Diffusion Spreading of the Emitted Metallurgical Gas

Abstract:

The main parameter which shows the space distribution of the emitted gas components is the rate of concentration decrease by the increase of the distance from the point where the emitted gas appears in the atmosphere. It is considered three different driving forces leading to the spreading of the emitted gas components from the centre of the metallurgical region to its periphery:  diffusion factor – the appearance of the emitted substance is the reason of the local concentration increase, it correlates with the diffusion process;  wind load factor – the wind movement acts always in advantage direction, wind force is not space homogeneous as the diffusion force is;  chemical factor – the intensity of chemical interaction of emitted components with the atmospheric ones influences the space distribution of the interaction products (secondary emissions). The proposed method allows to predict the space-time distribution of the emitted metallurgical gas by various external conditions.

• Periodical: Defect and Diffusion Forum (Volumes 309-310)
• Pages: 239-242
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.309-310.239
• Online since: March 2011
• Authors: K.V. Vishnyakova, A.L. Petelin, Yu.S. Yusphin
• Keywords: Chemical Effect, Diffusion, Emission, Fisher's Model, Maximum Permissible Concentration, Stream

References

[1] K.V. Vishnyakova, A.L. Petelin, Yu.S. Yusphin: Izv. VUZov Ferrous metallurgy, №1, January (2009), p.63.

[2] I.M. Kvashnin: Maximum permissible concentration of the enterprise in an atmosphere. Dispersion and an establishment of guidelines (AVOK-PRESS, Moscow 2008).

[3] B.S. Bokshteyn: Diffusion in metals (Metallurgy publs., Moscow 1978).

[4] V.A. Isidorov: Ecological chemistry: the Manual for high schools (Himizdat, SPb 2001) A.A. Petelina.