Prenos toplote i termomehaničko ponašanje atmosmosferskog gorionika kućne gasne grejalice

Abstract

Rad izlaže realizovanu 3D CFD simulaciju faze paljenja gasnog gorionika sa ciljem određivanja maksimalne temperaturske razlike koja u njemu izaziva maksimalne termičke napone. Proces je nestacionaran. Simulacije je realizovana za minimalnu snagu jer je taj slučaj kritičan.

This paper presents performed 3D CFD simulation of burner start-up and finding the maximal temperature difference through mantle thickness which induces maximal thermal stress. The process is unsteady, beginning from the mantle room temperature and ending with its steady state condition. The behavior of burner is simulated for minimal thermal power, i.e., for critical conditions from the mantle temperature standpoint.