%0 Journal Article
	%A P. V. Rao
	%D 2011
	%J International Journal of Aerospace and Mechanical Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 51, 2011
	%T Experimental Investigations on the Influence of Properties of Jatropha Biodiesel on Performance, Combustion, and Emission Characteristics of a DI-CI Engine
	%U https://publications.waset.org/pdf/7939
	%V 51
	%X The aim of the present research work is to investigate
the influence of Jatropha biodiesel properties on various
characteristics of a direct injection compression ignition engine. The
experiments were performed at different engine operating regimes
with the injection timing prescribed by the engine manufacturer for
diesel fuel. The engine characteristics with Jatropha biodiesel were
compared against those obtained using diesel fuel. From the
results, it is observed that the biodiesel performance and emissions
are lower than that of diesel fuel. However, the NOx emission of
Jatropha biodiesel is more than that of diesel fuel. These high NOx
emissions are due to the presence of unsaturated fatty acids and the
advanced injection caused by the higher bulk modulus (or density)
of Jatropha biodiesel
Furthermore, the possibility for reduction of NOx emissions
without expensive engine modifications (hardware) was investigated.
Keeping this in mind, the Jatropha biodiesel was preheated. The
experimental results show that the retarded injection timing is
necessary when using Jatropha biodiesel in order to reduce NOx
emission without worsening other engine characteristics. Results
also indicate improved performance with the application of
preheated biodiesel. The only penalty for using preheated biodiesel
is the increase of smoke (soot).
	%P 238 - 251