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Fluid Process Engineering Lab
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A lab that creates materials and treats waste using thermal plasma.
AboutAbout the lab
Materials synthesis and waste treatment with thermal plasma.
The Fluid Process Engineering Lab studies the synthesis of materials and the treatment of waste using thermal plasma.
While unraveling the unknown phenomena occurring inside plasma, the lab develops new methods such as nanoparticle synthesis and the decomposition of fluorocarbons (CFCs).
The lab also works on lunar resource utilization, producing water by reducing lunar soil with hydrogen.
On the lab's website, it is introduced under the name "Watanabe Lab."
Key terms
- Thermal plasma
- Thermal plasma: among the states in which a gas is given heat or electrical energy so that electrons move freely, the one that is hot and highly reactive.
- Nanoparticles
- Nanoparticles: particles of metals, ceramics, and other materials with diameters from a few nanometers to several tens of nanometers.
- In-flight melting
- In-flight melting: a method in which raw-material granules pass through a high-temperature gas and are melted instantly while in flight.
- Multiphase AC arc
- Multiphase AC arc: a method that creates thermal plasma between multiple electrodes by applying AC voltages to them in a switched combination.
NewsLab news
A student receives a Presentation Encouragement Award at the Kyushu Branch Meeting of the Japan Society of Plasma Science and Nuclear Fusion Research
A master's student receives an Excellent Presentation Award at the master's mid-term presentations of the chemical engineering division
A doctoral student receives an Excellence Award at the 35th Annual Meeting of MRS-Japan
A master's student receives the Best Award in a contest at the Annual Meeting of the Japan Society of Plasma Science and Nuclear Fusion Research
A master's student receives a Student Award at an international conference on plasma surface engineering
ResearchResearch themes
Thermal plasma is highly reactive at high temperatures, and it can be used both to synthesize new materials and to treat hazardous waste. The lab's aim is to unravel the unknown phenomena occurring inside plasma and to develop new methods.
*Illustrative imageNumerical simulation of thermal plasma
The lab analyzes the distributions of temperature and velocity in plasma through numerical simulation. With analyses that take the chemical reactions in plasma into account, it is developing new plasma torches and nanoparticle synthesis systems.
*Illustrative imageGlass production by in-flight melting
The lab studies a technique for instantly melting granules made from fine glass raw-material powder while they pass through a high-temperature gas. It develops processes using inductively coupled plasma and multiphase arcs, aiming to reduce the energy used for melting.
*Illustrative imageDevelopment of multiphase AC arcs
The lab is developing a new method that creates thermal plasma in the space between multiple electrodes by applying AC voltages to them in a switched sequence. Its features are high energy conversion efficiency and the ability to produce plasma of a large volume.
*Illustrative imageDevelopment of water plasma torches
The lab has developed a DC-discharge plasma torch that generates an arc using only water vapor, and uses it to decompose fluorocarbons (CFCs). Because cooling water is blown directly into the discharge region and turned into plasma gas, the torch needs no gas such as argon.
MembersFaculty
The members of the Fluid Process Engineering Lab consist of faculty, visiting faculty, doctoral, master's, and undergraduate students, technical staff, and administrative assistants.As of 2026
- ProfessorTakayuki Watanabe
- Associate ProfessorManabu Tanaka
- Associate ProfessorTsuyoshi Yamamoto
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Plasma torch auxiliary heating in electric arc furnace British Steel 1985” European Coal and Steel Community / CC BY-SA 4.0 (cropped)
- Numerical simulation of thermal plasma: “Energy Arc (central electrode of a Plasma Lamp)” Blaise Frazier aka PiccoloNamek / CC BY-SA 3.0 (cropped)
- Glass production by in-flight melting: “Kiln melting glass at high temperatures 08” Warmglow / CC BY-SA 4.0 (cropped)
- Development of multiphase AC arcs: “Electric arc” Khimich Alex / Public domain (cropped)
- Development of water plasma torches: “Plasma Cutter” Tim Drivas / CC BY 3.0 (cropped)
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