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Nano yakıtlı CRDI bir motorda püskürtme avansının motor performansı ve egzoz emisyonlarına etkisi

The effect of injection advance on engine performance and exhaust emissions in a nano fuel CRDI engine

Güven Demirtaş(YOZGAT BOZOK ÜNİVERSİTESİ)0000-0001-5341-001X
Sayfa
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Yayın Tarihi
2026-09-03
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

NO emisyonu nanopartikül katkılı B95O5B2O3100 ile +4 KMA’da %19.63 azalmıştır.

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Amaç & Hipotez:Dizel motorlar, dayanıklı olması ve termik verimliliğinin yüksek olması sayesinde farklı sektörde hala kullanılmaya devam etmektedir.
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Temel Bulgular & Veri:Petrol türevli yakıtların sınırlı rezervleri, yakıt fiyatlarındaki istikrarsızlıklar ve çevreye saldıkları kirletici gazların olumsuz etkileri nedeniyle çevreye daha az zararlı olan alternatif yakıtlara ilgi artmaya devam etmektedir.
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Sonuç & Katkı:NO emisyonu nanopartikül katkılı B95O5B2O3100 ile +4 KMA’da %19.63 azalmıştır.
🔬Tür:Deneysel Tarla Denemesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Biyodizel · nanopartikül · avans

Özet

Dizel motorlar, dayanıklı olması ve termik verimliliğinin yüksek olması sayesinde farklı sektörde hala kullanılmaya devam etmektedir. Petrol türevli yakıtların sınırlı rezervleri, yakıt fiyatlarındaki istikrarsızlıklar ve çevreye saldıkları kirletici gazların olumsuz etkileri nedeniyle çevreye daha az zararlı olan alternatif yakıtlara ilgi artmaya devam etmektedir. Biyodizel karışım halinde dizel motorlarda kullanılabilen alternatif ve sürdürülebilir bir dizel yakıtıdır. Bu çalışmada, hacimsel olarak %95 biyodizel, %5 n-oktanol (B95O5) referans yakıtı ile 100 ppm dozda B2O3 nanopartikül katkısı ilave edilerek B95O5B2O3100 test yakıtı hazırlanmıştır. B2O3 nano parçacıkların yakıt içerisindeki homojen dağılımlarını sağlamak için ultrasonik karıştırıcı kullanılmıştır. Deneysel çalışma için CRDI sistemine sahip bir dizel motor kullanılmıştır. Test çalışmasına başlanmadan önce ölçüm cihazları ve motor ayarları kontrol edilmiştir. Deneysel çalışmada ilk olarak B95O5 referans yakıtı test edilmiştir. Öncelikle standart avansta (Sta) ardından geç enjeksiyon (Sta-2 KMA), daha sonra erken eken enjeksiyon (Sta+2KMA) ve (Sta+4KMA)’da deneyin ilk aşaması tamamlanmıştır. B95O5B2O3100 yakıtı da aynı şartlarda test edilmiştir. Motor performans parametreleri ve egzoz emisyonlarındaki % değişimler referans yakıta (B95O5 Sta) kıyasla şöyledir; Motor momenti B2O3 katkılı yakıt ile +4 KMA’da %11.26 artmıştır. Fren özgül enerji tüketimi ve fren termik verimi B95O5 ile +4 KMA’da sırasıyla %20.85 ve %23.72 iyileşmiştir. Egzoz gaz sıcaklığındaki (EGT) maksimum artış, B95O5B2O3100 ile standart avansta %7.15’tir. HC emisyonlarındaki maksimum azalma, B95O5B2O3100 ile +4 KMA’da yaklaşık olarak %15.28’dir. En yüksek CO2 emisyonu B95O5B2O3100 ile +2 KMA’da %5.74 yüksek iken, en yüksek CO2 emisyonu B95O5 ile -2 KMA’da %3.85 düşüktür. NO emisyonundaki maksimum azalma B95O5 ile +4 KMA’da %27.99’dur. NO emisyonu nanopartikül katkılı B95O5B2O3100 ile +4 KMA’da %19.63 azalmıştır.

Abstract

Diesel engines are widely used due to their high thermal efficiency and durability. Due to the limited reserves of petroleum-derived fuels, instabilities in fuel prices, and the adverse effects of pollutant gases emitted into the environment, interest in more environmentally friendly fuels continues to increase. Biodiesel is an alternative and sustainable diesel fuel that can be used in diesel engines as a blend.. In this study, a reference fuel of 95% biodiesel and 5% n-octanol by volume (B95O5) was prepared. A test fuel (B95O5B2O3100) was also produced by adding 100 ppm B2O3 nanoparticles, dispersed using an ultrasonic mixer. Experiments were conducted on a common rail direct injection (CRDI) diesel engine. The B95O5 fuel was tested at standard injection timing (Sta), retarded timing (Sta 2o CA), and advanced timings (Sta+2o CA and Sta+4o CA). The B95O5B2O3100 fuel was tested under identical conditions. Compared to baseline, B95O5 improved brake specific energy consumption, brake thermal efficiency, and NO emissions. Meanwhile, B95O5B2O3100 enhanced engine torque, exhaust gas temperature, HC and CO2 emissions. Advancing injection timing by +4o CA improved both engine performance and exhaust emissions.

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Bu Makaleye Atıf Yap

Demirtaş, G. (2026). Nano yakıtlı CRDI bir motorda püskürtme avansının motor performansı ve egzoz emisyonlarına etkisi. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 18. https://doi.org/10.28948/ngumuh.1948847

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