Experimental Investigation of the Effects of Adding H2/CH4 Mixture to the Engine Fueled with CNT Additive Diesel Fuel

Arslan E., Atelge M. R., Kahraman N., Ünalan S.

The 5th International Conference on Alternative Fuels, Energy & Environment (ICAFEE 2021): Future and Challenges, Kayseri, Turkey, 16 - 18 October 2021, pp.536

  • Publication Type: Conference Paper / Summary Text
  • City: Kayseri
  • Country: Turkey
  • Page Numbers: pp.536
  • Kayseri University Affiliated: Yes


In this study, it was aimed to experimentally investigate the effect of both nanoparticle contribution and

hydrogen/natural gas addition to the combustion air in diesel engine. Two different gas mixtures were added

to the combustion air in a compression ignition engine fueled with CNT nanoparticle added diesel. Gas

mixtures of 10%H2+90%CH4 and 20%H2+80%CH4 were added to the combustion air at a mass flow rate of

250 g/h. To form a diesel fuel-CNT mixture, 50 ppm nanoparticles were added to one liter of liquid fuel

and mixed with an ultrasonic mixer. Engine tests were carried out at 1500 rpm constant speed and at three

different engine loads. In-cylinder pressure, brake specific fuel consumption and exhaust emissions were

investigated under no-load, mid-load and full load (0, 20, 40 Nm) conditions. Considering the experimental

results, the addition of 10%H2+90% CH4, one of the two gas mixtures, to D+50ppmCNT increased the

cylinder pressure at all loads compared to the other gas mixture. When comparing all three engine loads for

the 10%H2+90% CH4 mixture, the maximum pressure was obtained at mid-load. When brake specific fuel

consumptions (BSFC) are evaluated, the least consumption is observed when 20%H2+80%CH4 mixture is

used. In the no-load condition of the engine, CO and HC emissions were higher for 20%H2+80% CH4

mixture and NOx lower than at 10%H2+90% CH4 mixture, while CO and NOx were higher and HC lower at

full load.