JEMS Maritime Sci. 2019; 7(3): 196-211 | DOI: 10.5505/jems.2019.69672

Ballast Water Treatment System Integration and Life Cycle Cost Analysis for Dry Bulk Carrier

Mesut Tokuþ
Yildiz Technical University, Naval Architecture And Maritime Faculty, Istanbul, Turkey

The ships use ballast water system in order to maintain their stability according to load conditions. Ballast water that is taken to ships’ ballast tank contains various organism. These organisms may become invasive species when they have the chance to reproduce in the new ecosystem they are going to. These harmful organisms affect the ecology, economy and human health in regions where they go. For this reason, international organizations have been set standards and criteria related to ballast water management. IMO (International Maritime Organization) has D1 and D2 standarts related to ballas water trematment received in the International Convention for the Control and Management of Ship’ Ballast Water and Sediments.
According to the criteria taken by IMO, ballast water treatment systems have been examined under three main topics; mechanical, physical and chemical. Selection criteria have been established in agreement with the methods examined and ballast water treatment system has been selected for a sample dry cargo vessel with respect to these criteria. The integration of the selected UV + filtering system to the sample dry bulk carrier has been carried out. Besides, life cycle cost elements have been determined for the UV + filtering ballast water treatment system, cost structure has been formed and cost analysis has been carried out. The risks and uncertainties related with the life cycle costs of the product have been defined. The approximate cost of the system was found as €400.000 and when cost breakdown was analyzed the biggest cost was found as the investment cost.

Keywords: Balast water, balast water treatment, UV + filtration, life cycle cost analysis

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Kuru Yük Gemisi Balast Suyu Arýtma Sistemi Entegrasyonu ve Yaþam Döngüsü Maliyet Analizi

Mesut Tokuþ
Yýldýz Teknik Üniversitesi, Gemi Ýnþaatý Ve Denizcik Fakültesi, Ýstanbul, Türkiye

Gemiler yük durumlarýna göre stabilitelerini korumak için balast suyu sistemlerini kullanýrlar. Gemilerin balast tanklarýna alýnan balast sularý çeþitli organizmalar barýndýrýr ve bu organizmalar gittikleri yeni ekosistemde çoðalma þansý bulduklarýnda istilacý tür haline gelebilirler. Bu zararlý organizmalar gittikleri bölgelerde ekolojiyi, ekonomiyi ve insan saðlýðýný etkilemektedir. Bu sebepten dolayý uluslararasý kuruluþlar balast suyu yönetimi ile ilgili standartlar ve kriterler oluþturmuþtur. IMO (International Maritime Organization)’nun Gemi Balast Sularý ve Sediment Kontrolü ve Yönetimi Uluslararasý Sözleþmesi’nde almýþ olduðu balast suyu arýtýmý ile ilgili D1 ve D2 standartlarý bulunmaktadýr.
IMO’nun getirmiþ olduðu kriterlere göre geliþtirilen balast suyu arýtma yöntemleri mekanik, fiziksel ve kimyasal olmak üzere üç ana baþlýkta incelenmiþ, seçim kriterleri oluþturulmuþ ve bu kriterlere göre örnek kuru yük gemisine balast suyu arýtma sistemi seçilmiþtir. Seçilmiþ olan UV+filtreleme sisteminin, örnek kuru yük gemisine entegrasyon çalýþmasý yapýlmýþtýr. Ürünün yaþam döngüsü maliyetleriyle ilgili risk ve belirsizlikler tanýmlanmýþ, yaþam döngüsü maliyet unsurlarý belirlenmiþ ve maliyet analizi yapýlmýþtýr. Sistemin yaklaþýk maliyeti 400.000 € olarak bulunmuþ olup, maliyet kýrýlýmý incelendiðinde en büyük maliyetin yatýrým maliyeti olduðu bulunmuþtur.

Anahtar Kelimeler: Balast suyu, balast suyu arýtýmý, UV+filtreleme, yaþam döngüsü maliyet analizi

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