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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
09/01/2024 |
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Data da última atualização: |
09/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AFONSO JUNIOR, P. C.; PINTO, F. A. C.; QUEIROZ, D. M. |
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Afiliação: |
PAULO CESAR AFONSO JUNIOR, CNPCa; F. A. C. PINTO, UNIVERSIDADE FEDERAL DE VIÇOSA; D. M. QUEIROZ, UNIVERSIDADE FEDERAL DE VIÇOSA. |
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Título: |
Aerodynamic properties of coffee cherries and beans. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Biosystems Engineering, v. 98, n. 1, p. 39-46, 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
Aerodynamic properties of coffee cherry and beans for two varieties, viz., Coffea arabica (cv Catuai) and Coffea canephora (cv Conilon), were studied for moisture content ranges of 9-54% w.b. and 8-56% w.b., respectively. The increase in both moisture content and true density affected the aerodynamic properties of the product by promoting an increase in the terminal velocity and a reduction in the drag coefficient for both cultivars. The values of terminal velocity of the naturally preprocessed coffee cherries did not exhibit significant changes for the analysed cultivars. The values of terminal velocities for the washed coffee beans of cv Conilon were higher than those found for the beans of cv Catuai. The values of the drag coefficient for both coffee cherries and beans slightly changed during the drying process. However, the variation in the drag coefficient as a function of the moisture content and true density was more evident for the washed beans of Conilon coffee than for Catuai coffee. |
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Thesagro: |
Café Catuaí. |
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Thesaurus NAL: |
Aerodynamics; Cherries; Coffee beans. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01542naa a2200193 a 4500
001 2160606
005 2024-01-09
008 2007 bl uuuu u00u1 u #d
100 1 $aAFONSO JUNIOR, P. C.
245 $aAerodynamic properties of coffee cherries and beans.$h[electronic resource]
260 $c2007
520 $aAerodynamic properties of coffee cherry and beans for two varieties, viz., Coffea arabica (cv Catuai) and Coffea canephora (cv Conilon), were studied for moisture content ranges of 9-54% w.b. and 8-56% w.b., respectively. The increase in both moisture content and true density affected the aerodynamic properties of the product by promoting an increase in the terminal velocity and a reduction in the drag coefficient for both cultivars. The values of terminal velocity of the naturally preprocessed coffee cherries did not exhibit significant changes for the analysed cultivars. The values of terminal velocities for the washed coffee beans of cv Conilon were higher than those found for the beans of cv Catuai. The values of the drag coefficient for both coffee cherries and beans slightly changed during the drying process. However, the variation in the drag coefficient as a function of the moisture content and true density was more evident for the washed beans of Conilon coffee than for Catuai coffee.
650 $aAerodynamics
650 $aCherries
650 $aCoffee beans
650 $aCafé Catuaí
700 1 $aPINTO, F. A. C.
700 1 $aQUEIROZ, D. M.
773 $tBiosystems Engineering$gv. 98, n. 1, p. 39-46, 2007.
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