1. HOME
  2. Energy
  3. Thermal Engineering
  4. Environment

Research on chemical looping hydrogen production equipment using calcium ferrite

研究画像

I am studying hydrogen production. In order to realize hydrogen society, reduction of hydrogen production cost is a challenge today. So we focused attention on the chemical looping process. Calcium ferrite is immobilized in a reactor and hydrogen production by oxidation reduction by gas makes it possible to achieve high efficiency. In this research, we manufacture gas switching hydrogen production equipment, when reducing calcium ferrite, methane gas flows in, and when calcium ferrite is oxidized, water vapor is flowed in. I’m evaluating hydrogen production amount.

Co-gasification Reaction Kinetics of Biomass and Coal

Research and development on co-gasification technology of coal and biomass has been promoted as a more efficient energy use of biomass. In the gasification process, char produced by pyrolysis of the sample. The char and the gasification reaction rate of gasifying agent is rate-limiting. Therefore, it becomes a factor in determining the reaction rate of the whole of the gas furnace, it is important to clarify the gasification rate of coal char and biomass char. However, reports comparing the gasification reaction rate of the coal and biomass are not yet sufficient, and examination of the gasification reaction rate of the char of a mixture of coal and biomass has not been much done. In this study, I calculate the gasification reaction rate from thermogravimetric analysis in the gasification reaction of coal and biomass, and I considering that the mixing of coal and biomass impacted on gasification reaction rate.

研究画像

Heat storage effect of LiBr microcrystalline slurry

研究画像

In the course of the study on LiBr -H2O absorption heat pump, we found a method to generate LiBr crystal fine-particle slurry in a supersaturated state. We evaluated the performance in order to take advantage of the LiBr crystal fine-particle slurry as a heat storage medium. LiBr crystal fine-particle slurry had a very high thermal storage density than LiBr solution. LiBr crystal fine-particle slurry was found to have a large water vapor absorption rates by dissolving crystals when absorbing water vapor.

Investigation on fermentation thermal behavior of organic waste composting

It's generally known that heat by fermentation occurs by the composting process of biomass resources. The temperature obtained by heat of fermentation is the very small price as the energy by 70-80 ℃ in composting process. So it’s recently considered using to agricultural industries that don’t need hotness. But the efficient collection and using technology are not established. Improvement of a rising temperature and rate of temperature rise of compost heat of fermentation and a heat collection with heat transfer to other things are considered in this research.

研究画像

Methane synthesis by microwave plasma

研究画像

With recent energy problems and environmental problems, we are aiming to realize a society using hydrogen energy. However, reality is that it is costly because the infrastructure for supplying hydrogen is not prepared. Therefore, methane attracts attention, because supply infrastructure is prepared, and easy-to-handle. In this research, we are aiming at high efficiency of methane synthesis using microwave plasma which showed various applications such as decomposition of tar and synthesis of carbon nanomaterials.

Optical Emission and Mass Spectra Observations during Hydrogen Combustion in Atmospheric Pressure Microwave Plasma

The present inventors found that plasma can be generated at low power and atmospheric pressure by irradiating activated coke with microwaves.We have demonstrated various applications such as being effective for tar decomposition up to now using this plasma.
In this study, we investigated ammonia formation reactivity by atmospheric pressure non-catalytic direct plasma reaction of nitrogen and hydrogen using this microwave plasma.

研究画像

Spouted bed with plasma enhanced technology in the application of pharmaceuticals

研究画像

The main research is about plasma technology. Plasma technology in the spouted bed, that with several advantages of the high transfer rate of heat and mass, generation of high bulk temperature efficiently. The medicine granulation process in a spouted bed with plasma treatment will enhance the mix between the pharmaceutical additives and drug powder, that can be called as plasma pharmaceuticals process. However, there was no plasma reactor in the field of pharmaceuticals. The effect of the processing conditions on the particle surface characteristic will be investigated, to the continuously pharmaceutical device and process will be designed in the study.

Study on the particle reforming using a spouted bed plasma reactor

Various effects such as surface modification treatment, cleaning and sterilization can be given by subjecting the object to plasma treatment. However, in the conventional device, it is difficult to plasma treatment on particles having a 3-dimensional structure. Therefore, in this study, we developed a spouted bed type plasma reactor that combines techniques spouted bed capable of homogeneous contact of particles and gas and a plasma jet spraying plasma, and plasma conditions and fluidization conditions give the particle surface modification experimental investigation on the influence is carried out.

