An experimental investigation on performance and emissions of a single cylinder dual fuel Diesel-CNG engine combined with EGR
Journal Title: International Journal of Automotive Engineering and Technologies - Year 2014, Vol 3, Issue 3
Abstract
Natural gas plays an important role as an alternative fuel for gasoline and diesel engines. It has a promising future especially with the world crisis in fuel and the lower prices of natural gas compared to the prices of gasoline and diesel fuels. It can be used as a sole fuel in spark ignition engines because it has nearly similar properties as gasoline, but in diesel engines it is used as a main fuel while the diesel fuel is injected to the combustion chamber as a pilot fuel to be an ignition source. This paper investigates the performance of a small dual fuel engine where a single cylinder, four stroke water cooled diesel engine is converted to run on a dual fuel of diesel and compressed natural gas (CNG). An exhaust gas recycling system is used to introduce two ratios of EGR (Exhaust gas recirculation) to the engine. Effects of percentage of natural gas content and EGR ratio on engine performance and emissions are investigated for different engine loads. Based on the obtained experimental results, it can be concluded that the total reduction in engine thermal efficiency increases as the ratio of the used natural gas increases. A maximum reduction of about 5 % in engine efficiency is recorded when 80% of diesel fuel is replaced by natural gas to deliver the same engine power. Also, NOx emissions are decreased while CO is increased with utilization of EGR.
Authors and Affiliations
Mohamed S. Attia*| Mansoura University, Mansoura, Egypt, Ahmed A. Abdel-Rehim| Benha University, Shoubra Faculty of Engineering, Cairo, Egypt., Osama A. Badr| The British University in Egypt, Sherouqe City, Egypt, Salah H. El Emam| Mansoura University, Mansoura, Egypt
Keywords
Related Articles
- EP ID EP3925
- DOI -
- Views 450
- Downloads 23
Investigation of the Effect of Using Biodiesel Diesel Engine Fuel System Injectors
In this study, currently used as a fuel in diesel engines instead of diesel fuel, biodiesel from renewable energy sources is used, the mass loss due to wear of diesel engines, injectors, injector opening pressure of diam...
MFFNN and GRNN Models for Prediction of Energy Equivalent Speed Values of Involvements in Traffic Accidents
Accident reconstruction is a scientific study field that depends on analysis, research and drawing. Scientific reconstruction of related traffic accident on computer eliminates making decisions depending on initiative or...
Metallic Shell Parametric Study for Crush Behavior
The shell structures are the choice for structural application due to their weight to cost ratio. They are widely used in energy absorption in case of crash and impact events. The shells are widely used in automotives, n...
Performance and exhaust emissions of a spark ignition engine using G-Series and E20 fuels
In this research paper, performance and exhaust emissions of a spark ignition (SI) engine (XU7JP/L3) is presented. A gasoline-ethanol blend (E20) and G-Series fuel, of GS1 and GS2, which is a mixture of gasoline, ethanol...
Development of Test Methodology to Reveal Effects of Changes in Damping Capacity of Damper on ABS Braking Performance
This paper aims to develop ABS test methodology for determining the effects of changes in damping capacity of shock absorber on ABS braking performance of a passenger vehicle. For this aim, the performance tests of ABS a...