Vane geometry for measurement of influent rheological behaviour in dry anaerobic digestion
نویسندگان
چکیده
The knowledge of the rheology influents involved in dry anaerobic digestion is an essential factor for process optimization. Despite this fact, it difficult to characterize rheological behaviour these with high total solid (TS) content. Indeed, standard methods measurements are poorly adapted because sliding effects observed during measurements. In study, we used a non-standard method, Vane geometry, its particularity limit effects. Two types were carried out on potato 18–35% TS, extracted from digesters. first measurement was submit sample rising shear velocity ramp 0 200 s−1 at 37 °C and 55 °C. results show good correlation between rheograms Herschel-Bulkley model deduced pseudoplastic threshold behaviour. second performed oscillations 10 Hz 25 °C, different evolutions elastic G′ viscous G″ modulus as function temperature. There crossing greater than finally forming plateau characteristic gel. crucial design operating instructions reactors TS geometry would, therefore, be effective tool characterizing digestion.
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ژورنال
عنوان ژورنال: Renewable & Sustainable Energy Reviews
سال: 2022
ISSN: ['1879-0690', '1364-0321']
DOI: https://doi.org/10.1016/j.rser.2021.111928