| Project/Area Number |
21560846
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Earth system and resources enginnering
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| Research Institution | Yamaguchi University |
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Principal Investigator |
FUJIWARA Keiko 山口大学, 大学院・理工学研究科, 助手 (50253175)
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| Co-Investigator(Renkei-kenkyūsha) |
NAKAYAMA Noriaki 山口大学, 大学院・理工学研究科, 教授 (00164369)
NAKATSUKA Akihiko 山口大学, 大学院・理工学研究科, 准教授 (80294651)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | イオン交換 / 脱水温度 / マイクロポーラス結晶 / 排熱 / 廃熱利用 / 水和熱 |
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| Research Abstract |
Ion exchanged GTS-type titano-silicates with micro-porous structure have been prepared and their properties as water adsorbents for heat pump system have been investigated. Fine powders of Na-K mixed GTS with the mean size of 8～13φhave been prepared by the hydro-thermal method to investigated the effect of Na/ K composition. The hydration enthalpy of the water adsorption below 120℃was about 55 kJ/ mol, which was larger than the evaporation enthalpy of free H_2O at 25℃, 44 kJ/ mol. No apparent dependence on the Na/ K atomic ratio was observed. Co^<2+> exchanged Na-GTS samples were obtained by shaking Na-GTS fine powders in Co^<2+> aqueous solution. The maximum ion exchange ratio was 94%. By Co2+ exchange, the water content increased from 20. 5 to 24. 5% and the DTA peak temperature due to the dehydration was lowered from 253 to 230℃.
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