 - 2777 2011/06 [Refereed]
  • 5-Inch-Size Contactless Gripper Using Arrayed Spiral Air Flows
    K. Morimoto; Y. Tada; H. Takashima; K. Minamino; R. Tahara; S. Konishi
    Proc. of the 24th Int. Conf. on IEEE Micro Electro Mechanical Systems (MEMS’11) 1063 - 1066 2011/01 [Refereed]
  • Design and Characterization of High-Performance Contactless Gripper Using Spiral Air Flows
    K. Morimoto; Y. Tada; H. Takashima; K. Minamino; R. Tahara; S. Konishi
    Proc. of 2010 International Symposium on Micro-Nano Mechatronics and Human Science (MHS2010) 423 - 428 2010/11 [Refereed]
  • Strain-Gradation Generator Using Serially Connected Microballoons for Parallel Testing of Cell-Stretching Culture
    K. Shimizu; A. Shunori; K. Morimoto; M. Hashida; S. Konishi
    Proc. of the 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences (μTAS2010) 1568 - 1570 2010/10 [Refereed]
  • Numerical Estimation of Plasma Layer Thickness in Branched Microchannel Using a Multi-Layer Model of Blood Flow
    K. Morimoto; D. Kato; S. Konishi
    Proc. of the 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences (μTAS2010) 378 - 380 2010/10 [Refereed]
  • Numerical Simulation of Bending Motions of Pneumatic Balloon Actuators
    K. Morimoto; K. Nasu; S. Konishi
    Proc. of the 5th Asia-Pacific Conference of Transducers and Micro-Nano Technology (APCOT2010) 182 - 182 2010/07 [Refereed]
  • Design and Characterization of MEMS-Based Nozzle for Application to Air-Flow Type Fiber Generation Technology
    K. Morimoto; Y. Tada; H. Takashima; K. Minamino; R. Tahara; S. Konishi
    Proc. of 2010 International Symposium on Flexible Automation (ISFA2010) JPS-2463-1 - JPS-2463-4 2010/07 [Refereed]
  • A MEMS-Based Contactless Gripper with Arrayed Spiral Air Flows
    K. Morimoto; Y. Tada; H. Takashima; K. Minamino; R. Tahara; S. Konishi
    Proc. of 2010 International Symposium on Flexible Automation (ISFA2010) JPS-2464-1 - JPS-2464-3 2010/07 [Refereed]
  • Kenichi Morimoto; Yuji Suzuki; Nobuhide Kasagi
    JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY JAPAN SOC MECHANICAL ENGINEERS 5 (1) 24 - 35 1880-5566 2010 [Refereed]
  • Micro Spinning Nozzle Having 3D Profile for Fiber Generation with Spiral Air Flow
    K. Morimoto; Y. Tada; H. Takashima; K. Minamino; R. Tahara; S. Konishi
    Proc. of the 23rd Int. Conf. on IEEE Micro Electro Mechanical Systems (MEMS’10) 244 - 247 2010/01 [Refereed]
  • Taizo Kobayashi; Daiki Kato; Hiroyuki Koga; Kenichi Morimoto; Makoto Fukuda; Yoshiharu Kinoshita; Hiroshi Yoshida; Satoshi Konishi
    IEEJ Transactions on Sensors and Micromachines 129 (11) 2 - 386 1341-8939 2009 [Refereed]
  • Adaptive Blood Cell Separation Using Cooperation of Serially Connected Membrane Filters
    T. Kobayashi; D. Kato; H. Koga; K. Morimoto; M. Fukuda; Y. Kinoshita; H. Yoshida; S. Konishi
    260 - 263 2009/01 [Refereed]
  • Kenichi Morimoto; Yuji Suzuki; Nobuhide Kasagi
    JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME ASME 130 (10) 101801  0022-1481 2008/10 [Refereed]
  • MORIMOTO Kenichi; SUZUKI Yuji; KASAGI Nobuhide
    Transactions of the Japan Society of Mechanical Engineers B The Japan Society of Mechanical Engineers 73 (732) 1670 - 1677 0387-5016 2007 [Refereed]
  • High-Performance Heat Exchanger with Oblique Wave Walls
    Y. Suzue; K. Morimoto; Y. Suzuki; N. Kasagi
    Proc. of the 13th International Heat Transfer Conference HEX-24-1 - HEX-24-8 2006/08 [Refereed]
  • Optimal Shape Design of Counter-Flow Primary Surface Recuperators
    K. Morimoto; Y. Suzuki; N. Kasagi
    Proc. of the 5th Int. Conf. Enhanced, Compact and Ultra-Compact Heat Exchangers 124 - 131 2005/09 [Refereed]
  • Optimal Shape Design of Recuperators with Oblique Wavy Walls
    K. Morimoto; Y. Suzuki; N. Kasagi
    Proc. of the 6th KSME-JSME Thermal and Fluids Engineering Conference DD02-1 - DD02-4 2005/03 [Refereed]
  • Adjoint Analysis of Heat and Fluid Flow Toward Optimal Shape Design of Recuperators
    Kenichi Morimoto; Yuji Suzuki; Nobuhide Kasagi
    Thermal Science and Engineering 13 (4) 3 - 4 2005 [Refereed]
  • MORIMOTO Kenichi; SUZUKI Yuji; KASAGI Nobuhide
    Transactions of the Japan Society of Mechanical Engineers. Series B. The Japan Society of Mechanical Engineers 70 (698) 2604 - 2611 0387-5016 2004 [Refereed]
  • Mechanism of Heat Transfer Enhancement in Recuperators with Oblique Wavy Walls
    Kenichi Morimoto; Yuji Suzuki; Nobuhide Kasagi
    Thermal Science and Engineering 12 (4) 99 - 100 2004 [Refereed]

