Journals / Demiryolu Mühendisliği / 2026 / Sayı: 24

Fuel Consumption and Emission Reduction through Multi-Engine Configuration in Diesel-Electric Locomotives

Dizel-Elektrik Lokomotiflerde Çoklu Motor Konfigürasyonu ile Yakıt Tüketimi ve Emisyon Azaltımı

Kadir Aydın(OSTİM TEKNİK ÜNİVERSİTESİ)0000-0002-1583-9605
İlhami Pektaş(Anadolu Raylı Ulaşım Sistemleri Kümelenmesi (ARUS))0009-0001-7090-0202
Pages
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Publication Date
2026-03-19
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The study presents recommendations regarding the optimization of energy management strategies, integration potential with hybrid systems, and next-generation low-emission locomotive technologies.

📌 3 Key Takeaways

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Objective & Hypothesis:Diesel-electric locomotives remain the backbone of freight and passenger transportation on non-electrified railway lines worldwide.
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Key Findings & Data:The research evaluates genset locomotives, mainline multi-engine locomotives such as the Bombardier TRAXX DE ME (Class 245), and hybrid diesel-electric systems in detail.
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Conclusion & Impact:The study presents recommendations regarding the optimization of energy management strategies, integration potential with hybrid systems, and next-generation low-emission locomotive technologies.
🔬Design:Review & Systematic Survey
📍Scope:2053 Verileri
⚙️Variables:Dizel-elektrik lokomotif · Çoklu motor konfigürasyonu · Genset lokomotif

Abstract

Diesel-electric locomotives remain the backbone of freight and passenger transportation on non-electrified railway lines worldwide. The operation of a single large diesel engine at partial loads in conventional diesel-electric locomotives results in low efficiency, excessive fuel consumption, and high emission levels. This study comprehensively examines the effects of multi-engine configurations, where multiple smaller diesel engines replace a single large diesel engine, on fuel consumption and emission reduction. The research evaluates genset locomotives, mainline multi-engine locomotives such as the Bombardier TRAXX DE ME (Class 245), and hybrid diesel-electric systems in detail. According to the literature review results, multi-engine configurations can achieve 20-50% fuel savings, up to 80% reduction in NOx emissions, up to 90% reduction in particulate matter (PM) emissions, and up to 37% reduction in greenhouse gas emissions compared to conventional single-engine locomotives. Furthermore, multi-engine systems have been found to reduce maintenance costs, increase operational flexibility, and improve locomotive availability rates. Furthermore, the applicability of multi-engine configuration to the Turkish railway sector is evaluated in the context of the current state of Turkish State Railways (TCDD)’s diesel locomotive fleet, Turkish Rail System Vehicles Industry Inc. (TÜRASAŞ)’s domestic manufacturing capacity, and Türkiye’s 2053 net-zero emission target. The study presents recommendations regarding the optimization of energy management strategies, integration potential with hybrid systems, and next-generation low-emission locomotive technologies.

Özet

Dizel-elektrik lokomotifler, dünya genelinde elektrifikasyon altyapısı bulunmayan demiryolu hatlarında yük ve yolcu taşımacılığının temel unsuru olmaya devam etmektedir. Geleneksel dizel-elektrik lokomotiflerde kullanılan tek büyük dizel motorun kısmi yüklerde düşük verimle çalışması, aşırı yakıt tüketimi ve yüksek emisyon değerlerine neden olmaktadır. Bu çalışmada, tek büyük dizel motor yerine birden fazla küçük dizel motorun kullanıldığı çoklu motor (multi-engine) konfigürasyonlarının yakıt tüketimi ve emisyon azaltımı üzerindeki etkileri kapsamlı bir şekilde incelenmiştir. Araştırma kapsamında; jeneratör seti (genset) lokomotifleri, Bombardier TRAXX DE ME (Class 245) gibi ana hat çoklu motorlu lokomotifler ve hibrit dizel-elektrik sistemler detaylı olarak değerlendirilmiştir. Literatür taraması sonuçlarına göre, çoklu motor konfigürasyonları ile geleneksel tek motorlu lokomotiflere kıyasla %20-50 yakıt tasarrufu, NOx emisyonlarında %80, partikül madde (PM) emisyonlarında %90 ve sera gazı emisyonlarında %37'ye varan azaltımlar sağlanabilmektedir. Ayrıca, çoklu motor sistemlerinin bakım maliyetlerini düşürdüğü, operasyonel esnekliği artırdığı ve lokomotif kullanılabilirlik oranını yükselttiği belirlenmiştir. Ayrıca, çoklu motor konfigürasyonunun Türkiye demiryolu sektöründe uygulanabilirliği; TCDD dizel lokomotif filosunun mevcut durumu, TÜRASAŞ yerli üretim kapasitesi ve 2053 net sıfır emisyon hedefi çerçevesinde değerlendirilmektedir. Çalışma, enerji yönetim stratejilerinin optimizasyonu, hibrit sistemlerle entegrasyon potansiyeli ve gelecek nesil düşük emisyonlu lokomotif teknolojileri hakkında öneriler sunmaktadır.

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Cite This Article

Aydın, K., Pektaş, İ. (2026). Fuel Consumption and Emission Reduction through Multi-Engine Configuration in Diesel-Electric Locomotives. Demiryolu Mühendisliği, Sayı: 24. https://doi.org/10.47072/demiryolu.1892069

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