Investigation on the extension of flammable range and rapid heat transfer by the vortex flow and its application to the miniature power system
| Project/Area Number |
15H05509
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Thermal engineering
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥24,570,000 (Direct Cost: ¥18,900,000、Indirect Cost: ¥5,670,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
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| Keywords | 次世代小型発電システム / 渦流燃焼 / 可燃範囲 / 熱伝達 / 小型発電システム / 熱工学 / 低消費電力・高エネルギー密度 / 渦流 / 可燃限界 / 限界火炎温度 / 渦流中での限界火炎温度 / レーザー計測 / 小型高出力発電器 / 熱電素子発電 |
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| Outline of Final Research Achievements |
In this study, gaseous temperature measurements have been made on the flames propagating the vortex flow. It was found that the flame tip temperature is about 1200degC for various fuel/O2/inert mixture, which indicates that the extension of the flame propagation limits in the vortex flow is attributed to the flame temperature increase through the effects of Lewis number or pressure diffusion. The miniature power system has also developed utilizing the heat transfer enhancement by the vortex flow. As a result, over 20W output was obtained with miniature vortex combustion power system of 5^3cm3, which energy density attained 176mW/cm3. Furthermore, autonomous power system has been developed on which all electrical systems have been exerted by the part of generated power.
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Report
(4 results)
Research Products
(14 results)
