Effect of Ferrofluid on the Performance and Emission Patterns of a Four-Stroke Diesel Engine

F Daneshvar,K Mobini,N Jahani,M B Shafii

doi:10.1155/2011/529049

Abstract

Experimental tests were carried out to investigate the effects of adding water-based ferrofluid to diesel fuel in a diesel engine. These effects included the combustion performance and exhaust emission characteristics of the diesel engine. To this end, emulsified diesel fuels of 0, 0.4, and 0.8 ferrofluid/diesel ratios by volume were used in a four-stroke diesel engine, operating at 2200 rpm. The results indicate that adding ferrofluid to diesel fuel has a perceptible effect on engine performance, increasing the brake thermal efficiency relatively up to 12% and decreasing the brake-specific fuel consumption relatively up to 11% as compared to diesel fuel. Furthermore, from the analysis of gaseous species of engine exhaust, it was found that NOxemissions were lower than that of diesel fuel while the CO emissions increased. In addition, it was found that nanoparticles can be collected at the exhaust flow using a magnetic bar.

Highlights

In recent years, the concept of using water-diesel emulsion to reduce undesirable emissions and fuel conservation in compression ignition engines has been an active area of research
Studies have shown that using emulsion fuels in internal combustion engines is an effective method for the reduction of nitrogen oxides (NOx), soot, and particulate emission [4,5,6], In addition, it was found that adding water to diesel fuel can lead to reduction of heat flux, metal temperatures, and the thermal loading of combustion chamber components [7]
Experimental measurements and analysis were conducted on a four-stroke diesel engine to investigate the effects of adding water-based ferrofluid to diesel fuel

Summary

Introduction

The concept of using water-diesel emulsion to reduce undesirable emissions and fuel conservation in compression ignition engines has been an active area of research. Studies have shown that using emulsion fuels in internal combustion engines is an effective method for the reduction of NOx, soot, and particulate emission [4,5,6], In addition, it was found that adding water to diesel fuel can lead to reduction of heat flux, metal temperatures, and the thermal loading of combustion chamber components [7]. Studies have shown that nanosized energetic metals and boron particles (with dimensions less than 100 nanometers) possess desirable combustion characteristics such as high heats of combustion and fast energy release rates. Because of their capability to enhance performance, various metals have been introduced in solid propellant formulations, gel propellants, and solid fuels [9]. Nanosized particles can be dispersed into high-temperature zones for direct oxidation reaction, rapid energy release, and enhanced propulsive performance with increased density impulse

Methods

Findings

Discussion

Conclusion