Combustion and Emissions in an HSDI Engine Running on Diesel or Vegetable Oil Base Fuel with n-Butanol or Diethyl Ether As a Fuel Extender

D. C. Rakopoulos, C. D. Rakopoulos, R. Papagiannakis, E. Giakoumis, S. Karellas, G. Kosmadakis