2009 Fiscal Year Final Research Report
Establishment of the scaling laws for laser ignition and combustion of B/KNO3 pyrotechnics and their application to laser ignition thrusters
| Project/Area Number |
20760550
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Aerospace engineering
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| Research Institution | Tokyo Metropolitan College of Industrial Technology |
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Principal Investigator |
NAKANO Masakatsu Tokyo Metropolitan College of Industrial Technology, ものづくり工学科, 准教授 (90315169)
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| Project Period (FY) |
2008 – 2009
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| Keywords | レーザー推進 / レーザー着火 / マイクロ推進 |
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| Research Abstract |
The burning rates of B/KNO_3 under different low pressures were experimentally obtained to realize high performance laser ignition thrusters. The meas-ured burning rate was almost constant with the background pressure less than 0.01 MPa and it increased with increasing background pressure. The pressure exponent has a wide variation between 0 (in vacuum) and almost 1 (at atmospheric pressure), which has a sig-nificant impact on the ignition and combustion performance of B/KNO_3 propellant for space use. These data were incorporated into a laser ignition model and yielded fairly good agreement with experiments.
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