Comparison of engine performance and emissions for conventional petroleum diesel fuel and diesel-ethanol blends

Erkal, Gül
Ethanol is an environmental friendly alternative diesel fuel that has received significant attention both as a possible renewable alternative fuel and as an additive to existing petroleum-based fuels. Beyond simply representing an additional fuel supply, ethanol exhibits several advantages when compared to existing petroleum fuel. The objective of this work is to investigate experimentally the effects of using different blends of specified percentages of ethanol on the engine performance and emissions and to compare it with that of conventional diesel fuel. Tests will be done on the ‘‘Engine Test Laboratory’’ of the Turkish Tractor Factory (TTF) using a fourcylinder, turbocharged and naturally aspirated, DI diesel engines. Engine performance parameters such as engine speed, torque, power, fuel consumption will be measured. At the same time, the engine emissions including particulate matter, unburned hydrocarbons, carbon monoxide, and NOX will also be recorded.


Experimental investigation of use of canola oil as a diesel fuel
Özdemir, Ali; Bayka, Ahmet Demir; Department of Mechanical Engineering (2008)
In this study, canola oil has been selected for the test on a diesel engine and its suitability as an alternative fuel has been examined. To decrease the high viscosity of canola oil, the effect of temperature on viscosity has been researched. Then the fuel delivery system has been modified to heat canola oil before injecting the oil into the combustion chamber. Also, ethanol has been tested as an additive by blending with canola oil. An experimental setup has been installed according to standards to carry ...
Validation of MISES Two-Dimensional Boundary Layer Code for High-Pressure Turbine Aerodynamic Design
ANDREW, PHILIP; Kahveci, Harika Senem (ASME International, 2009-07-01)
Avoiding aerodynamic separation and excessive shock losses in gas turbine turbomachinery components can reduce fuel usage and thus reduce operating cost. In order to achieve this, blading designs should be made robust to a wide range of operating conditions. Consequently, a design tool is needed-one that can be executed quickly for each of many operating conditions and on each of several design sections, which will accurately capture loss, turning, and loading. This paper presents the validation of a bounda...
Experimental investigation of an oil loss mechanism in internal combustion engines
Sezer, Ahmet; Dursunkaya, Zafer; Department of Mechanical Engineering (2010)
Oil loss mechanisms in internal combustion engines have been subject to many researches. By the help of technological developments effects of several problems due to oil losses were examined and tried to be reduced. Environmental pollution and performance loss are important issues that oil consumption in internal combustion engines contribute. In this study the effects of individual parameters on the oil accumulation in 2nd land crevice of internal combustion engines, volume between top compression rings, w...
Analysis of regenerative cooling ın liquid propellant rocket engines
Boysan, Mustafa Emre; Ulaş, Abdullah; Department of Mechanical Engineering (2008)
High combustion temperatures and long operation durations require the use of cooling techniques in liquid propellant rocket engines. For high-pressure and high-thrust rocket engines, regenerative cooling is the most preferred cooling method. In regenerative cooling, a coolant flows through passages formed either by constructing the chamber liner from tubes or by milling channels in a solid liner. Traditionally, approximately square cross sectional channels have been used. However, recent studies have shown ...
Numerical and experimental investigation Of two-phase flow distribution through multiple outlets from a horizontal drum
Pezek, Enis; Yeşin, Ahmet Orhan; Department of Mechanical Engineering (2006)
In CANDU reactors, under normal operating conditions, the inlet headers collect and distribute single-phase liquid flow (heavy water) to the fuel cooling channels via the feeders. However, under some postulated loss of coolant accidents, the inlet headers may receive two-phase fluid (steam/water) and the fluid forms a stratified region inside the header. To predict the thermalhydraulic behaviour of headers for the reactor safety analysis, the two-phase flow distribution within the headers and through the fe...
Citation Formats
G. Erkal, “Comparison of engine performance and emissions for conventional petroleum diesel fuel and diesel-ethanol blends,” M.S. - Master of Science, Middle East Technical University, 2010.