Effects of compression ratio on variation of stresses and residual oil of cake in pressing process of castor beans and its curve fitting
The relationships among compression ratio and stress, compression ratio and residual oil of cake in pressing process of castor beans were studied using the test equipment under different states of oilseeds and ways of pressing manners. The results show that variation of stress increases nonlinearly...
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| Published in | Journal of Central South University Vol. 22; no. 11; pp. 4476 - 4482 |
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| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Changsha
Central South University
01.11.2015
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| Subjects | |
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| Abstract | The relationships among compression ratio and stress, compression ratio and residual oil of cake in pressing process of castor beans were studied using the test equipment under different states of oilseeds and ways of pressing manners. The results show that variation of stress increases nonlinearly and residual oil rate decreases with the increase of compression ratio. Lower residual oil of cake was obtained by pressing gently and frequently. Curve fitting on both relationships had been built and parameters for the model were obtained by least square procedure and deepening research on pressing process of the castor beans for castor oil. By assuming that the value of oil production is equivalent to the value of energy consumption, the critical compression ratio of intact seeds is 6.2 while that of crushed seeds is 3.6. |
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| AbstractList | The relationships among compression ratio and stress, compression ratio and residual oil of cake in pressing process of castor beans were studied using the test equipment under different states of oilseeds and ways of pressing manners. The results show that variation of stress increases nonlinearly and residual oil rate decreases with the increase of compression ratio. Lower residual oil of cake was obtained by pressing gently and frequently. Curve fitting on both relationships had been built and parameters for the model were obtained by least square procedure and deepening research on pressing process of the castor beans for castor oil. By assuming that the value of oil production is equivalent to the value of energy consumption, the critical compression ratio of intact seeds is 6.2 while that of crushed seeds is 3.6. |
| Author | Xu, Fang-lei Liu, Ru-kuan Li, Chang-zhu Li, Hui Ye, Hong-qi Xiao, Zhi-hong Zeng, Fan-tao |
| Author_xml | – sequence: 1 givenname: Ru-kuan surname: Liu fullname: Liu, Ru-kuan email: liurukuan@gmail.com organization: School of Chemistry and Chemical Engineering, Central South University, Hunan Academy of Forestry – sequence: 2 givenname: Fang-lei surname: Xu fullname: Xu, Fang-lei organization: School of Mechanical and Electrical Engineering, Central South University – sequence: 3 givenname: Zhi-hong surname: Xiao fullname: Xiao, Zhi-hong organization: Hunan Academy of Forestry – sequence: 4 givenname: Chang-zhu surname: Li fullname: Li, Chang-zhu organization: Hunan Academy of Forestry – sequence: 5 givenname: Hui surname: Li fullname: Li, Hui organization: Hunan Academy of Forestry – sequence: 6 givenname: Fan-tao surname: Zeng fullname: Zeng, Fan-tao organization: School of Chemistry and Chemical Engineering, Central South University, Hunan Academy of Forestry – sequence: 7 givenname: Hong-qi surname: Ye fullname: Ye, Hong-qi organization: School of Chemistry and Chemical Engineering, Central South University |
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| Cites_doi | 10.1016/S0032-5910(02)00111-0 10.1121/1.408903 10.1016/0021-8634(83)90113-0 10.1016/j.biombioe.2007.08.004 10.1016/0032-5910(71)80001-3 10.1021/ie50298a019 10.1002/ejlt.200900138 10.1016/j.biortech.2005.03.028 10.1016/j.jmatprotec.2006.11.022 10.1021/ie500508n 10.1016/j.jallcom.2010.09.042 |
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| Keywords | energy consumption value critical compression ratio residual oil castor bean oil production value |
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| Title | Effects of compression ratio on variation of stresses and residual oil of cake in pressing process of castor beans and its curve fitting |
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