Researching::Laboratory of Eco-Processing

Research themes

Our research is based on the following four key processes:

See the details below:

Carbon nano-tubes (CNT) created by reducing CO2 gas, photographed using a transparent electronic microscope (TEM).

Decreasing the generation of global warming gases

Concerns about global environmental problems have continued to increase. Various proposals have been offered for processing carbon dioxide.
We have proposed a new method for dissolving carbon dioxide using molten salts.
In the future, we hope to clarify the reaction mechanism and use our understanding to improve the efficiency of this reaction.

Metallic zirconium obtained by the non-electrolyte reduction of calcium, photographed using a field emission scanning electron microscope (FE-SEM).

A sophisticated material for an electrolysis condenser
made by the non-electrolyte reduction of calcium

It is known that the Ti-Zr alloy is an excellent metallic component for use in electrolysis condensers. However, many complex processes are required to smelt this alloy, so it is quite expensive to produce.
We have developed a simple process for the non-electrolytic production of a Ti-Zi alloy from mixed Ti and Zi powdered oxides using calcium. This production process,using oxidized particles, can be expected to produce an excellent condenser material with a larger specific surface area.

The result of simulating thermal dispersion when generating power using a thermoelectric module that was connected to a number of thermoelectric elements in series.

Solar power generation
incorporating thermoelectric power generation techniques

With thermoelectric power generation, we can obtain power efficiently from a relatively low temperature heat source, regardless of the scale of the facility.
At our laboratory, we are using experiments and computer simulation studies to improve power generation performance.

The sub-micron dimpled pattern on a sample aluminum surface created by Anodic oxidation. Image captured using an Scaning electron microscope (SEM).

Ordered structures on a sub-micron scale
generated by Anodic oxidation

Nano-scale porous alumina obtained by Anodic oxidation of aluminum can be converted into a highly ordered nano-structure at low cost and in a short time. It is expected that this technique will find applications in various nanotechnology fields.
At our laboratory, we aim to find applications of this technology in various fields. We are energetically pursuing the development of this technology beyond aluminum to other useful metals.

High-temperature melt flowing through non-spherical particle layer was simulated. GPGPU technology much accelerates this calculation using TESLA.

High accuracy CFD
including dispersed phase by using discrete elements

Most of the surrounding metals are produced in a molten state at more than 1000℃. In the high-temperature metallurgical materials processing, the interfacial phenomena play important role for the reduction rate and refinement efficiency.
Direct observation technology and new CFD model based on a mesh-free Lagrangian simulation are developed for predicting the characteristics of transient behavior of the melt interface.