Determining the Thermodynamic Properties of Fuel Blends from those of their Components For Air-Fuel Models of IC Engines

The paper presents an Excel-based procedure for determining the coefficients in the polynomials that describe the thermodynamic properties of fuel blends. The procedure is meant for use in conjunction with air-fuel computer models of internal combustion engines. It enables such models to deal with fuel blends just as they deal with pure fuels without modifying the main computer program. To obtain the mixture properties, the procedure applies the ideal-gas mixture relationship, which is already inherent in the formulation of existing air-fuels models. Excel has been chosen as computational platform for developing the procedure because of its simplicity and wide availability. The procedure is applied to determine the coefficients for binary mixtures of gasoline-ethanol, gasoline-hydrogen, and methane-hydrogen.

[1]  Michael Bargende,et al.  Calculating the thermodynamic properties of burnt gas and vapor fuel for user-defined fuels , 2007 .

[2]  S. Ramachandran.  Rapid Thermodynamic Simulation Model of an Internal Combustion Engine on Alternate Fuels , 2009 .

[3]  David R. Buttsworth.  Spark ignition internal combustion engine modelling using Matlab , 2002 .

[4]  Investigations on the Combustion Modeling of Gaseous Fuels , 2010 .

[5]  Y. Çengel,et al.  Thermodynamics : An Engineering Approach , 1989 .

[6]  Yakup Sekmen,et al.  Mathematical Modeling of a SI Engine Cycle with Actual Air-Fuel Cycle Analyses , 2007 .

[7]  Bilal Akash,et al.  Thermodynamic analysis of spark‐ignition engine using a gas mixture model for the working fluid , 2007 .

[8]  Mohd Zamri Yusoff,et al.  A Quasi One-dimensional Simulation of a 4 Stroke Spark Ignition Hydrogen Fuelled Engine , 2005 .

[9]  Nirendra N. Mustafi,et al.  Application of a Spark Ignition Engine Simulation Tool for Alternative Fuels , 2008 .

[10]  D. Jagadish,et al.  Performance and emission characteristics of diesel engine run on biofuels based on experimental and semi analytical methods. , 2011 .

[11]  Rosli Abu Bakar,et al.  In-cylinder heat transfer characteristics of hydrogen fueled engine: a steady state approach , 2010 .

[12]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[13]  Martin A. Reno,et al.  Coefficients for calculating thermodynamic and transport properties of individual species , 1993 .