Conference Activities & Talks

  • Wall-Resolved LES and RANS/LES Hybrid Analyses in Turbulent Heat Exchanger with Modified Oblique Wavy Walls
    K. Morimoto; S. Jin; J. Chen
    72nd Annu. Meeting APS DFD  2019/11
  • Parylene-Based MEMS VOC Detector for Mobile Gas Chromatograph Applications  [Invited]
    K. Morimoto
    IEEE Int. Conf. on Cyborg and Bionic Systems (CBS'18)  2018/10  Invited oral presentation
  • Parylene and Its Derivatives as MEMS Materials
    Y. Suzuki; K. Morimoto
    4th Int. Conf. Advanced Electromaterials (ICAE 2017)  2017/11
  • Slug-Flow Dynamics with Phase Change Heat Transfer in Compact Heat Exchangers with Oblique Wavy Walls
    K. MORIMOTO; H. KINOSHITA; R. MATSUSHITA; Y. SUZUKI
    70th Annu. Meeting APS DFD  2017/11
  • Adjoint Analyses of Enhanced Solidification for Shape Optimization in Conjugate Heat Transfer Problem
    K. MORIMOTO; H. KINOSHITA; Y. SUZUKI
    69th Annu. Meeting APS DFD  2016/11
  • G111 Adjoint-Based Shape Optimization of Fin Geometry for Enhanced Solidification Process
    Morimoto Kenichi; Suzuki Yuji
    Procee[d]ings of Thermal Engineering Conference  2015/10  The Japan Society of Mechanical Engineers
     
    This paper presents an adjoint-based shape optimization method for heat transfer processes involving liquid-solid phase-change phenomena. We have formulated an adjoint-based shape optimization scheme using the enthalpy method. With the present method, the fin shape can be optimized for enhanced solidification process, in which the liquid is solidified through heat conduction. Based on a meshless local Petrov-Galerkin (MLPG) method, the characteristics of the present shape-optimization method have been examined through analyses with different terminal time in the cost functional and the initial fin geometries.
  • 22am2-F7 Liquid interface behavior on micro pillared surface with implanted charges
    Chen Yu-Chung; Song Ki-Young; Morimoto Kenichi; Suzuki Yuji
    マイクロ・ナノ工学シンポジウム  2014/10  The Japan Society of Mechanical Engineers
     
    Electret that can be used in the liquid environment has been realized for the first time toward better performance of electret-based generators and actuators. By using super-lyophobic overhanging pillar surface, stable Cassie-Baxter (CB) state is sustained even with low-surface-tension hexadecane liquid and with high surface potential. Pillar surface with a SiO_2 electret layer has been successfully charged with soft X-ray photoionization previously developed. Surface potential as high as -150 V has been sustained after applying hexadecane droplet on the pillar surface. The interface behavior of CB droplets is systematically examined by changing the surface potential of the pillar.
  • B144 Optimum Thermal Control of Vertical-Cavity Surface-Emitting Lasers with Adjoint-Based Heat Conduction Analysis
    Morimoto Kenichi; Suzuki Yuji
    Procee[d]ings of Thermal Engineering Conference  2012/11  The Japan Society of Mechanical Engineers
     
