Development of next-generation chemical refrigerator based on the crystallinity control of metal salt in nanosized pores of composite sorbent
| Project/Area Number |
18H01766
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 27010:Transport phenomena and unit operations-related
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| Research Institution | Kanazawa University |
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Principal Investigator |
KUMITA Mikio 金沢大学, フロンティア工学系, 教授 (60262557)
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| Co-Investigator(Kenkyū-buntansha) |
児玉 昭雄 金沢大学, 機械工学系, 教授 (30274690)
東 秀憲 金沢大学, フロンティア工学系, 准教授 (40294889)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
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| Keywords | 金属塩複合材料 / 収着冷凍 / 結晶性金属塩 / 熱・物質移動 / 結晶性制御 |
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| Outline of Final Research Achievements |
A metal salt/aluminum composite had been proposed as a novel material for sorption chillers. This study dealt with the control of the crystallinity of metal salt and its impregnation into pores of an aluminum oxide film to maximize the water vapor sorption performance of the composite. As a result, The crystallinity of metal salt deposited on pore walls depended a great deal on the calcination temperature in the preparation process and the amount of metal salt in pores. Porous aluminum films with various structures could be created by adjusting the preparation conditions. In addition, The evaluation of the water vapor sorption characteristics of the composites and the numerical analysis of heat and mass transfer indicated that the metal salt/aluminum composite would be a promising sorbent for a high-performance chemical refrigerator.
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| Academic Significance and Societal Importance of the Research Achievements |
CaCl2／アルミニウム複合材の調製において結晶性CaCl2のナノ細孔壁への析出には焼成温度の管理が重要である。また、細孔壁界面のCaCl2は非晶化すること、細孔内添着CaCl2は単体物とは異なる水蒸気脱着挙動を示すことなど、本研究で得られた成果は、ナノ空間における金属塩の物理化学的特性の理解に重要な知見を与えると考えられる。そして、金属塩／アルミニウム複合材を組み込む高出力ケミカル冷凍機の社会実装が達成されれば、現在大量に存在する100℃以下の未利用熱の活用が可能となり、新規エネルギー投入量やCO2排出量の削減に繋がるなど、その社会的意義は大きいと考えられる。
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Report
(4 results)
Research Products
(15 results)
