Methane Combustion: An Exergy Analysis

Abstract

A VBA (Visual Basic for Applications) code was developed to determine the exergy associated to the methane combustion. It was considered as the main sub‐processes for each stage of reaction: the combined reactant mixing, the fuel oxidation, the internal thermal energy exchange (heat transfer), and the product mixing process. The exergetic efficiency and the temperature of the products were computed as a function of the percentage of the excess air. It was verified that the internal thermal energy exchange is the sub‐process where the larger exergy destruction occurs.