Experiments on discretely heated, vented/unvented enclosures for various radiation surface characteristics of the thermal load, enclosure temperature sensor, and enclosure walls

John P. Abraham, Ephraim M Sparrow

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

A comprehensive experimental investigation has been performed to determine the heat transfer processes occurring within an oven-like enclosure. The main focus of the work was to identify the thermal response of a load to a number of operational parameters including the radiation surface finish of the load itself and the surface finishes of the oven temperature sensor and the oven walls. In addition, the effect of the presence of absence of venting of the oven was investigated. The thermal response of the load was slowed significantly as its was systematically increased. When the oven temperature sensor was operated either with a blackened surface or with a highly reflecting surface, the thermal response of the load was hardly affected. In the case in which the oven walls were highly reflecting and the thermal load was highly absorbing, a higher heating rate was observed. When the oven vents were sealed, the heating rate was minimally affected.

Original languageEnglish (US)
Pages (from-to)2255-2263
Number of pages9
JournalInternational Journal of Heat and Mass Transfer
Volume45
Issue number11
DOIs
StatePublished - Apr 2 2002

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