ANALYSIS OF THE RAYLEIGH NUMBER IN THE AREA OF STEEL RECTANGULAR SECTIONS IN THE CONDITIONS OF STEDY AND UNSTEDY HEAT FLOW
Journal Title: Civil and Environmental Engineering Reports - Year 2014, Vol 3, Issue 14
Abstract
The paper presents the experimental measurements dedicated to the research for the Rayleigh number (Ra) in the area of rectangular steel sections. This problem is associated with the analysis of the free convection which takes place in the heating of sections bundles during the heat treatment. The study was conducted for both steady and transient heat transfer. The values of the Ra number obtained for the tested sections allow to describe the phenomenon of convection on the basis of a very simple criterial dependence. It greatly simplifies the mathematical description of the heat transfer phenomenon in the concerned charges.
Authors and Affiliations
Rafał WYCZÓŁKOWSKI
Keywords
Related Articles
- EP ID EP270479
- DOI 10.1515/ceer-2014-0029
- Views 74
- Downloads 0
Interdependence of building elements in the analysis of repair
The paper presents a comparative analysis of the results of the evaluation of technical wear of residential buildings situated in Żary (a town in Lubuskie Voivodship) with the results of calculated percentage values of w...
Trace elements in solutions from zeolite synthesis
The paper presents the content of selected elements in solutions formed after the synthesis of zeolitic material based on fly ash. Fly ash samples were taken from two pulverized fuel-fired boilers at the Rybnik Power Pla...
SELECTED TRACE ELEMENT CONCENTRATIONS IN PEAT USED FOR COSMETIC PRODUCTION – A CASE STUDY FROM SOUTHERN POLAND
The aim of the study was to assess the concentration of selected trace elements in organic soils used as a source to obtain a unique peat extract for cosmetics production. Peat material for laboratory analysis were colle...
Water management consideration in the Lubin-Głogów Cupriferous Basin
The Lubin-Głogów Cupriferous Basin is an area of intensive mining exploitation. The four active underground copper mines are: “Lubin”, “Polkowice”, “Sieroszowice” and “Rudna”. In work are characterised topical states of...
Technical mishandles occurring in building renovation and modernization
The paper presents current technical requirements related to adaptations, extentions and modernizations of building facilities according to the binding legal and technical documents. It also presents the technical reason...