    The objective of the present study is to establish a versatile optimal control methodology for achieving desired spatio-temporal temperature distribution in various micro devices. Here we formulate the adjoint-based optimization scheme, which provides the optimal heat input so as to minimize the temperature variation in the active region of modeled vertical-cavity surface-emitting lasers (VCSELs). Surface heat flux from ring-type heater on the top surface is assumed as the control input. It is shown that the present control is effective for temperature control in VCSELs. The heat input from the ring heater is applied prior to the onset of the laser emission, which significantly suppresses the temperature variation.
  • D131 High-Speed Transient Temperature Control Using Adjoint-Based Optimal Control Scheme
    Kim Minsung; Ito Satoru; Morimoto Kenichi; Suzuki Yuji
    Procee[d]ings of Thermal Engineering Conference  2011/10  The Japan Society of Mechanical Engineers
     
    Efficient optimal control scheme for transient temperature profile in micro devices has been developed based on the adjoint equation of one-dimensional heat conduction in solid layers. Surface heat flux applied with a thin-film heater is employed as the control input in order to minimize temperature changes of a thin active layer embedded in a modeled laser diode. The present feed-forward control scheme provides the optimal heat input, of which magnitude is predominant prior to the onset of a laser pulse. Both in numerical simulations and MEMS-based experiments, the temperature variation during the laser emission can be successfully suppressed by more than 60 % with the present control.
  • G134 High-Performance Non-Contact Gripper Using Arrayed Spiral Air Flows
    Morimoto Kenichi; Tada Yohei; Takashima Hiroki; Minamino Katsushi; Tahara Ryosuke; Konishi Satoshi
    Procee[d]ings of Thermal Engineering Conference  2011/10  The Japan Society of Mechanical Engineers
     
    We present a novel application of the MEMS technology to a non-contact gripper using arrayed spiral air flows, in order to mitigate flow-induced vibration during the levitation of objects. For handling fragile objects such as silicon wafers and solar panels, we employ a gripping technology with continuous air-blowing, which would enable damage-free handling without contamination. MEMS-based grippers in a size of 5 inch square are demonstrated in this study. It is shown that the attraction force is successfully obtained by the negative pressure of a spiral flow in each chamber, and that open holes play an important role in eliminating the interaction between the neighboring chambers and narrowing the holding gap so as to increase the force density over the entire object.
  • 1A2-H16 FEM-Based Analysis for Design Optimization of PDMS Pneumatic Balloon Actuators(MEMS and Nano-Technology)
    MORIMOTO Kenichi; UTSUMI Amane; KONISHI Satoshi
    ロボティクス・メカトロニクス講演会講演概要集  2011/05  The Japan Society of Mechanical Engineers
     
    Toward design optimization of pneumatic balloon actuators (PBAs), we have performed FEM simulation and demonstrated its applicability to compute and characterize the bending motion of PBAs fabricated from PDMS (polydimethylsiloxane)-based materials. It is shown that typical PBA motions could be successfully captured in the present simulation through the comparison of the computational results obtained in the linearly-elastic region with the actual motions of fabricated devices. It is also indicated that the longitudinally-divided balloon structure presently examined could achieve the bending characteristics with more flexibility compared to the conventional single-balloon structure.
  • 1A2-H17 Non-Contact Gripper Using Arrayed Spiral Air Flows(MEMS and Nano-Technology)
    MORIMOTO Kenichi; TADA Yohei; TAKASHIMA Hiroki; MINAMINO Katsushi; TAHARA Ryosuke; KONISHI Satoshi
    ロボティクス・メカトロニクス講演会講演概要集  2011/05  The Japan Society of Mechanical Engineers
     
