A5042757283- Thermochemical Biomass Conversion Processes
- Coal Combustion and Slurry Processing
- Advanced Combustion Engine Technologies
- Iron and Steelmaking Processes
- Polymer crystallization and properties
- Coal and Coke Industries Research
- Catalysts for Methane Reforming
- Carbon Dioxide Capture Technologies
- Coal Properties and Utilization
- Combustion and flame dynamics
- Coal and Its By-products
- Polymer Nanocomposites and Properties
- Thermal and Kinetic Analysis
- Chemical Looping and Thermochemical Processes
- Geomechanics and Mining Engineering
- Berry genetics and cultivation research
- Rheology and Fluid Dynamics Studies
- Lignin and Wood Chemistry
- Material Properties and Processing
- Plant pathogens and resistance mechanisms
- Combustion and Detonation Processes
- Granular flow and fluidized beds
- Industrial Technology and Control Systems
- Mechanical Behavior of Composites
- Ecology and Conservation Studies
Kyoto University
2007-2024
Central Research Institute of Electric Power Industry
2013-2024
Graduate School of Health Care Sciences, Jikei Institute
2024
Kyoto Katsura Hospital
2008-2024
Tokyo Institute of Technology
1988-2005
While biomass has been co-fired at pulverized coal boilers in power stations for a high-efficiency use of biomass, there have few reports on the co-gasification using entrained flow gasifiers, which are adopted major integrated gasification combined cycle plants. In this work, two bituminous coals, cedar bark, and mixtures bark were gasified with carbon dioxide high temperature drop tube furnace. As result, distinguished synergy between to improve their reactivity was not observed through...
CO2 emission control is significant issue as a countermeasure for global warming problem. Utility companies are required to reduce from thermal power stations and make various efforts improve efficiency utilize carbon neutral fuels such biomass fuels. CCS (CO2 capture storage) technology regarded one method emission, but great decrease of efficiency. As amount fossil fuel on the globe so restricted, it important keep high possible, in order valuable effectively. This project plans develop...
To develop accurate models for the numerical simulation of coal combustion field, detailed experimental data using laser techniques, which can figure out basic phenomena in a flame, are necessary. In particular, soot is one important intermediate substances flame. This paper first world reporting particle size distributions The spatial distribution primary diameter were measured by combination time-resolved induced incandescence (TiRe-LII) method and thermophoretic sampling (TS) method. was...
The molecular weight (MW) dependence of the linear crystal growth rate (G) and influence supercooling on relationship between MW G at a given were studied for poly(ethylene succinate). spherulite was measured over wide range temperature. It had bell-shape with maximum (G max) that showed remarkable dependence. max mainly consequence o (pre-exponential factor rate). increased first up to 3000 then decreased. attributed transition from extended chain crystallization (ECC) folded (FCC)....
The molecular weight (MW) dependence of the primary nucleation rate (I) was studied for poly(ethylene succinate). measured in a wide range temperatures. It has bell shape with maximum (I max ) that showed remarkable MW dependence. I decreased first to about 3000 and then increased. attributed transition from intermolecular intramolecular nucleation. expressed as ∝MWα. value α negative unity positive
CO2 emission control is a significant issue as countermeasure for global warming problem. Carbon dioxide capture and storage technology regarded one of the methods reducing emission, but it leads to drop in thermal efficiency. It important maintain efficiency high possible an efficient use limited fossil fuel resources. CRIEPI started joint project with Kyushu university develop "High-efficiency oxy-fuel IGCC", integrated coal gasification combined cycle power generating system capture,...
To cope with global warming problem, utility companies are required to reduce CO2 emission from pulverized coal fired power plants. Japanese advancing various measures improve plant thermal efficiency and promote utilization of biomass as a fuel. In Europe America, capture storage (CCS) technology is regarded one effective approach, demonstration projects planned all over the world. However, introduction conventional system station causes decrease in an increase generating cost. this reason,...
Reaction kinetics of coal volatile were numerically investigated based on analyses during reaction mechanism reduction procedure in detail this paper. Computation a closed homogeneous reactor model was performed to clarify important chemical species and their pathways with evaluating the capability prediction ignition delay time concentration under wide range equivalence ratios temperatures. The large hydrocarbons such as polycyclic aromatic (PAH) that comprise portion combustion features...
Anisakiosis, also known as Anisakis larvae infestation, is an increasing parasitic infestation due to the worldwide spread of raw fish and shellfish consumption habits. We present a rare presentation intestinal intussusception preoperative diagnosis noticed it postoperatively larvae. A 43-year-old man presented emergency department with abdominal pain around umbilicus vomiting for several hours. On physical examination at presentation, he had tenderness in lower abdomen. His radiological...
In coal gasification, soot forms from volatile matter (VM) and it influences the gasification efficiency. Recently, biomass or plastic wastes with higher VM than are used for processes importance of is increasing. For predicting formation, elementary step models often used. However, defining main reaction paths difficult because include huge species reactions. this study, polyaromatic hydrocarbon formation path was analyzed via an step-like model 257 1107 reactions to understand formation....
Abstract The influence of the rheological properties on spraying behavior an adhesive polyurethane dispersion modified with different thickeners was investigated. differences in shear rheology for three kinds were found not to be representative behavior. extended fan sheets and reduced overspray water‐soluble thickener correspond a more pronounced elastic dispersion.
In order to reduce CO_2 emission from thermal power plants with keeping high efficiency, a new concept of IGCC system, namely oxy-fuel IGCC, is recently proposed. recycled in this hence the effect recycle should be clarified. study, injection on coal gasifier performance was investigated by means three-dimensional RANS-based numerical simulation. calculation gasifier, char gasification and water-gas shift reaction are important phenomena, therefore, partially active site sharing model...
オオバコ種内2型の生活史特性とその成立過程を検討するために, 京都市北東部の8集団を供試して栽培実験と発芽試験を行い, さらに, 自生地での季節消長を調査した。1) minima 型は普通型よりも全乾物重が小さく, 早く出穂し, 繁殖分配率が大きかった (Fig. 1, 2および Table 2)。また, 年間の種子生産数は, 栽培1年目では2型間に差異はなかったが, 栽培2年目では普通型が 型を大きく上回った (Table 2)。2) 普通型では, 明条件下で20℃から30℃までのいずれの温度区でも高い種子発芽率が得られた。一方, 型では25℃で種子発芽率が最大となり, 20℃では発芽速度が顕著に遅かった 3)。3) 普通型が生育する畦畔や農道では, 植生が密で, 成熟個体の死亡することが少なく, 競争が激しかった。一方, 型が生育する神社の境内では, ストレスが大きく, 乾燥した夏の掃き掃除や不定期な除草, 改修工事などの攬乱が予測不能な死亡要因として作用していた 4)。また, 出芽の時期は2型間で異なった 4)。以上のことから, オオバコ種内2型の生活史特性は,...