Sualtı Doğalgaz Boru Hatlarındaki Sızıntıların Eğri Uydurma Tabanlı Alınan Sinyalin Gücü Yöntemiyle Konumlandırılması

Yıl 2020, Cilt: 10 Sayı: 1, 99 - 108, 15.01.2020

Yiğit Mahmutoğlu , Kadir Türk

https://doi.org/10.17714/gumusfenbil.574052

Öz

Doğalgaz rezervleri dünyanın belirli bölgelerinde
bulunduğundan bu önemli enerji kaynağı talep merkezlerine ağırlıklı olarak
sualtı boru hatları yardımıyla iletilmektedir. Sualtı doğalgaz boru hatları
başta iç/dış korozyon olmak üzere doğa ve insan kaynaklı bazı nedenlerden
dolayı delinip denize gaz sızdırabilir. Bu nedenle sualtı doğalgaz boru
hatlarındaki (SDBH) sızıntıların tespiti ve konumlandırılması enerji
güvenliğini sağlama ve çevre kirliliğinin önüne geçmede önemli bir yere
sahiptir. Bu çalışmada, SDBH’lerde ortaya çıkabilecek deliklerin yerlerinin
belirlenebilmesi amacıyla sinyal güçlerine eğri uydurmaya dayalı bir yöntem
önerilmiştir. Önerilen yöntemin konumlandırma başarımı, zamanla değişen çok
yollu bir sualtı akustik kanalının ve gerçek hayatta kullanılan bir sualtı
doğalgaz boru hattının parametrelerinin kullanıldığı benzetim çalışmalarıyla
analiz edilmiştir. Sayısal sonuçlar, bu zamanla değişen çok yollu sualtı akustik
kanalı için sızıntıların alıcı sayısı, ortam gürültüsü ve deniz dalga
yüksekliğine bağlı olarak kilometrelerce uzaktan konumlandırılabileceğini
göstermiştir. 

Anahtar Kelimeler

Konum Tespiti, Pasif Akustik, Sızıntı, Sualtı Doğalgaz Boru Hattı

Destekleyen Kurum

TÜBİTAK

Teşekkür

Bu çalışma TÜBİTAK 2211-A Yurtiçi Doktora Burs Programı tarafından desteklenmektedir.

Locating Leakages In The Underwater Natural Gas Pipelines Using Curve Fitting Based Received Signal Strength Method

Öz

Since natural gas
reserves are located in certain regions of the world, this important energy
resource is transported to demand centers mainly by means of underwater
pipelines. Underwater natural gas pipelines can be punctured and so the natural
gas may leak into the sea due to especially internal/external corrosion and nature
and man-made based reasons. For this reason, detecting and locating leakages in
the underwater natural gas pipelines has an important role in ensuring energy
security and preventing environmental pollution. In this study, a curve fitting
to signal strength based method is proposed for positioning the leakages. The
localization performance of the proposed method is analyzed by simulation
studies using a time-varying multipath underwater acoustic channel and
parameters of a real life underwater natural gas pipeline. Numerical results
show that for the time-varying multipath underwater acoustic channel leakages
can be located with low errors from kilometers away depending on receiver
number, ambient noise and sea wave height.

Anahtar Kelimeler

Localization, Passive Acoustic, Leakage, Underwater Natural Gas Pipeline

Kaynakça

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