| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
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| Outline of Final Research Achievements |
Some gas concentrators work with a "pressure swing adsorption process." If water vapor absorbs to the gas adsorption column which packed zeolite, the gas adsorption performance will fall substantially. In this research, a small NMR coil is inserted into gas adsorption column. Using small coil can measure spatial water distribution for a short time quantity. Four small NMR coils were inserted in the filling layer, and the NMR signal was acquired. When the small NMR coil was used, it turned out that the low amount of moisture of 0.5 - 1 wt% is also quantitatively measurable.
In order to analyze gas flow, oxygen concentration and temperature fields of the gas and zeolite in two zeolite columns at an adsorption-type oxygen concentrator, theoretical analysis was conducted. Time-dependence changes of gas velocity, oxygen concentration, and gas and zeolite temperatures were analyzed numerically.
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