A Step Towards CO2-Neutral AviationAn approximation method for evaluation of the caloric equations used in combustion chemistry simulations is described. The method is applied to generate the equations of specific heat, static enthalpy, and Gibb's free energy for fuel mixtures of interest to gas turbine engine manufacturers. Liquid-phase fuel properties are also derived. The fuels include JP-8, synthetic fuel, and two fuel blends consisting of a mixture of JP-8 and synthetic fuel. The complete set of fuel property equations for both phases are implemented into a computational fluid dynamics (CFD) flow solver database, and multi-phase, reacting flow simulations of a well-tested liquid-fueled combustor are performed. The simulations are a first step in understanding combustion system performance and operational issues when using alternate fuels, at practical engine operating conditions.
Document ID
20070026244
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Brankovic, Andreja (Flow Parametrics, LLC Ivoryton, CT, United States)
Ryder, Robert C. (Flow Parametrics, LLC Ivoryton, CT, United States)
Hendricks, Robert C. (NASA Glenn Research Center Cleveland, OH, United States)
Huber, Marcia L. (National Inst. of Standards and Technology Boulder, CO, United States)