Investigation of performance and emission characteristics of waste cooking oil as biodiesel in a diesel engine
Ulusoy, Yahya and Arslan, Ridvan and Tekin, Yucel and Surmen, Ali and
Bolat, Alper and Sahin, Remzi
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Abstract
Biodiesel is one of the most popular prospective alternative fuels and
can be obtained from a variety of sources. Waste frying oil is one such
source along with the various raw vegetable oils. However, some specific
technical treatments are required to improve certain fuel properties
such as viscosity and calorific value of the biodiesel being obtained
from waste cooking oil methyl ester (WCOME). Various treatments are
applied depending on the source and therefore the composition of the
cooking oil. This research investigated the performance of WCOME as an
alternative biofuel in a four-stroke direct injection diesel engine. An
8-mode test was undertaken with diesel fuel and five WCOME blends. The
best compromise blend in terms of performance and emissions was
identified. Results showed that energy utilization factors of the blends
were similar within the range of the operational parameters (speed, load
and WCOME content). Increasing biodiesel content produced slightly more
smoke and NOx for a great majority of test points, while the CO and THC
emissions were lower.... Show more Show less