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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
09/11/2000 |
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Data da última atualização: |
09/11/2000 |
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Autoria: |
FREIRE, M. S. |
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Título: |
Small batch seed dryer using a vacuum cleaner energy source. |
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Ano de publicação: |
1973 |
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Fonte/Imprenta: |
Mississippi State: Mississippi State University, 1973. |
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Páginas: |
60p. |
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Idioma: |
Inglês |
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Notas: |
M.Sc. Thesis. |
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Conteúdo: |
A small batch seed dryer has been developed using an industrial type vacuum cleaner as a source of heat and air. Eighteen experimental drying tests were run to comprove the efficiency of uses of an industrial type vacuum cleaner to dry small amounts of seed. A design is given for constructing a seed container in such a dryer using a 55 gallon drum. Temperature rise and static pressure were major considerations during the drying process, even though air flow, relative humidity, moisture content and drying time were evaluated, also. The temperature rise was very uniform and ranged from 20 to 35oF. Essentially, the electrical input of the motor is converted to heat that raises the temperature of the air, except for a small amount of kinetic energy associated with the moving air and the heat loss in the hose from vacuum cleaner to the plenum chamber. The static pressure ranged from 0.10 to 0.35 inches of water column, indicating that the vacuum cleaner moved a reasonable volume of air through the seed mass. The fundamental factors necessary for drying seed are heat to evaporate the moisture and air to remove the moisture from the vicinity of the seeds (8,9,34,36,37). From this study it can be concluded that the industrial type vacuum cleaner perform efficiently to provide these fundamental factors - heat and air. |
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Categoria do assunto: |
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Marc: |
LEADER 01697nam a2200133 a 4500
001 1462362
005 2000-11-09
008 1973 bl uuuu m 00u1 u #d
100 1 $aFREIRE, M. S.
245 $aSmall batch seed dryer using a vacuum cleaner energy source.
260 $aMississippi State: Mississippi State University$c1973
300 $a60p.
500 $aM.Sc. Thesis.
520 $aA small batch seed dryer has been developed using an industrial type vacuum cleaner as a source of heat and air. Eighteen experimental drying tests were run to comprove the efficiency of uses of an industrial type vacuum cleaner to dry small amounts of seed. A design is given for constructing a seed container in such a dryer using a 55 gallon drum. Temperature rise and static pressure were major considerations during the drying process, even though air flow, relative humidity, moisture content and drying time were evaluated, also. The temperature rise was very uniform and ranged from 20 to 35oF. Essentially, the electrical input of the motor is converted to heat that raises the temperature of the air, except for a small amount of kinetic energy associated with the moving air and the heat loss in the hose from vacuum cleaner to the plenum chamber. The static pressure ranged from 0.10 to 0.35 inches of water column, indicating that the vacuum cleaner moved a reasonable volume of air through the seed mass. The fundamental factors necessary for drying seed are heat to evaporate the moisture and air to remove the moisture from the vicinity of the seeds (8,9,34,36,37). From this study it can be concluded that the industrial type vacuum cleaner perform efficiently to provide these fundamental factors - heat and air.
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Embrapa Soja (CNPSO) |
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| 20. |  | RIOS, G. P.; MUNIZ, M. F. B.; FREIRE, M. S. Resistência e raças fisiológicas de Uromyces phaseoli em Phaseolus acutifolius. Fitopatologia Brasileira, Brasília, DF, v. 18, p. 337, ago. 1993. Suplemento, ref. 430. Edição de Resumos do XXVI Congresso Brasileiro de Fitopatologia, Aracajú, SE, ago. 1993.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 60 | |
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