Dökme yük gemisi için Rejeneratif Organik Rankine Çevrimi Sisteminin Dekarbonizasyon Üzerindeki Etkisinin Araştırılması

Year 2022, Volume: 8 Issue: 2, 90 - 103, 01.12.2022

Samet Gürgen , İsmail Altın

https://doi.org/10.52998/trjmms.1086444

Abstract

Deniz taşımacılığı dünya ticaretinde çok önemli bir paya sahiptir. Ancak, küresel sera gazı emisyonları üzerinde kaçınılmaz bir etkiye sahiptir. Bu nedenle yakıt tüketiminin ve egzoz emisyonlarının azaltılması için büyük bir motivasyon bulunmaktadır. Organik Rankine Çevrimi (ORC) teknolojisine dayalı atık ısı geri kazanım sistemleri, yakıt tüketimini ve egzoz emisyonlarını azaltmak için önemli bir potansiyele sahiptir. Bu çalışmada, bir dökme yük gemisi için rejeneratif ORC atık ısı geri kazanım sisteminin optimizasyonu gerçekleştirilmiştir. Çok amaçlı optimizasyon, güçlü ve yeni bir algoritma olan Gri Kurt Optimizasyon algoritması kullanılarak gerçekleştirilmiştir. Geminin tasarım ve tasarım-dışı çalışma koşulları dikkate alınarak termoekonomik değerlendirmeler yapılmıştır. Ayrıca, optimize edilmiş ORC sisteminin dekarbonizasyon üzerindeki etkisi araştırılmıştır. Sonuçlar, yıllık ortalama Wnet'in 372.78 kW olarak hesaplandığı göstermiştir. Yıllık ortalama yakıt tasarrufu ve yıllık ortalama CO2 azaltımı ise sırasıyla 522.83 tyakıt/yıl ve 1628.09 tCO2/yıl olarak hesaplanmıştır. Elde edilen bulgular, gemilerde RORC sisteminin kullanılmasının, artan emisyon kısıtlamaları ve çevresel kaygılar için umut verici bir çözüm olduğunu göstermiştir.

Keywords

Organik Rankine çevrimi, atık ısı geri kazanımı, çok amaçlı optimizasyon, yakıt tasarrufu, CO2 emisyonu

Thanks

Bu çalışma Global Maritime Conference (GMC'21) da sunulmuş ve özet olarak yayımlanmıştır.

Investigation of the Effect of the Regenerative Organic Rankine Cycle System on Decarbonization for a Bulk Carrier

Abstract

Shipping has a very important share in world trade. However, it has an inevitable effect on global greenhouse gas emissions. Therefore, there is a great motivation for the reduction of fuel consumption and exhaust emissions. Waste heat recovery systems based on Organic Rankine Cycle (ORC) technology have a significant potential to reduce fuel consumption and exhaust emissions. In this study, the optimization of the regenerative ORC was carried out for a bulk carrier. Multi-objective optimization was performed using a Grey Wolf Optimization algorithm that is a powerful and novel algorithm. Thermo-economic evaluations were carried out by considering the design and off-design working conditions of the ship. In addition, the impact of the optimized ORC system on decarbonization was investigated. The results showed that the annual average Wnet was determined as 372.78 kW. The annual average fuel saving and the annual average CO2 reduction were calculated as 522.83 tfuel/year and 1628.09 tCO2/year, recpectively. The findings indicated that using the RORC system on ships is a promising solution for increasing emission restrictions and environmental concerns.

Keywords

Organic Rankine Cycle, waste heat recovery, multi-objective optimization, fuel saving, CO2 emission

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