Drying Rate of Wood Particles With Longitudinal Mass Transfer

Autor:	P. C. Malte, Ashley F. Emery, B. Dorri
Rok vydání:	1985
Předmět:	SIMPLE (dark matter experiment) Materials science Moisture Liquid water Mechanical Engineering Evaporation Front (oceanography) Mechanics Numerical models Condensed Matter Physics Mechanics of Materials Mass transfer Particle General Materials Science
Zdroj:	Journal of Heat Transfer. 107:12-18
ISSN:	1528-8943 0022-1481
DOI:	10.1115/1.3247368
Popis:	The drying of small wood particles of shape L:W:t = 3 to 5:2:1 is examined by three numerical models, and results are compared to measurements. (i) A one-dimensional rectangular model has liquid water concentrated in the center of a particle, and this is removed as an evaporation front propagates into the liquid. (ii) The one-dimensional model is also treated by the volume-averaged, or “smeared” approach, for which the moisture at any point is a distribution of liquid and vapor. For the simple rectangular geometry, the frontal and smeared models give similar results. (iii) Equivalent spherical particles are analyzed by a smeared model which includes capillarity. Reasonable agreement is obtained between the spherical results and the measurements, though an overprediction in drying rate occurs for slender particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7bcc877a7f23123f6a34a9bd6894e65 https://doi.org/10.1115/1.3247368 Zobrazit plný text záznamu