THE PROCESS OF FORMATION OF A CIRCULAR TURBULENT JET NATURAL AND LIQUEFIED GASES IN A DIFFUSION FLARE 

Shtykov Roman Aleksandrovich, candidate of technical sciences, associate professor, sub-department of physics and applied mathematics, Murom Institute of Vladimir State University named after Aleksandr Grigor'evich and Nikolay Grigor'evich Stoletovy
(602264, 23 Orlovskaya street, Murom, Russia), Е-mail: ipmrroman@yandex.ru 

681.324 

10.21685/2307-4205-2018-4-7 

Background. The completeness of combustion of combustible gases – one of the main indicators of fuelburning plants – is closely related to the uniformity in the distribution of active components in «working bodies». Therefore, in the injection gas burners for industrial and domestic purposes, in internal combustion chambers, sections (or chambers) are provided where preliminary mixture formation of the reacting media without burning takes place.
Materials and methods. In this paper, modifications of the diffusion combustion model for the cases listed above are given. The general representation of these modifications, taking into account each chemical element in the course of solving the diffusion problem of conservation and mass transfer and recognizing the existence of a united front for all combustible components of the flame front.
Results. The problem of diffusion combustion of a combustible mixture with five combustible components is formulated and solved. It is shown that the flares of liquefied gases in an axisymmetric jet are 1,5 times longer than natural gas flares, and the length of diffusion flares of natural gases and pure methane differ by not more than 3 %.
Conclusions. Summation of the concentrations of components in the fuel and oxidizer zones, stoichiometric intake of combustible gases and oxygen (air) to the flame front, show the adequacy of calculating the formation of a circular turbulent jet. 

turbulent jet, gas, parameters, torch, combustion