Influence Of Injection Pressure On The Performance And Emissions Of A Dual Fuel Engine

G.Amarendar Rao1*, Dr.A.V.S.Raju 2 , Dr.K.Govinda Rajulu 3 , C.V.Mohan Rao 4

1 Guru Nanak Engineering College, Hyderabad.

2 Department of Mechanical Engineering, JNT University, Hyderabad-500085.

3  Department of Mechanical Engineering, JNT University, Anantapur

4  University College of Engineering, Kothagudem-507321.



The conventional fuels, petrol and diesel for internal combustion engines, are getting exhausted at an alarming rate. Further, these fuels cause serious environmental problems as they release toxic gases into the atmosphere at high temperatures and concentrations. Some of the pollutants released by the internal combustion engines are HC, CO, NO, smoke and particulate matter. In view of this and many other related issues, these fuels will have to be replaced, completely or partially, by less harmful alternative and eco-friendly fuels for the internal combustion engines.

At low engine load of 20%, at an injection pressure of 180 bar, the brake thermal efficiency was found to be 13.5% on diesel fuel mode, and reduced to 9.1% on dual-fuel mode with 50% LPG energy. When the fuel injection pressure was increased to 220 bar, the corresponding values were recorded to be 13.2% and 8.8%. The brake specific fuel consumption was measured to be 0.6017 kg/KWh on diesel fuel mode, and increased to 0.8971 kg/KWh on dual-fuel mode with 50% LPG energy, under the same operating conditions.

Key Words: Dual-Fuel, Diesel, Emissions, Injection Pressure, LPG, and Performance.


International eJournal of Mathematics and Engineering

Volume 2, Issue 4, Pages: 1240 - 1249