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Radiative Transfer II. Proceedings of the Second International Symposium on Radiation Transfer
July, 1997 , Kusadasi, Turkey

DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhenCHTRadTransfProc


ISBN Print: 978-1-56700-116-7

ISSN Online: 2642-5629

ISSN Flash Drive: 2642-5661

THE EFFICIENCY OF THE RADIATION PROCESS IN THE CURING OF POWDER COATINGS WITH GASEOUS INFRARED HEATERS

page 11
DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhenCHTRadTransfProc.390
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要約

This paper describes a study (1) which investigated the efficiency of the radiant heat transfer process during the curing of powder coated surfaces. Experiments were carried out using a porous ceramic radiant burner, fired with natural gas, these test measurements were subsequently interpreted using a Monte Carlo algorithm. This algorithm used non-grey calculation procedures based on the Edwards exponential wide band model for the absorption coefficients of the radiating flue gas components. The spectral properties of the powders were measured using a diffuse reflectance Fourier Transform infrared spectrometer.
The results show that the energy transferred to the powder during this process was limited to between 30 and 36% of the energy input from the burning gas and that this efficiency increased slightly with burner temperature and decreased with powder temperature. The quality of the cured surface tended to decrease with increasing burner temperature and it was closely related to the rate of heating of the powder.

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