Environmental Engineering Reference
In-Depth Information
Effect of Biodiesel Utilization
on Tribological Properties of Lubricating
Oil in a Compression Ignition Engine
Avinash K. Agarwal and Jai Gopal Gupta
Abstract Biofuels are touted as a prime source of renewable and sustainable
energy in near future. Biofuels have evolved from
first to fourth generation. They
mainly differ in feedstock and production technologies used. Biodiesel can be
readily adopted as a partial substitute for mineral diesel in developing economies.
Transesteri
cation is an appropriate and well-established method for chemical
modi
cation of vegetable oils, which produces a suitable diesel fuel alternative
“
. Biodiesel has proved to be an engine friendly and environment
friendly substitute for mineral diesel. However, increased use of biodiesel has led to
need of investigating the effect of biodiesel on engine durability, lubricating oil as
well as hardware compatibility. The effect of biofuels and of their blends with diesel
on engine tribology is not completely understood. Use of biodiesel as replacement
fuel may lead to substantial lubricating oil dilution, because biodiesel has higher
boiling range than mineral diesel. Since fuel interacts with the lubrication oil in the
sump via fuel dilution, it is necessary to understand the impact of biodiesel on the
lubricant properties. Oil consumption in heavy-duty diesel engines lies in ranges of
0.1
Biodiesel
”
0.2 % of the total fuel consumption.
-
Keywords Biofuels
Transesteri
cation
Tribological properties
Engine wear
and durability
Wear metal measurement
Atomic absorption spectroscopy (AAS)
1 Introduction
Biofuels are touted as a prime source of renewable and sustainable energy in near
future. Biofuels have evolved from
first to fourth generation. They mainly differ in
feedstock and production technologies used. Biodiesel can be readily adopted as a
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