Review of Mathematical Models for Calculation of Physical and Chemical Properties of Oxygenated Hydrocarbon Fuel

Aircraft engines are a source of significant greenhouse gas emissions, in particular CO₂. As emission standards become more severe, new approaches to reducing CO₂ emissions from aviation are being sought for. One of the most promising ways to achieve this goal is the use of fuels from renewable sources, such as plant materials. In order to simulate the working process of aircraft engine combustors when burning biofuels and their mixtures with petroleum fuels, one should know the physicochemical properties of such fuels. This paper provides a review of existing methods for calculating the physicochemical properties of oxygen-containing biofuels, including esters, alcohols, and ketones. The methods presented in this paper are validated on substances acting as bioadditives to aviation fuel and analyzed in terms of calculation accuracy and ease of use for studying the working process in combustion chambers.