INVESTIGATION OF THE EFFECTS OF THE USING BIODIESEL AND BIODIESEL/DIESEL FUEL BLENDS ON COMBUSTION, ENGINE PERFORMANCE, AND EXHAUST EMISSIONS IN A DIESEL ENGINE


Soysal C., Şahin Z., Durgun O.

ULUSLARARASI KATILIMLI 24. ISI BİLİMİ VE TEKNİĞİ KONGRESİ (ULIBTK’23), Ankara, Türkiye, 6 - 08 Eylül 2023, cilt.1, ss.275-287

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Ankara
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.275-287
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

In the present study; firstly, biodiesel was produced by the transesterification method from refined corn oil.

After the biodiesel production, effects of the using neat biodiesel and different biodiesel/diesel fuel blends (BDFBs) on

combustion, engine performance, and exhaust emissions were experimentally investigated in a single-cylinder diesel

engine. Experiments were carried out for neat diesel fuel (NDF), neat biodiesel, and five different BDFBs such as (5,

10, 15, 20, 50; v/v) % under full load and at nine engine speeds such as (750, 1000, 1250, 1500, 1750, 2000, 2250,

2500, and 2750) rpms. By evaluating these data, the effects of different ratios of biodiesel on engine combustion,

performance parameters, and exhaust emissions at different speeds have been investigated and examined comparatively

for both each other and NDF. At the end of this study, it has been determined that using of biodiesel slightly reduces

the effective power and effective efficiency, but it increases significantly the specific fuel consumption (BSFC). It has

been observed that using biodiesel increases the BSFC by an average of 3-20%. On the other hand, it has been

determined that using of biodiesel significantly reduces CO and soot emissions, and increases HC emissions and CO2.

It is also determined that the selected BDFBs and neat biodiesel increase the cylinder pressures in all selected operating

conditions. Cylinder temperature values increase up to (10-15)% biodiesel ratios, and after these ratios, they start to

decrease. The use of biodiesel has not shown significant changes in heat release rate (HRR) values.