KAJI EKSPERIMENTAL MODEL KEBOCORAN PIPA ALIRAN DUA FASE AIR-UDARA MENGGUNAKAN ANALISA PENURUNAN TEKANAN
Two phase flow in a pipe gives a different flow pattern and charateristic of inter-phase slip. The flow pattren can be identified with the fluctuation of pressure reduction. Leakage detection should determines the charatristic of flow pattern before a point of the leakage is identified. Leakage dete...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2011
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/89764/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=52240 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | Two phase flow in a pipe gives a different flow pattern and charateristic
of inter-phase slip. The flow pattren can be identified with the fluctuation of
pressure reduction. Leakage detection should determines the charatristic of flow
pattern before a point of the leakage is identified. Leakage detection of two phase
flow is more complicated involving phase distributions in the pipe and the
location of the leakage around the pipe. Form of leakage that was studied has a 7
mm for diameter and in radial position (bottom, side, and top of the pipe).
This research uses two pressure differential tranducers which installed on
the upstream side (before the leakage) and the dowsntream (after the leakage)
with a distance is 400 mm. Fluctuation of the pressure seduction signal was
recorded by using acquisition data and prosessed by using Digital Signal
Procesing(DSP) and Fast Fourier Transform (FFT) to produce the Power
Spectrum Density (PSD).
The result of this research shows that the pattern of the fluctuation of
pressure reduction signal on the upstream and downstream side clearly changed
and different, while the leakage occured at the bottom, side, and top of the pipe of
plug flow, slug flow and stratified flow. |
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