Analysis of combustion process of a charge of natural gas in laboratory combustion chamber

The article contains an analysis of investigation results of the combustion process of a charge of natural gas mixture with air. Investigations were carried for charges of stoichiometric composition and lean ones for various initial pressures in the combustion chamber. Ignition of the mixture was indicated by an ignition plug supplied from a direct ignition device. Measurements comprise a digital record of the pressure course in the chamber. Values of pressure increment in the chamber during the combustion process were analyzed. A diagram of pressure increment values dependent on charge composition and initial pressure in the combustion chamber was elaborated. Evaluation of particular results permits to determine potential possibilities of gas - air charge combustion.