    We present a novel application of the MEMS technology to a non-contact gripper using arrayed spiral air flows, aimed at the mitigation of flow-induced vibration of levitated objects. For robot end-effector dealing with fragile objects such as silicon wafers and solar panels, we employ an air flow-based gripping technique with continuous air-blowing, which would enable damage-free handling without contamination. We design the gripper based on the concept of distributed forcing with arrayed spiral-flow chambers and open holes. In this study, we design and fabricate MEMS-based grippers in a size of 5 inch square. It is shown that the attraction force is successfully obtained by the negative pressure of a spiral flow in each chamber, and that open holes play an important role in eliminating the interaction between the neighboring chambers.
  • FEM解析に基づいたPDMS製圧力駆動バルーンアクチュエータの変形動作シミュレーション  [Not invited]
    日本機械学会ロボティクス・メカトロニクス講演会2011  2011  Poster presentation
  • 空気旋回流のアレイ構造を用いた非接触吸引デバイス  [Not invited]
    日本機械学会ロボティクス・メカトロニクス講演会2011  2011  Poster presentation
  • Simulation-Based Optimum Design of MEMS Devices for Biomedical Applications  [Not invited]
    Ritsumeikan University - UBC Joint Workshop on MEMS/NEMS and Robotics  2010
  • 空気旋回流を用いた高性能非接触吸引チャックに関する研究  [Not invited]
    第27回「センサ・マイクロマシンと応用システム」シンポジウム  2010
  • PDMS製圧力駆動バルーンアクチュエータの変形動作解析  [Not invited]
    第27回「センサ・マイクロマシンと応用システム」シンポジウム  2010
  • 旋回流機構の分散配置に基づく高性能非接触吸引チャックに関する研究  [Not invited]
    第88期日本機械学会流体工学部門講演会  2010
  • 旋回流を用いた空気精紡のためのマイクロ斜め噴流ノズルの作製とその評価  [Not invited]
    平成21年電気学会全国大会  2009
  • 特性適応型血漿抽出のためのマイクロ分岐流路内流れのCFD解析  [Not invited]
    第26回「センサ・マイクロマシンと応用システム」シンポジウム  2009
  • 固体壁内の熱伝導を伴う熱交換流路の随伴解析に基づく形状最適化  [Not invited]
    第４５回日本伝熱シンポジウム  2008
  • 高性能コンパクト熱交換器の形状最適設計  [Invited]
    日本伝熱学会関西支部2008年度第２回講演討論会  2008
  • 随伴解析に基づく高性能コンパクト熱交換器の形状最適設計  [Not invited]
    第４３回日本伝熱シンポジウム  2006
  • Uncertainty Analysis of the Navier-Stokes Solver SURF for Two-Dimensional Steady Incompressible Flows  [Not invited]
    2nd Workshop on CFD Uncertainty Analysis  2006
  • F153 Performance Assessment of Oblique-Wave Heat Exchangers with Different Aspect Ratio
    SUZUE Yoshinori; MORIMOTO Kenichi; SHIKAZONO Naoki; SUZUKI Yuji; KASAGI Nobuhide
    Procee[d]ings of Thermal Engineering Conference  2005/11  The Japan Society of Mechanical Engineers
     
    The performance of oblique-wave heat exchangers is assessed through a series of numerical simulation for the development of high-performance compact heat exchangers. The effects of flow passage aspect ratio, wave amplitude and the Reynolds number upon the pressure loss and heat transfer characteristics are systematically investigated. It is found that the j/f factor is significantly enhanced even in the case of rectangular passages with wider aspect ratios, and that the choice of wave amplitude under a prescribed flow velocity condition is critically important to improve the performance of this type of heat exchangers.
  • 再生熱交換器の形状最適設計に向けた熱流動の随伴解析  [Not invited]
    第４２回日本伝熱シンポジウム  2005
  • 異なる流路断面アスペクト比の斜め波状壁熱交換器の性能評価  [Not invited]
    日本機械学会熱工学コンファレンス2005  2005
  • 斜め波状壁を用いた再生熱交換器の伝熱促進機構  [Not invited]
    第４１回日本伝熱シンポジウム  2004
  • Optimal Shape Design of Recuperators with Oblique Wavy Walls
    MORIMOTO Kenichi; SUZUKI Yuji; KASAGI Nobuhide
    Procee[d]ings of Thermal Engineering Conference  2003/11  The Japan Society of Mechanical Engineers
     
    Direct numerical simulation of laminar flow in model heat exchangers with oblique wavy walls is made in order to assess the heat transfer and pressure loss characteristics for the optimal shape design of recuperators. The effect of oblique angles of the wavy walls is systematically evaluated. It is revealed that the flow structures are drastically modified due to the strong secondary flow induced by the wavy walls, and that the heat transfer enhancement could be greater than the pressure loss penalty with optimal surface geometries and flow configuration. It is also found that the averaged Nu number is increased when thermal coupling of hot and cold fluid passages is considered.
  • Genetic Algorithm-Based Optimization of Feedback Control Scheme for Wall Turbulence  [Not invited]
    3rd Symposium on Smart Control of Turbulence  2002
  • 遺伝的アルゴリズムに基づいた壁乱流フィードバック制御に関する研究  [Not invited]
    日本流体力学会年会2001  2001
  • Feedback Control of Wall Turbulence Based on the Streamwise Wall Shear Stress  [Not invited]
    54th Annual Meeting of the Division of Fluid Dynamics  2001

Industrial Property Rights

  • 再生熱交換器，及び再生熱交換方法
    3697523
  • 熱交換器およびこれを用いた空気調和装置並びに空気性状変換器
    WO2007-013623 A1

Awards & Honors

  • 2017/11 17th Int. Conf. on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2017) Organizing Committee Best Paper Award
     Electrostatic Unsteady Thermal Energy Harvesting Using Nematic Liquid Crystal 
    受賞者: Xie, H.;Morimoto, K.;Suzuki, Y.
  • 2007 Young Researcher Award of the Heat Transfer Society of Japan
     JPN

