PRESENTED BY:-
P.VIJAY BHASKER REDDY.
E.MUNEENDRA

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“THE EFFECT OF OXYGEN ENRICHMENT WITH INTAKE AIR IN A DIRECT INJECTION DIESEL ENGINE FUELED WITH COTTONSEED OIL ”
ABSTRACT :-
 With the increasing demand for fossil fuels, a stronger threat to clean environment is being posed as the burning of fossil fuels is associated with dangerous emissions like CO, SOx, NOx and particulate matter, which are currently the dominant global source of emissions.
 These emissions are major causes of air pollution and hence of the environment.
 But once if we think of these reserves one day or the other they may exhaust.
 Today energy crisis is world wide because conventional forms of energy supply and consumption are causing serious economical as well as environmental problems.
INTRODUCTION:-
An engine is a device, which transforms one form of energy into another form. While transforming energy from one form to another, the efficiency of conversion plays an important role.
Normally, most of the engines convert thermal energy into mechanical work and therefore they are called “heat engines”. Heat engine is a device that transforms the chemical energy of a fuel into thermal energy and utilizes this thermal energy to perform useful work.
Thus, thermal energy is converted to mechanical energy in a heat engine.
 EXPERIMENTAL PHOTOGRAPH:-
 Fig A.1 5H.P Electrically Loaded Diesel Engine
 Fig A.2 Control Panel
TEST METHODOLOGY:-
 A number of engine tests were carried out to study the effect of oxygen enrichment with intake air. The engine was operated with diesel fuel at a constant speed of 1500 rpm. The tests were conducted in the following three phases
 In the first phase, tests were carried out with diesel oil and air corresponding to 21% oxygen.
 In the second phase, test was conducted to find out the max amount of oxygen mixed with intake air.
CONCLUSION:-
On the basis of the current experimental investigation on a four-stroke, water cooled. DI diesel engine, the following conclusions are drawn. The major results of this experiment study are as follows.
 Fuel consumption at constant injection timing increase the break specific fuel consumption by oxygen enrichment. This is due to the improvement diffusion combustion.
 The Thermal efficiency increases with oxygen enrichment condition compare with that normal level. Peak combustion efficiency occurs at 25% oxygen concentration.
 It is possible to replace fossil fuel (Diesel) with all its economic and ecological disadvantages, with bio-fuels, which are renewable.