Using life cycle assessment, we explore the conditions under which a fleet-wide blending of OME 3–5 with fossil diesel can reduce environmental impacts in terms CO 2 , NO x and soot emissions.

A single-cylinder marine diesel engine was modified to be operated in reactivity controlled compression ignition (RCCI) combustion mode. The fueling system upgraded a common rail fuel injection system. Natural gas (NG) used as port injection, and diesel/sunflower methyl ester biodiesel mixture for direct injection. fraction of the changed from 0% (B0; 100% diesel) 5% (B5) 20% (B20) while keepin...

This paper reports a study into the fuel, economic, energy, and environmental indicators of diesel engine operating in diesel-gas cycle. It was established that injection timing has significant impact on indicators, particular emissions harmful substances with exhaust gases. The gas investigated at crankshaft speeds n=1,300 rpm n=1,600 rpm. At these speeds, measurements were carried out three d...

The objective of this study was to test the performance of diesel engine using diesel B3 mixed with crude palm oil in ratios of 95 : 5, 90 : 10, and 85 : 15, respectively, and to compare the results with diesel B3. According to the tests, they showed that the physical properties of the mixed fuel in the ratio of 95 : 5 were closest to those of diesel B3. The performance of the diesel engine tha...

A comprehensive thermodynamic study is conducted of a diesel based Combined Heat and Power (CHP) system, based on a diesel engine and an Organic Rankine Cycle (ORC). Present research covers both energy and exergy analyses along with a multiobjective optimization. In order to determine the irreversibilities in each component of the CHP system and assess the system performance, a complete paramet...

The purpose of this study is to determine the optimum intake valve closing time of a large diesel engine having lower fuel consumption and lower NOx emission. The performance simulation has been conducted for this purpose, and a phenomenological combustion model is verified by experimental data of heat release rate and NOx emission in order to enhance the prediction quality of the performance s...

The primary objective of this project is to develop an improved understanding of the factors affecting the toxicology of particulate exhaust emissions. Diesel particulate matter is a known carcinogen, and particulate exhaust emissions from both light-duty and heavy-duty vehicles are toxic. Particulate matter emissions from three light-duty vehicles in five different configurations [a Honda Acco...

Vegetable oils are renewable in nature and can be directly used as fuels in diesel engines. However, their high viscosity and poor volatility lead to reduced thermal efficiency and increased hydrocarbon, carbon monoxide and smoke emissions. Transesterification is one of the methods by which viscosity could be drastically reduced and the fuel could be adopted for use in diesel engine. This Ester...

Standalone diesel systems have been widely used on Malaysian islands due to the isolated locations of the islands. Nevertheless, the high diesel prices and the high cost of transporting diesel to islands cause the use of standalone diesel systems to be uneconomical. This study analyzes the feasibility of implementing PV (photovoltaic) systems as alternatives to standalone diesel systems by cons...