İçten yanmalı bir motorda ftalosiyanin -benzin karışımı bir yakıt için ölü hâl sıcaklıklarının motor performansına etkisinin incelenmesi

Öz

Bu deneysel çalışmada, Ftalosiyanin katkılı benzin karışımlarının kıvılcım ateşlemeli (SI) bir içten yanmalı motorun termodinamik performansı üzerindeki etkileri, Ekserji analizi metodolojisi kullanılarak incelenmiştir. Çalışma, ekserji hesaplamalarının temel metodolojik hassasiyetini oluşturan Ölü Hâl Sıcaklığındaki (T0) değişimlerin, yeni formüle edilen Ftalosiyanin katkılı yakıt dizisi (B100, PG5, PG15, PG25) altındaki egzoz gazlarındaki ekserji değişim, motordaki ekserji kayıpları gibi motor performansı üzerindeki etkileri incelenmiştir. Deneyler 2200 dev/dak motor hızında gerçekleştirilmiş ve T0 değerlerinin 273 K'den 298 K'ye yükseltilmesinin sonuçları analiz edilmiştir. Elde edilen bulgular, %25 Ftalosiyanin içeren PG25 karışımının, incelenen tüm koşullarda en düşük ekserji kayıplarını ve en yüksek termodinamik optimizasyonu sağladığını ortaya koymuştur. PG25'in ekserji yıkım oranı, saf benzin B100'e göre 273 K'de yaklaşık %42 daha düşüktür (9.55 kW'a karşılık 13,57 kW), bu da katkı maddesinin yanma sürecindeki tersinmezlikleri etkili bir şekilde azalttığını göstermektedir. Metodolojik açıdan, T0'da ki artış, yanma ürünlerinin (N₂, O₂, H₂O) ekserjisini düşürürken CO ve CO2’nin ekserjilerinde artış meydana gelmiştir. Sonuç olarak, Ftalosiyanin katkısının, özellikle PG25 konsantrasyonunda, içten yanmalı motorun ekserjetik performansını saf benzine kıyasla önemli ölçüde iyileştirdiği ve sürdürülebilir motor optimizasyonları için umut verici bir potansiyel taşıdığı tespit edilmiştir.

Anahtar Kelimeler

• : Ekserji
• Ftalosiyanin
• Alternatif yakıtlar
• İçten yanmalı motor

Investigation of the effect of dead state temperatures on engine performance for a phthalocyanine-gasoline blend fuel in an internal combustion engine

Öz

In this experimental study, the effects of phthalocyanine-added gasoline blends on the thermodynamic performance of a spark-ignition (SI) internal combustion engine were investigated using exergy analysis methodology. The study investigated the effects of changes in Dead State Temperature (T0), which constitutes the main methodological sensitivity of exergy calculations, on engine performance, such as the exergy change in the exhaust gases and exergy losses in the engine under the newly formulated phthalocyanine-added fuel sequence (B100, PG5, PG15, PG25). Experiments were conducted at 2200 rpm, and the results of increasing T0 values from 273 K to 298 K were analyzed. The findings revealed that the PG25 blend containing 25% phthalocyanine provided the lowest exergy losses and the highest thermodynamic optimization under all investigated conditions. The exergy destruction rate of PG25 is approximately 42% lower than that of pure gasoline B100 at 273 K (13.57 kW versus 9.55 kW), demonstrating that the additive effectively reduces irreversibilities in the combustion process. From a methodological perspective, an increase in T0 reduces the exergy of the combustion products (N₂, O₂, and H₂O), while the exergies of CO and CO2 increase. In conclusion, it was determined that the phthalocyanine additive, especially at the PG25 concentration, significantly improves the exergetic performance of the internal combustion engine compared to pure gasoline, offering promising potential for sustainable engine optimization.

Anahtar Kelimeler

• Effect of Dead-State Temperature on Phthalocyanine–Gasoline Fuel Performance

Kaynakça

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