--The value of energy that supports (changes) humans, industries, regions, and the future--
Professor, Strategic Innovation Research Center, Teikyo University Yuji Tanuma
In 1980, he completed the master's course at the Department of Mechanical Engineering, Graduate School of Graduate School Engineering, Tohoku University. For a long time thereafter, he was involved in the development and design of turbines for power generation in industry. He received his Ph.D. in Engineering from Tohoku University in 1995. Since then, in parallel with his development and design work, he has been in charge of lectures on fluid machinery, mechanical CAD and design, high-speed fluid dynamics, and energy mechanical system design at Kogakuin University, Tokyo Metropolitan University, and Yokohama National University, and became a Visiting Professor of Yokohama National University in 2010. From April 2010 Teikyo University Joint Program Center Professor From 2013 to 2015, he concurrently served as a technical advisor at the Research Promotion Bureau of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), where he cooperated in industrial use promotion projects for the K computer and the post K computer. In 2015 Japan he became president of the Gas Turbine Society of Japan, and in April 2017 he Professor the Teikyo University Center for Strategic Innovation Research. Teikyo University Graduate SchoolGraduate School of Science and Engineering and Faculty of Science and Engineering additional post Department of Mechanical and Precision SystemsProfessor 。
To summarize this report ...
Although technological innovation in renewable energy is progressing rapidly, "stable supply" is still an issue because it is affected by the weather and climate.
For example, the optimal operational image of the entire power generation system is important for designing a single blade of a power generation turbine.
From the image of society as a whole, it is most important to optimize all power generation methods such as solar power, wind power, hydropower, geothermal power, woody biomass, thermal power, and nuclear power for energy supply.
The potential of renewable energy is higher in rural areas. When combined with a supercomputer center, it is possible to supply energy and foster a highly knowledge-intensive industry in rural areas.
Pursuing overall optimal design is also an act of deeply grasping our society itself. From the energy aspect, we would like to contribute to the realization of a new sustainable society that the SDGs advocate.
Energy and technology
Today, there is a major shift around the world from traditional energies such as coal and natural gas to renewable energies. Since the adoption of the Paris Agreement in 2015, Japan is no exception and technological innovation is progressing rapidly. However, there are still major issues with "stable supply." Power generation from variable renewable energies such as solar and wind is highly dependent on weather and weather. According to the recent time-series data on the power supply and demand situation released by Tokyo Electric Power Company Holdings, Inc., the peak power demand starts around 9 o'clock and continues until after 19:00. In fine weather, solar power can handle this peak until after 16:00, but at the peak of demand until the dinner time after that, the output of the pumped hydropower stored by thermal power at night is increased.
Weekly electricity supply and demand results from Monday, August 5, 2019 to Sunday, August 11, 2019 (4) Unit [10,000 kWh] Created from the data of TEPCO Power Grid, Inc. "FY2019 Supply and Demand Results" (4)
According to European power research institutes, in order to make the best use of electricity from renewable energy, it is necessary to back up with a stable power supply with a power generation capacity of almost the same scale. At present, thermal power generation is the main backup power source worldwide, just as thermal power generation supplements the windless time zone in Germany, where the use of wind power is advancing. That is why it is desired to increase the number of renewable energy power generation systems that can provide a stable supply of biomass and geothermal energy.
Future simulation
My area of expertise is fluid mechanics. After studying mechanical engineering at university, I have been working on the development and design of steam turbines for power generation such as thermal power, nuclear power, and geothermal power for 30 years in the heavy electric department of Toshiba Corporation. I am mainly conducting research useful for turbine blade design using numerical simulation of flow. We also need structural mechanics to handle the strength and reliability of machines and mechanics to predict vibrations, so we have a team of multiple experts. In the past, we have been trying to improve the performance and reduce the power generation cost in increasing the capacity of systems such as nuclear power and thermal power that exceed 1000 MW. Currently, we are also focusing on research in this field because improving the performance and reducing costs of small and medium-sized steam turbines for renewable energy systems are technical issues.
However, from the perspective of the entire power generation system and the entire power supply network, the steam turbine is a component, and the blades are just that component. The efficiency and life cycle cost of the entire power generation system will vary depending on the overall configuration of the turbine power generation system, the operation method, and the operation of the power supply network. It's the same as the performance of the same car varies from person to person. That is why power generation systems must take into account the planning, design, manufacturing, construction / installation, operation and maintenance of the entire ene
