IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684, p-ISSN: 2320-334X PP 11-17 www.iosrjournals.org International Conference on Advances in Engineering & Technology – 2014 (ICAET-2014) 11 | Page Performance of internal combustion (CI) engine under the influence of stong permanent magnetic field Vivek Ugare 1 , Ashwin Dhoble 2 , Sandeep Lutade 3 , Krunal Mudafale 4 1 Assistant Professor Sit Lonawala, India 2 Assistant Professor VNIT Nagpur 3, 4 Lecturer DBACER Nagpur ABSTRACT : The present study investigates the effect of magnetic field on the performance of single cylinder four stroke compression ignition engine. The study concentrates on the effect of magnetic field the engine performance parameters such as fuel consumption, break thermal efficiency and exhaust emissions and on fuel properties like density and calorific value. The magnetic field is applied along the fuel line. The magnetic field is applied with the help of strong permanent magnets of strength 5000 gauss. The experiments are conducted at different engine loading conditions. The exhaust gas emissions such as co, co 2 , hc and no x are measured by using an exhaust gas analyzer. With the application of magnetic field the percentage reduction in fuel consumption is about 12 %, the percentage reduction in hc and co is about 22% and 7 % respectively. The nox level in engine increases with the application of magnetic field. The percentage increase in nox is about 19%. The effect of magnetic field on percentage increase of co 2 emissions from ci engine is about 7 %. Keywords: diesel engine, strong permanent magnets, bomb calorimeter, five gas analyzer, smoke meter, I. NTRODUCTION A magnet is any material that has a magnetic field. The effect magnetic field on the biological and mechanical systems is the subject of study of interest from last fifty years. Many studies suggest that magnetic field has positive effect on the performance of the system. The study related to the effect of magnetic field on the fuel of i.c. engine is gaining importance in order to reduce the fuel consumption and the engine emissions. Since fuel of i.c. engine is a complex molecular arrangement of hydrocarbon as fuel mainly consists of hydrocarbons. The simplest of hydrocarbon is methane. The chemical composition of methane is ch 4. It has the major (90%) constituent of natural gas (fuel) and an important source of hydrogen. The greatest amount of releasable energy lies in the hydrogen atom. As an example, in octane (c 8 h 18 ) the carbon content of the molecule is 84.2%. When combusted, the carbon portion of the molecule will generate 28,515 kj/kg ofcarbon[2]. On the other hand, the hydrogen, which comprises only 15.8% of the molecular weight, will generate an amazing energy- 22,825 kj /kg of h 2 [1,2]. In the present work, it is proposed to study the effect of magnetic field on the internal combustion (ci) engine . Effect of magnetic field on fuel molecule Hydrogen occurs in two distinct isomeric forms para and ortho.it is characterized by the different opposite nucleus spins. The ortho state of hydrogen has more effective than para state for maximum complete combustion. The ortho state can be achieved by introducing strong magnetic field along the fuel line.[1,2] hydrocarbon molecules form clusters, it has been technically possible to enhance van der waals' discovery due to the application of the magnetic field, a high power, permanent magnetic device strong enough to break down, i.e. De-cluster these hc associations, so maximum space acquisition for oxygen to combine with hydrocarbon[2]. Thus when the fuel flows through a magnetic field, created by the strong permanent magnets, the hydrocarbon change their orientation (para to ortho) and molecules of hydrocarbon change their configuration, at the same time inter molecular force is considerably reduced. This mechanism helps to disperse oil particles and to become finely divided[2,21].