研究画像

Radiation properties of clinker dust particle cloud

研究画像

The cement industry is a highly energy consuming industry, and energy saving is required. For energy conservation, it is effective to lower the clinker firing temperature as much as possible, but if the temperature is too low, quality deterioration will occur. Accordingly, highly accurate temperature measurement of clinker during firing is required, but since clinker dust floating in the furnace has a large influence on measurement accuracy, establishment of a method for correcting the influence of dust is required. Therefore, in this study, we measured the radiation properties of cement clinker dust particle group by spectroscopic measurement and investigated radiation absorption and scattering characteristics.

Radiation heat transfer properties in hot model of clinker particle group

The cement industry has a high proportion of energy expenditure to production cost.So the cement industry is energy-intensive industry. The firing process is the most energy-consuming process in its production process. In the firing step, it is heated at a high temperature of 1450 ° C. So Accurate temperature measurement in the firing process leads to energy saving. In this research, Spectroscopically measure the radiation properties of clinker dust particles and Consider radiation absorption and scattering properties

研究画像

Heat Storage and Vapor Absorption Characteristics of LiBr Crystal Fine-Particle Slurry

研究画像

From finiteness of the issue of with the CO2 global warming andthe fossil fuel,the energy utilization becomes more and more important in future. By the exhaust heat collection use, utilization ofthe warm water exhaust heat becomes the important problem inparticlar. Therefore I paid my attention to the absorption-type heat pump which could reuse low temprerature warm water exhaust heat. In this study, Ianalyze an absorption-type heat pump theoretically and am intended that I do it with the guidance of the study of the heigher-performance absorption type heat pump.

Dry shrinkage characteristics of ceramic thin films

I perform a study on dry shrinkage stress of the ceramic film. The outbreak such as a crack during a dry process, breaking, the sled becomes the problem in the manufacturing process of ceramic. These defects are causes to lower yield for dry constrictive heterogeneity by Moisture content distribution.
Therefore I repeat an underlying hot wind experiment and perform it to clarify the influence of the dry condition to give transformation behavior to occur in the dry process of the ceramic film in this study and perform the examination from the both sides of an experiment and the analysis in the thing analyzing by the finite element method.

研究画像

Upgrading of low rank carbonaceous resources by thermal treatment

研究画像

In the present, recycling utilization of unused resources is needed to reduce consumption of fossil fuel and CO2 emission. Our aim is to use low rank carbonaceous resources such as low rank biomass and waste material with thermal treatments that are pyrolysis and gasification. We research the new technical development about co-utilization of biomass and coal. And evaluating the char produced by chemical reaction under various conditions by changing temperature, pressure and atmosphere.

Effects of Coexisting Components in Gasification Yield Gas on Adsorption Performance of Sulfides into Activated Coke

Sulfides into the product gas when gasifying biomass and coal must remove for corrosion of the gas turbine and environmental pollution. In general,wet desulfurization process is performed, and development of a simpler dry desulfurization process is expected. In this study, we propose dry desulfurization process by carbon adsorbent. We conducted a sulfide desulfurization test on active coke derived from coal, and evaluated the effect of coexisting gas contained in gasification yield gas and analysis by fitting method.

研究画像

Explication of nitrogen behavior in the time of hydrothermal treatment of the organic waste

研究画像

Development of high-efficient methane fermented technology by hydrothermal treatmentDisposal of garbage by methane fermented technology is watched in recent years. But, the present technology is not still efficient. There is a way of "hydrothermal treatment" as the means of the efficiency. "Hydrothermal treatment" is the preprocessing technology by hydrolytic action of water of high temperature and high pressure. This study clear how the influences of the hydrothermal treatment on efficiency of the methane fermentation.

Mechanical separation process of W / O emulsion using a rotation type cross flow separation technique in cutting waste liquid

Cross-flow separation using a ceramic filter has been shown to be able to efficiently separate particulates, and mechanical separation by a swing type cross flow technique, which is difficult to form a cake, has also been newly developed. Cutting waste water contains fine particles, water, water-soluble oil, etc. If it is possible to separate not only fine particles but also water-soluble oil at the same time by swirl type cross flow technology, not only can the separation process be shortened but also this oil is treated It can also be expected to reduce the cost.

研究画像

Study about high efficiency drying of high moisture content organic matter using siccative

研究画像

Dryness experiment of mud mixed siccative Using sewage mud as the energy is expected. However, sewage mud has more than 80% water, and need a huge energy and the costs to dry. To promote drying rate is connect to reduce energy consumption. Sewage mud Added siccative has many cracks on it’s surface and evaporation of water becomes early. But optimum hasn’t been cleared. So, in this research, I change the conditions. For example dry condition, size, amount of the siccative and temperature. And consider what’s the best condition of dry.