EFFECT OF USE OF LIQUEFIED NATURAL GAS INSTEAD OF DIESEL IN HEAVY COMMERCIAL VEHICLES ON FUEL CONSUMPTION

Year 2024, Volume: 32 Issue: 1, 1204 - 1214, 22.04.2024

Bekir Barış Erçelik , Bahadır Doğan

https://doi.org/10.31796/ogummf.1388761

Abstract

In this study, the performance of a heavy commercial vehicle has been experimentally investigated in the case of an engine with diesel and liquefied natural gas (LNG) fuel. During the tests, a 338-kW motor with Euro VI norms is used in both vehicles. The vehicles with a total weight of 41000 kg were subjected to free deceleration from 85 km/h to 20 km/h and acceleration from take-off to 85 km/h on a straight road without slope. Besides, the average fuel consumption costs of the vehicles used on a total route of 263.4 km consisting of 164.3 km of motorways, 44.4 km of rural roads, and 54.7 km of urban roads were calculated. According to the results, the fuel cost for 100 km of an LNG-fueled vehicle was calculated as 1003.58 TL and for a diesel vehicle as 1359.32 TL. Even if the predicted first sale cost of the LNG-fueled vehicle will be 30% more expensive, it is understood that the 27% fuel saving is a significant result for a long-distance vehicle.

Keywords

Diesel, Liquefied natural gas, LNG, Fuel consumption, Fuel economy

AĞIR TİCARİ ARAÇLARDA DİZEL YERİNE SIVILAŞTIRILMIŞ DOĞAL GAZ KULLANIMININ YAKIT TÜKETİMİNE ETKİSİ

Abstract

Bu çalışmada, ağır ticari araç sınıfında yer alan bir çekicinin performansı dizel ve sıvılaştırılmış doğal gaz (LNG) yakıtlı bir motora sahip olması durumunda deneysel olarak incelenmiştir. Testler sırasında her iki çekicide Euro VI normlarına sahip 338 kW gücünde motor kullanılmıştır. Araçlar toplam 41000 kg ağırlıkta eğimsiz düz bir yolda kullanılarak 85 km/h hızdan 20 km/h hıza serbest yavaşlama ve kalkıştan 85 km/h hıza ulaşana kadar hızlanma testlerine tabi tutulmuştur. Ayrıca 164,3 km’si otoyol, 44,4 km’si kırsal yol ve 54,7 km’si şehir içi yol olmak üzere toplam 263,4 km’den oluşan bir güzergâhta kullanılan araçların ortalama yakıt tüketim maliyetleri hesaplanmıştır. Sonuçlara göre, LNG yakıtlı aracın 100 km için yakıt maliyeti 1003,58 TL dizel aracın ise 1359,32 TL olarak hesaplanmıştır. LNG yakıtlı aracın ilk satış maliyetinin %30 daha pahalı olacağı öngörüldüğünde bile elde edilmiş olan %27 oranındaki yakıt tasarrufunun uzun yol kullanılan bir araç için kayda değer bir sonuç olduğu anlaşılmaktadır.

Keywords

Dizel, Sıvılaştırılmış Doğal Gaz, LNG, Yakıt Tüketimi, Yakıt Ekonomisi

Supporting Institution

BMC Otomotiv Sanayi ve Ticaret Anonim Şirketi

Thanks

Yazarlar bu çalışmaya olan destekleri için BMC Otomotiv Sanayi ve Ticaret Anonim Şirketi’ne teşekkür etmektedir.

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