Mathematical modelling of heat transfer in a gas radiant of "dark"type

B. A. Semenov, D. I. Pashchenko, S. A. Mitenev

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

The technique and results of mathematical modelling of a complex of internal and external processes of conjugate radiant-convective heat transfer are showed in conditions of laminar long-flame combustion inside the radiating tubes under different modes of operation of the "dark" gas radiators. The conditions of the numerical experiment performed on the example of series serial products made by Sibschwank company for estimating the radiant and full efficiency factors in variable regimes are described. The results of the investigation are summarized in the form of multifactor computational dependencies obtained by the method of orthogonal planning of the first order with the change of variables by power functions. The indices of the longitudinal uniformity of the temperature distribution over the surface of the radiating tubes are quantitatively estimated when the main significant factors are varied. The conditions for the effective operation of the devices studied are substantiated, taking into account a set of basic requirements for ensuring longitudinal uniformity, energy efficiency, and not exceeding the permissible temperature of the metal wall in the zones of existence of local maxima.

Original languageEnglish
Article number012008
JournalJournal of Physics: Conference Series
Volume1111
Issue number1
DOIs
StatePublished - 21 Dec 2018
Externally publishedYes
Event14th International Scientific and Technical Conference on Problems of Energy Systems and Thermal Power Complexes, PESPC 2018 - Saratov, Russian Federation
Duration: 30 Oct 20181 Nov 2018

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