Cold start ability test for diesel passenger cars using B30 and precipitation in low ambient temperatures Ihwan Haryono1,*, Muhammad Ma^ruf1, Siti Yubaidah1, Budi Rochmanto1, Hari Setiapraja1, Rizqon Fajar2, Maharani Dewi Solikhah3
1 The Centre of Technology for Thermodynamics, Engines and Propulsion (BT2MP)
Bd. 230, Puspiptek area, Setu, South-Tangerang, Banten, Indonesia, 15314
2 Center of Technology for System and Infrastructure of Transportation (PTSPT)
Bd. Teknologi 2, 3rd floor, Puspiptek area, Setu, South-Tangerang, Banten, Indonesia 15314
3Laboratory for Fuel Technology and Design Engineering (BTBRD) Bd. 480, Puspitek, Setu, South-Tangerang, Banten, Indonesia 15314
Agency for the Assessment and Application of Technology (BPPT)
Abstract
Based on the Indonesian road map on achieving the use of renewable energy, the use of 30% biodiesel (B30) has been applied nationally. B30 is a mixture of 70% diesel-30% biodiesel with mono-glyceride content of 0.5%. Determination of this value was to prevent the effects of biodiesel precipitation if exposed to low temperatures which is feared to cause filter blocking so that the vehicle difficult to start. A field test have been conducted to determine the effect of low ambient temperature on B30 precipitation and the ability of diesel vehicles to start. The test used 2 sets diesel-engine passenger vehicles, each fueled by B0, B30 from a mixture of diesel (B0) and B100 with 0.4% and 0.5% mono-glyceride. Before the test, the test vehicle was soaked for 3, 7, 14 and 21 days in an ambient temperature close to the cold flow properties of biodiesel. The results show no difference in starting time between pure diesel fueled vehicles (B0) and B30, for both 0.4 and 0.5% mono-glyceride content. All vehicles can be turn on immediately of around 1 second. The precipitation test showed a difference of precipitates filtered between B0 and B30, soaking time did not affect precipitates formed.
