Abstract:
NOx emission reduction is the most commonly required one in all the researches on the vehicle engines but they are too hard to manipulate with the primary methods. The objective of this research was to determine the reason for the higher levels of NOx emissions from biodiesel fueled engines, to predict the emission of NOx, to reduce NOX emission concentrations, to reduce fuel consumption and to choose a suitable method circuits and software programming. This research includes Mechanism of NOx formation, NOx Reduction Techniques and diesel-Rk (advantage, type of engine can applying on it the company uses historical). It was determined that a change in compression ratio and engine speed caused by changes in fuel properties between diesel fuel and biodiesel might be the source of the NOx increase, Using the engine specification to get value of NOx emission was simulated in diesel-Rk software and the measured and simulation results of NOx emission were compared with the value of NOx that given from prediction equation and shows maximum error of 12%.
