Energy Conversion Engineering (MH-3), Dept. of Mechanical Engineering, Kobe University
Our laboratory focuses on the energy conversion engineering researches. The study field widely spread relating to the energy saving technology, fundamental fluid dynamics and thermodynamics.
Now our research topics are;
- Clarification of Water Transport and the Electrochemical Characteristics in Polymer Electrolyte Fuel Cell
- Performance Improvement of Evaporator used in Binary Cycle for Geothermal Sources
- Two-phase Flow Dynamics
- Heat Flow Characteristics in Heat Exchanger
- Boiling Heat Transfer Enhancement
- Condensation Heat Transfer
- Thermal Flow Characteristics of Non-Newtonian Slurry Flow
- Ultrasonic Flow Measurement Technique
We are also challenging to advanced and unique researches. If you are interested in our research topics or laboratory, you can feel free to contact our staff.
What's new
- 2024.4.30
- Laboratory member list was updated.
- 2023.10.31
- A research paper was published (International collaboration research)
H. Murakawa, S. Maeda, S. Eckert
Effects of a horizontal magnetic field on the cross-sectional distribution of gas bubbles chain rising in a gallium alloy, International Journal of Multiphase Flow 170, 104649 (2024). https://doi.org/10.1016/j.ijmultiphaseflow.2023.104649
- 2023.10.25
- Ms. Maeda (Master course student) won the Encouragement Prize winner at
the Student Paper Competition of the 14th International Symposium on Ultrasonic
Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD2023)
Presentation title: Effect of transverse magnetic field on rising bubble behavior in gallium eutectic alloy
- 2022.12.16
- A research paper was published (First author: Dr. Kubo)
Y. Kubo, S. Yamada, H. Murakawa, H. Asano
Heat transfer coefficient of boiling flows in minichannels with a semicircular cross-section, Applied Thermal Engineering 220, 119697 (2023).https://doi.org/10.1016/j.applthermaleng.2022.119697
- 2022.9.19
- A research paper was published (First author: Mr. Ubara (D2 Student))
T. Ubara, K. Sugimoto, H. Asano
Film thickness and heat transfer characteristics of R1233zd(E) falling film with nucleate boiling on an inclined plate, International Journal of Heat and Mass Transfer 198, 123423 (2022).https://doi.org/10.1016/j.ijheatmasstransfer.2022.123423
- 2022.8.15
- A research paper was published
H. Murakawa, Y. Miyoshi, K. Araki, K. Sugimoto, H. Asano, S. Makimoto
Effect of bubble motion on local heat transfer around a tube across horizontal in-line and staggered tube bundles in bubbly and intermittent flows, Mechanical Engineering Journal 9(4), 22-00069 (2022). https://doi.org/10.1299/mej.22-00069
- 2022.3.24
- A research paper was published (First author: Mr. Hikita (M1 Student))
M. Hikita, T. Yamakita, H. Asano
Study on Void Fraction Characteristics of Gas-Liquid Two-Phase Flows in Horizontal Non-Circular Small Diameter Channel, Japanese Journal of Multiphase Flow 36(1), pp.47-54 (2022). (in Japanese)
- 2021.12.24
- A research paper was published (First author: Mr. Kubo (Doctor course student))
Y. Kubo, S. Yamada, H. Murakawa, H. Asano
Correlation between pressure loss and heat transfer coefficient in boiling flows in printed circuit heat exchangers with semicircular and circular mini-channels, Applied Thermal Engineering 204, 117963 (2022). https://doi.org/10.1016/j.applthermaleng.2021.117963
- 2021.7.9
- A research paper was published (First author: Mr. Ubara (D1 Student))
T. Ubara, H. Asano, K. Sugimoto
Falling Film Evaporation and Pool Boiling Heat Transfer of R1233zd(E) on Thermal Spray Coated Tube, Applied Thermal Engineering, 117329 (2021). https://doi.org/10.1016/j.applthermaleng.2021.117329
- 2021.6.20
- A research paper was published
H. Murakawa, S. Ichimura, K. Sugimoto, H. Asano, S. Umezawa, H. Taira, M. Ibi, H. Akahane
Measurement of steam flow rates using a clamp-on ultrasonic flowmeter with various wetness fractions, Flow Measurement and Instrumentation 80, 101997(2021). https://doi.org/10.1016/j.flowmeasinst.2021.101997
- 2021.6.9
- A research paper was published (International collaboration research)
H. Murakawa, T. Shimizu, S. Eckert
Development of a high-speed ultrasonic tomography system for measurements of rising bubbles in a horizontal cross-section, Measurement 182, 109654 (2021). https://doi.org/10.1016/j.measurement.2021.109654
- 2021.5.28
- Mr. Ubara (Doctor course student) won the third place winner at the Student Paper Competition of 2020ne Purdue Conferences, Refrigeration and Air-Conditioning
Presentation title: Heat Transfer Enhancement of Falling Film Evaporation of HFO-1233zd(E) and HFC-134a on a Horizontal Tube by Thermal Spray Coating
- 2021.5.18
- A research paper was published (First author: Mr. Kubo (Doctor course student))
Y. Kubo, S. Yamada, H. Murakawa, H. Asano
Pressure Drop and Flow Patterns of Boiling Flows in Mini-Channels with Semi-Circular Cross-Section, Applied Thermal Engineering 194, 117096 (2021). https://doi.org/10.1016/j.applthermaleng.2021.117096
- 2021.4.28
- Laboratory introduction movie was uploaded.
- 2021.4.23
- Laboratory member list was updated.
- 2020.5.1
- A research paper was published
H. Murakawa, S. Ichimura, M. Shimada, K. Sugimoto, H. Asano, S. Umezawa, K. Sugita
Effect of incident angle on ultrasonic transmission in steam flow for use with clamp-on ultrasonic flowmeter, Mechanical Engineering Journal 7(4), 20-00131 (2020). https://doi.org/10.1299/mej.20-00131
- 2020.4.23
- Laboratory member list was updated.
- 2020.4.2
- If you are considering taking a graduate school examination and are interested in our laboratory, please do not hesitate to contact us.
- 2020.3.1
- A research paper was published (First author: Mr. Ubara (M1 Student))
T. Ubara, H. Asano, K. Sugimoto
Heat transfer enhancement of falling film evaporation on a horizontal tube by thermal spray coating, Applied Sciences, 10(5), 1632 (2020). https://doi.org/10.3390/app10051632
- 2020.1.20
- The homepage was renewed.