Tribological characterisation of bio lubricant from cucurbita pepo L. seed oil

Mondal, Ikramul Hossain; Baruah, Monoj; Choudhury, Nabajit Dev

doi:10.1080/2374068x.2022.2161158

Cited by 1 publication

(2 citation statements)

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“…Seed shearing loss is shown in Figure 6, and the weight loss obviously increased from 0.032 g under 1 N to 0.192 g under 9 N. As the weight loss increased, the loss fluctuation also added. With load increasing, shear plowing effect on seed surface was intensified, and more oil is extracted from inside endosperm, which lowered stable COF for oil lubrication effect (Hossain Mondal et al, 2022). From surface shearing morphology in Figure 6a–c, under lower working loads, only a portion of the seed coat was damaged, while most coat remained no oil flowed out internally.…”

Section: Resultsmentioning

confidence: 99%

“…As the weight loss increased, the loss fluctuation also added. With load increasing, shear plowing effect on seed surface was intensified, and more oil is extracted from inside endosperm, which lowered stable COF for oil lubrication effect (Hossain Mondal et al, 2022). From surface shearing morphology in Figure 6a-c…”

Section: Effects Of Working Load On Castor Seed Shearingmentioning

confidence: 99%

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Research on microstructural‐mechanical and shearing properties of castor seed during mechanical extraction

Yang

Chen

et al. 2023

Journal of Texture Studies

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Castor seed oil, as an important biomass fuel, has attracted extensive attention worldwide due to inclusive applications. Castor seed screw mechanical extraction is in fact seed shear damage and oil output. Seed shearing mechanism has been investigated with a developed tribometer. Influences of pressing load, shearing speed, roller roughness were analyzed. Castor seed structural damage was in‐situ observed with optical microscope, and in‐depth analyzed with Scanning Electron Microscopy and Energy Dispersive Spectroscopy. The results reveal that shear interaction can be divided into three stages: coat damage, transition shearing and endosperm oil output. Seed shear mechanism includes coat peeling, endosperm plowing, tissue transferring and oil lubrication. High pressing load leads to more damage of coat and endosperm, causing more oil to flow out. With shearing speed increasing, coat is easily peeled, obvious endosperm shear plowing and oil lubrication happened in contact area. Coat damage by high roughness leads more oil output. Castor oil enters the contact area and work as lubricant, leading to the decrease of friction resistance.

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Section: Resultsmentioning

confidence: 99%

Section: Effects Of Working Load On Castor Seed Shearingmentioning

confidence: 99%