Predicting Power for a Scaled‐up Non‐Newtonian Biomass Slurry

Russ, David C.; Thomas, Jonathan M. D.; Miller, Q. Sean; Berson, R. Eric

doi:10.1002/ceat.201400327

Title: Predicting Power for a Scaled‐up Non‐Newtonian Biomass Slurry

Journal Article · Fri Nov 28 00:00:00 EST 2014 · Chemical Engineering and Technology

DOI:https://doi.org/10.1002/ceat.201400327· OSTI ID:1401595

Russ, David C.; Thomas, Jonathan M. D.; Miller, Q. Sean; Berson, R. Eric

Abstract High‐solids biomass slurries exhibit non‐Newtonian behavior with a yield stress and require high power input for mixing. The goals were to determine the effect of scale and geometry on power number P ₀ , and estimate the power for mixing a pretreated biomass slurry in a 3.8 million L hydrolysis reactor of conventional design. A lab‐scale computational fluid dynamics model was validated against experimental data and then scaled up. A pitched‐blade turbine and A310 hydrofoil were tested for various geometric arrangements. Flow was transitional; laminar and turbulence models resulted in equivalent P ₀ which increased with scale. The ratio of impeller diameter to tank diameter affected P ₀ for both impellers, but impeller clearance to tank diameter affected P ₀ only for the A310. At least 2 MW is required to operate at this scale.

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Sponsoring Organization:: USDOE

OSTI ID:: 1401595

Journal Information:: Chemical Engineering and Technology, Journal Name: Chemical Engineering and Technology Vol. 38 Journal Issue: 1; ISSN 0930-7516

Publisher:: Wiley Blackwell (John Wiley & Sons)Copyright Statement

Country of Publication:: Germany

Language:: English

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Cited by: 15 works

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References (27)

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