poster - International Conference of Agricultural Engineering
poster - International Conference of Agricultural Engineering poster - International Conference of Agricultural Engineering
Figure 2-Relationship between the viscosity of the castor oil plant genotype BRS Energia and temperature interaction significant at 1% significance level. Campina Grande, Paraíba, Brazil. The wild one material (Equation 4) suffered loss in viscosity at a temperature even lower, possibly because the lower content of fatty acids contained in oil of this genotype, although not measured. Equation: y = 8863445,00 – 84494,0x + 267,461x 2 – 0,2811x 3 (4) R 2 = 0,9366 According CHIERICE NETO AND CLEAR (2001) the specific behavior of castor oil in the face of variable density and viscosity is due to the strong presence of ricinoleic acid (approximately 89.5%) in the oil composition, the molecule of this acid has 18 carbon atoms with three functional groups: the terminal carboxylic group, the double bond in the 9th carbon and the hydroxyl group at the 12th carbon. This structure of ricinoleic acid is also responsible for the solubility of castor oil in ethanol at normal temperature and pressure conditions (CNTP), it differing from the other vegetable oils. This high viscosity is interesting for some industrial applications, their use as lubricant, and is not good for others, their use as biodiesel, but this oil does not preclude such use, because now you can mix oils to obtain various types biodiesel that meets national specifications (ANP) and international oil and castor oil can enter up to 40% without problems in a mixture of mineral diesel. Specific Heat The average values of specific heat of genotype BRS Energia (0.3653 cal/g ºC) showed a significant difference at 5% probability by Tukey test, when compared to Wild genotypes (0.2792 cal/g °C) and BRS Paraguaçu (0.2742 cal/g °C), consisting higher heat capacity, to easily gain and heat loss without significant changes in temperature of the oil, which is important for industrial use. The larger the specific heat more heat energy can be retained without great increase in temperature.
4 Conclusions • The density obtained from castor oil was uniform and stable (ranging from 0.99 to 0.91 g/cm ³) in the temperature range from -20 °C and 60 °C, almost independent of the genotype studied underscoring the high stability this oil; • The viscosity of castor oil in the range of -20 to 60 ° C has been reduced with the increase of its own energy content, in the same proportions between tested genotypes; • The highest specific heat was the genotype BRS Energia (0.3653 cal/g °C), indicating that this is oil accumulates greater amount of heat energy without a large increase in temperature; • The minimum flow point of the three genotypes was considered low within a range of -18.17 to -18.47 ° C, confirming that the castor oil freezes at low temperatures. 5 Reference CHIERICE, G.O.; CLARO NETO, S. Aplicação industrial do óleo. FIGUEIREDO NETO, A.; ARAÚJO, ALDERI EMÍDIO.; ARAÚJO, ALEXANDRE EDUARDO; AZEVEDO, D.M.P.; VIEIRA, D. J.; LEITE, E. J.; FREIRE, E. C. O agronegócio da mamona no Brasil. 1º Ed. Brasília, DF: Embrapa Informação Tecnológica. 2001. Cap.5, pág.89-119. ISBN.85-7383- 116-2. COSTA, T. L.; MARTINS, M. E. D.; BELTRÃO, N. E. DE M.; MARQUÊS, L. F.; PAIXÃO, F. J. Revista da Pesquisa Aplicada e Agrotecnologia. Características do óleo de mamona da cultivar BRS-188 Paraguaçu. Set.-dez. 2008, v.1, n.1. DELGADO, A. E.; CHAPARRO, W. A.; GONZALEZ, J. R. S. Influencia del porcentaje de mezcla del aceite de higuerilla en la obtención de combustible alternativo para motores diesel: Infl uence of castor oil mix composition on the production of biofuel. Revista da. Faculdade. de Engenharia da. Universidade de. Antioquia. n.° 58 , pag. 46-52. Março, 2011. FREIRE, R. M. M. Em O Agronegócio da Mamona no Brasil. FIGUEIREDO NETO, A.; ARAÚJO, A. E.; ARAÚJO, A. E.; AZEVEDO, D. M. P.; VIEIRA, D. J.; LEITE, E. J.; FREIRE, E. C. Ed.; UNB, 2001, cap. 13. O`BRIEN, R. D.; FARR, W. E.; WAN, P. J.; Introduction to fats and oils technology, 2th ed., AOCS Press: Champaign, 2000. ROSEMBERG, N. J. Microclimate: the biological environment. John Wiley & Sons, New York. 1974. 315p. SAVY FILHO, A.; BANZATTO, N. V.; BARBOZA, M. Z. ; MIGUEL, A. M. R. O.; DAVI, L. O. de C.; RIBEIRO, F. F. Mamona. Campinas, SP. Coordenadoria de Assistência Técnica Integral, 1999. (CATI, Oleaginosas no estado de São Paulo: análise e diagnóstico. Documento Técnico, 107).
