Sualtı doğalgaz boru hatlarındaki sızıntıların konumlandırılmasının zaman ve frekans seçici akustik kanalda incelenmesi

Year 2020, Volume: 26 Issue: 5, 908 - 915, 23.10.2020

Yiğit Mahmutoğlu Kadir Türk

Abstract

Önemli bir enerji kaynağı olan doğalgaz genelde sualtından da geçen doğalgaz boru hatları vasıtasıyla taşınmaktadır. Sualtı doğalgaz boru hatları korozyon ve gemi, balıkçılık faaliyetleri başta olmak üzere çeşitli nedenlerden dolayı delinebilir. Bu yüzden, sızıntıların algılanması ve konumlandırılması enerji güvenirliğinin sağlanmasında ve doğal yaşamın korunmasında önemli bir role sahiptir. Bu çalışmada, sualtı doğalgaz boru hatlarındaki sızıntıların konumlandırılması için yeni bir yöntem olarak sinyal gücü tabanlı eğri uydurma yöntemi önerilmiştir. Önerilen yöntemin performansı, gerçek bir sualtı doğalgaz boru hattının parametrelerinin ve zamanla değişen (hareketli deniz yüzeyi, sualtı akıntıları vb. nedeniyle) çok yollu ikili seçici sualtı akustik kanalının kullanıldığı benzetim çalışmalarıyla analiz edilmiştir. Nümerik sonuçlar, oldukça gerçekçi olan bu zamanla değişen çok yollu sualtı akustik kanalında sızıntıların kilometrelerce uzaktan deniz dalga yüksekliği ve ortam gürültüsüne bağlı olarak düşük hatalarla konumlandırılabileceği gösterilmiştir.

Keywords

Sualtı doğalgaz boru hattı, Pasif akustik konumlandırma, Alınan sinyal gücü, Gaz sızıntısı

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