Compression ignition engine performance and emissions: An experimental study on the impact of aqueous ammonia, hydrogen, and diesel fuel blends

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Sarıtaş M., Kül V. S., Akansu S. O., Sinkala H.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.137, ss.679-688, 2025 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 137
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.ijhydene.2025.05.121
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Sayfa Sayıları: ss.679-688
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Erciyes Üniversitesi Adresli: Evet

Özet

In this study, experiments are carried out using aqueous ammonia, hydrogen, and diesel fuels in a compression ignition engine. A heavy-duty diesel engine with a cylinder volume of 11 L is used as the test engine. Experiments are conducted at four different torque levels: 25 %, 50 %, 75 %, and 100 %, where 300 Nm represents full load. The engine operates at a constant speed of 660 rpm. Initially, neat diesel is used, followed by blends containing 10 wt% and 20 wt% aqueous ammonia. Hydrogen is also added through the intake manifold at 1 bar pressure, supplying 10 % of the total energy content of each mixture. Aqueous ammonia addition increases in-cylinder pressure and improves thermal efficiency. The highest thermal efficiency is observed with A20D80 (20 wt% ammonium hydroxide) at 39.18 %. Thermal efficiencies for A10D90, A10D90H10, A20D80H10, D100, and D100H are 34.26 %, 32.83 %, 31.67 %, 29.21 %, and 28.34 %, respectively.