- Page 1 and 2: POSTER SW: SOIL AND WATER ENGINEERI
- Page 3 and 4: Presenter: Jose Euclides Paterniani
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- Page 19 and 20: 2. Materials and Methods 2.1 The hy
- Page 21 and 22: Ia = n × v ec Equation 3 which: Ia
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- Page 39 and 40: Cool, J. B., Rodrigo, G. N., Garcí
- Page 41 and 42: Abstract Agriculture and water sour
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4 Conclusions<br />
• The density obtained from castor oil was uniform and stable (ranging from 0.99 to 0.91<br />
g/cm ³) in the temperature range from -20 °C and 60 °C, almost independent <strong>of</strong> the genotype<br />
studied underscoring the high stability this oil;<br />
• The viscosity <strong>of</strong> castor oil in the range <strong>of</strong> -20 to 60 ° C has been reduced with the increase<br />
<strong>of</strong> its own energy content, in the same proportions between tested genotypes;<br />
• The highest specific heat was the genotype BRS Energia (0.3653 cal/g °C), indicating that<br />
this is oil accumulates greater amount <strong>of</strong> heat energy without a large increase in<br />
temperature;<br />
• The minimum flow point <strong>of</strong> the three genotypes was considered low within a range <strong>of</strong> -18.17<br />
to -18.47 ° C, confirming that the castor oil freezes at low temperatures.<br />
5 Reference<br />
CHIERICE, G.O.; CLARO NETO, S. Aplicação industrial do óleo. FIGUEIREDO NETO, A.;<br />
ARAÚJO, ALDERI EMÍDIO.; ARAÚJO, ALEXANDRE EDUARDO; AZEVEDO, D.M.P.;<br />
VIEIRA, D. J.; LEITE, E. J.; FREIRE, E. C. O agronegócio da mamona no Brasil. 1º Ed.<br />
Brasília, DF: Embrapa Informação Tecnológica. 2001. Cap.5, pág.89-119. ISBN.85-7383-<br />
116-2.<br />
COSTA, T. L.; MARTINS, M. E. D.; BELTRÃO, N. E. DE M.; MARQUÊS, L. F.; PAIXÃO, F.<br />
J. Revista da Pesquisa Aplicada e Agrotecnologia. Características do óleo de mamona da<br />
cultivar BRS-188 Paraguaçu. Set.-dez. 2008, v.1, n.1.<br />
DELGADO, A. E.; CHAPARRO, W. A.; GONZALEZ, J. R. S. Influencia del porcentaje de<br />
mezcla del aceite de higuerilla en la obtención de combustible alternativo para motores<br />
diesel: Infl uence <strong>of</strong> castor oil mix composition on the production <strong>of</strong> bi<strong>of</strong>uel. Revista da.<br />
Faculdade. de Engenharia da. Universidade de. Antioquia. n.° 58 , pag. 46-52. Março, 2011.<br />
FREIRE, R. M. M. Em O Agronegócio da Mamona no Brasil. FIGUEIREDO NETO, A.;<br />
ARAÚJO, A. E.; ARAÚJO, A. E.; AZEVEDO, D. M. P.; VIEIRA, D. J.; LEITE, E. J.; FREIRE,<br />
E. C. Ed.; UNB, 2001, cap. 13.<br />
O`BRIEN, R. D.; FARR, W. E.; WAN, P. J.; Introduction to fats and oils technology, 2th ed.,<br />
AOCS Press: Champaign, 2000.<br />
ROSEMBERG, N. J. Microclimate: the biological environment. John Wiley & Sons, New<br />
York. 1974. 315p.<br />
SAVY FILHO, A.; BANZATTO, N. V.; BARBOZA, M. Z. ; MIGUEL, A. M. R. O.; DAVI, L. O.<br />
de C.; RIBEIRO, F. F. Mamona. Campinas, SP. Coordenadoria de Assistência Técnica<br />
Integral, 1999. (CATI, Oleaginosas no estado de São Paulo: análise e diagnóstico.<br />
Documento Técnico, 107).