Fabio Cozzi

TL;DR: In this article, the effects of hydrogen addition on a lean non-premixed natural gas swirl-stabilized flame were investigated, and the experimental results revealed that hydrogen addition extended the stability limits of a conventional natural gas nonpremixed burner and evidenced a significant change in both the flame structure and the flow field.

TL;DR: In this article, two confined lean non-premixed swirl-stabilized flame typologies were investigated in order to achieve detailed information on the thermal and aerodynamic field in the close vicinity of the burner throat and provide correlation with the exhaust emissions.

TL;DR: In this paper, the results for two planar converging-diverging nozzles in the adapted regime and at different inlet conditions, from highly non-ideal to dilute gas state, are reported.

TL;DR: In this paper, the co-bustion mechanism of a composite propellant having the nominal composition 84% RDX + 16% HTPB has been investigated experimentally, and the following steady combustion parameters were collected over the pressure range 0.1 to 8.21 MPa: burn rates, burn surface temperatures, thermal gradients, heat release in the condensed phase, heat feedback from the gas phase, first and second (or final) flame temperatures.

TL;DR: In this article, an experimental investigation aimed at studying pollutant emissions is reported, showing that the full benefits of air staged combustion in swirling flames depend mainly on the method of fuel injection, and that the most common method of axial injection of a premixed jet into a co-axial swirling airflow does not realize the required fast mixing.