Development of high temperature sensible/thermochemical heat storage system for high efficiency solar thermal power generation
| Project/Area Number |
21K04962
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 31020:Earth resource engineering, Energy sciences-related
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| Research Institution | Niigata University |
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Principal Investigator |
Bellan Selvan 新潟大学, 自然科学系, 准教授 (50785293)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | Solar energy / Thermochemical storage / Particle reactor / Thermal energy storage / solar thermal / CSP / thermal energy storage / thermochemical storage / particle receiver |
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| Outline of Research at the Start |
The main aim of this research is to develop a prototype thermochemical storage (TCS) system that store and release energy by redox reactions at temperatures between 600°C–1000°C for higher thermal efficiency and lower electricity cost.
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| Outline of Annual Research Achievements |
To develop a lab scale thermochemical reactor/storage system and analyze thermal performance of the moving/packed bed of iron-manganese oxide particles, Fe/Mn particles with different molar ratios (2:1) and (1:3) have been synthesized. The synthesized materials were characterized by X-ray diffraction. Thermogravimetric analyzer (TGA) was used to study the reaction kinetics. Then, to obtain detailed heat transfer characteristics between the bed and heat transfer fluid to analyze reaction rate and apply shrinking core model, an 1D numerical model has been developed. Temperature distribution from the core to the outer surface of the particle and heat transfer rate have been analyzed for various operating conditions. Moreover, a kinetic analysis of the charging mode has been conducted at different heating rates to derive the kinetic equation and describe the reaction mechanism by determining the appropriate reaction model. The activation energy of iron-manganese oxide has been obtained using four isoconversion methods(KAS, OFW, Starink, Friedman) and Arrhenius plots. Furthermore, using the optimized numerical model, an upscaled receiver has been designed for solar demonstration
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Report
(3 results)
Research Products
(11 results)
