Analysis of the Effect of Biodiesel B20 and B100 on the Degradation of Viscosity and Total Base Number of Lubricating Oil in Diesel Engines with Long-Term Operation Using ASTM D2896 and ASTM D445-06 Methods

Abstract

Based on its characteristics, biodiesel has a higher density, viscosity, and acidity level than diesel fuel, so it has a disadvantages in terms of lubricants especially in the long run. The impact, it can decrease the kinematic viscosity of the lubricant, a decrease in the total base number, and the impact by decreased of the engine performance. This research aims to determine the characteristics of lubricants from the use of biodiesel (B20 and B100) related to the kinematic viscosity of lubricants and Total Base Number (TBN). The testing method were used ASTM D2896-15 and ASTM D445-06 standard. The study used two units Kubota RD 65 DI-NB diesel engines with a cylinder volume of 376 cc. The rotary speed of the machine was keep constant at 2200 rpm and were operated for 300 hours non-stop. Moreover, the sampled was carried out every multiple of 100 hours. Based on the research results, the quality of lubricants with B100 fuel is no better than lubricants with B20 fuel. B100-fueled lubricants have kinematic viscosity values at temperatures of 40 °C and 100 °C and has lower TBN values than B20-fueled lubricants.

Technical Implications of the Use of Biofuels in Agricultural and Industrial Compression-Ignition Engines with a Special Focus on the Interactions with (Bio)lubricants

“…They also lead to higher dilution of biodiesel than diesel [153]. Based on the studies and experiments [154,155], it is possible to conclude that biodiesel has other destructive effects in addition to changes in lubricating oil viscosity. Diluting lubricating oil with aged biodiesel and its degradation products (oxidized biodiesel) can cause interaction with zinc dialkyldithiophosphate (ZDDP) anti-wear additives in lubricating oil, which lead to increased engine wear [153].…”

Extraction of Green Grass Jelly Leaves as An Alternative Biopolymer in Polymer Flooding

“…Many studies in the petroleum sector use ASTM D445 as a standard in measuring viscosity (Huang, Li, Bao, Wang, & Wang, 2020;Mousavi, Zeinali Heris, & Estellé, 2021;Sentanuhady et al, 2020). ASTM D445 viscosity standard measurement by determining the kinematic viscosity of transparent and turbid petroleum products using a glass capillary viscometer, which measures the flow time of liquids flowing by gravity, is useful for estimating optimal storage, handling, and operational conditions for petroleum products and non-petroleum (Khuu et al, 2019).…”

The Recent Progress of Natural Sources and Manufacturing Process of Biodiesel: A Review

“…Thus, solving these issues should be the main focus for future researchers or other people interested in this topic. Moreover, the metals and chemical compounds contaminants in biodiesel became the concern of researchers since in the real time operation, the time and long term operational have affect to the emissions and the engine performance [105,106].…”