Research Grants & Projects

  • 科学技術振興機構：産学が連携した研究開発成果の展開 研究成果展開事業 研究成果最適展開支援プログラム(A-STEP) 産学共同(育成型)
    Date (from‐to) : 2020 -2022 
    Author : 森本 賢一
     
    研究責任者らが独自に提案してきた斜め波状壁を用いた2次流れ型伝熱促進コンセプトを応用し、スリット構造を用いずに高熱伝達・低圧力損失特性を実現する新規高性能熱交換器を開発する。本課題では、高効率冷凍サイクル/ヒートポンプシステムの実現のための鍵となる高性能コンパクト熱交換器を具体的な開発対象とし、熱物質輸送解析と最適制御理論を融合することで、着霜特性を考慮した新規形状最適化手法を構築する。数値解析技術に基づく形状最適化、新提案熱交換器のプロトタイプ製作、および熱交換器性能・着霜特性の実験的評価を通じて、新規提案熱交換器の従来熱交換器に対する優位性を定量評価し、実用化に向けた設計指針を確立する。
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Date (from‐to) : 2015/04 -2018/03 
    Author : Suzuki Yuji; MORIMOTO Kenichi; MARUTA Kaoru; SAIKI Yu; JU Yiguang; DEUTSCHMANN Olaf
     
    Flame near the wall is largely affected by the chemical boundary condition as well as the thermal and fluidic boundary conditions. The chemical boundary condition depends on the surface reaction, and recently it is proved that it has an important role in the macroscopic combustion field through chemical quenching by radical adsorption and enhancement of gas-phase reaction/autoignition by desorption of the radical from the surface. In the present study, near-wall combustion mechanisms when the surface chemical materials are modified, and thermal and chemical flame-to-wall interaction is investigated in detail. For that purpose, a series of measurements of flame temperature, radical distribution using microscopic laser induced fluorescence, and surface reaction measurement in non-combustion field using electro-discharge-based radical formation as well as numerical simulations with detailed gas-phase and surface reactions are carried out.
  • Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
    Date (from‐to) : 2012/04 -2014/03 
    Author : MORIMOTO Kenichi
     
    The objectives of this study are to develop adjoint-based optimum thermal control schemes for thermal processes and to verify the effectiveness of the present control scheme in real experiments. The proposed scheme would allow for control of temperature distribution in micro devices in a spatio-temporal way, which is not achievable by conventional thermal management techniques that can cope with only steady and spatially-uniform temperature distribution. In the present study, optimum thermal control schemes based on adjoint heat conduction analysis have been developed for stabilization of the temperature profile in pulsed laser diodes.
  • 日本学術振興会：科学研究費助成事業 特別研究員奨励費
    Date (from‐to) : 2003 -2005 
    Author : 森本 賢一
     
    マイクロガスタービンを中核とする小型発電装置が環境低負荷を実現する高効率分散エネルギーシステムとして注目を集めている.種々のサイクル解析を通じて早期実用化のための技術課題が検討され,高性能なコンパクト熱交換器の開発の重要性が指摘されている.本研究では,隔壁により高温・低温流体を千鳥状に配置する対向流型熱交換器を対象とし,流路内の熱流動特性に対する詳細な熱流動解析を行った.従来,複雑形状流路内において等温加熱条件や等熱流束条件などの非現実的な温度境界条件が課されることが多いのに対し,本熱流動解析では,高温・低温場の温度連成を考慮した温度境界条件を適用し,隣接する流路間の伝熱特性を定量的に評価した.その結果,斜め波状壁を用いることにより層流熱交換器の伝熱・圧力損失特性を顕著に向上できることを示し,伝熱・圧力損失特性を向上させる観点から,2次流れによる伝熱促進効果を低圧力損失で発現させる新たな熱交換器形状を提案した.次に,近年の計算機性能の向上とともに急速に進展している随伴解析を用いた流体機器の形状最適化法を拡張し,局所の熱流動に基づいた熱交換器流路の形状最適設計手法を新たに構築した.斜め波状壁熱交換器への適用を通じて本形状最適化の有効性を検証し,流路形状・熱流動構造の最適化過程を明らかにした.本手法により斜め波状壁熱交換器の最大のj/f因子がさらに約4%向上し,本手法が有効に機能することが示された.今後,局所の熱流動に基づいた熱流体機器の最適設計を実現するためには,ハードウェアへの実装を想定し,より簡便な最適化アルゴリズムの開発が重要であると考えられる.

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