2016 Fiscal Year Final Research Report
Measurement of isothermal adsorption / desorption rate of water vapor and clarification of mass transfer characteristics for vapor adsorbents coated on heat transfer plate
| Project/Area Number |
26420147
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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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| Research Field |
Thermal engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MORI Hideo 九州大学, 大学院工学研究院, 教授 (70150505)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 吸着 / 伝熱 / 吸着速度 / 総括物質移動抵抗 / 拡散抵抗 / 濃度境界層 / 蒸気 / 実験 |
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| Outline of Final Research Achievements |
The reaction rate of isothermal adsorption / desorption of water vapor was measured for thin film adsorbents coated on a heat transfer plate. The cantilever method and the QCM method were adopted as the measurement apparatus. We confirmed that the temperature dependence of the rate can be represented by Arrhenius plot. In addition, each water vapor transfer resistance in the concentration boundary layer on the surface of the adsorbent and the vapor diffusion in the particle was separated. We clarified that the resistance of the concentration boundary layer was negligible in vapor and that the resistance became sufficiently small when the moist air flow rate was about 0.1 m/s in adsorption or desorption process. Finally, we presented the empirical formula to predict these transfer resistances.
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| Free Research Field |
伝熱工学
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