Unjuk Kerja Mesin Diesel Dengan Rasio Kompresi 21:1 Berbahan Bakar Biosolar B…

ABSTRACT Petroleum production shows a downward trend. Biodiesel is a renewable energy source that can be an alternative fuel similar to conventional (fossil) diesel oil. The use of biodiesel in diesel engines is still experiencing problems and results in the performance of diesel engines not being optimal. Several ways that can be use to improve engine performance in the use of biodiesel inclu…