Gelombang Detonasi Marginal Campuran Bahan Bakar Hidrogen, Oksidizer Udara dan Oksigen dengan Pengencer Argon
In the combustion process, detonation wave is generated when the reaction wave coincides with the shock wave at supersonic speed. Shock wave propagated at high pressure, it would be dangerous to human if detonation accidents occur. In conditions of rich mixture or lean mixture, the detonation wave m...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/134031/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=74984 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | In the combustion process, detonation wave is generated when the reaction wave
coincides with the shock wave at supersonic speed. Shock wave propagated at high
pressure, it would be dangerous to human if detonation accidents occur. In
conditions of rich mixture or lean mixture, the detonation wave may propagate by
using one detonation cell only, this condition is usually called as detonation
marginal. By knowing the detonation limits in marginal areas, the consequences of
an accident due to detonation can be avoided or minimized. In these experiments,
various concentrations of hydrogen gas mixture with air and oxygen oxidizer is
used as the main fuel and argon added to control the reaction rate. The fuel mixture
in the circular cross section of detonation test tube is at room temperature condition
and an initial pressure of 100 kPa. The experimental results showed characteristics
of shock wave velocity and pressure on marginal detonation lower than the
Ordinary. This is seen in the case of hydrogen fuel air mixture, which the pressure
reaches 11.56 times from the initial pressure and velocity reaches 0.76 VCJ. The
ordinary detonation pressure value can reach 15-16 times from the initial pressure
and velocity approaching the value of 0.92 VCJ. The addition of argon gas into the
fuel mixture will narrow limits marginal areas as a result of a decrease in the rate
of the combustion reaction.
Keyword: Combustion, Detonation, Marginal, Reaction Wave, Shock Wave |
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