analysis of water injection into high-temperature mixture of ...

LIST OF ABBREVIATIONS, SYMBOLS AND SUBSCRIPTS (CONTINUED)P Pressure of Atmosphere in Pascal ( Pa)0RPMEngine Speed (rev/min)T Temperature of Cylinder gas in Kelvin ( K)TWallEngine Surface Temperature ( K)T0Temperature of Atmosphere in Kelvin ( K)S Engine Stroke ( m)S Entropy of Mixture ( kJ )V Volume of Mixture ( m3)WcvWork done by Gases ( kJ )W Maximum Work done by Gases ( kJ )CV ,maxXMolar Water InjectionX Total Molar Water Injection-Fuel RatiocWa Available of Fuel ( kJ/kg )bEngine Bore (m)bar Pressure in Atmosphere ( Pa)c Piston Blowby Constant ( 1/s )cPSpecific Heat at Constant Pressure of Mixture ( kJ/kg.K )c Specific Heat at Constant Volume of Mixture ( kJ/kg.K )VfhResidual FractionHeat Transfer Coefficient/WeightingkJ/kgh Specific Enthalpy ( )l Rod Length ( m)maMass of Air ( kg)m Mass of Fuel ( kg)fmiMass of Particular Combustion Product ( kg)mmMass of Mixture ( kg)m Mass of Water Injection ( kg)qcrxxiWLower Heat of Combustion (kJ/Kg)Compression RatioFraction of Burned GasMass Fraction of Particular Combustion Productu Specific Internal energy ( kJ/kg )s Specific Entropy ( kJ/kg )xi