A Scale-up Strategy for the Fluid Flow in Biogas Plants
作者： Sven Annas , Hans-Arno Jantzen , Jürgen Scholz , Uwe Janoske
关键词:
摘要: The mixing process in biogas plants is fundamental for effectiveness. Unfortunately, difficulties at full scale mean that research must usually be performed lab-scale and the results up-scaled. This study presents a scale-up strategy fluid flow shear-thinning non-Newtonian fluids. Dimensional analysis was applied to connect influencing parameters, i.e., geometric dimensions, rotational speed, rheological properties, key figures. By using Reynolds Hedstrom number, standards adapting speed properties were defined as function of scale. A sliding-mesh model selected numerical simulations plant with paddle agitator two different scales. approach leads similar velocity fields, which result equal normalized times.
sci-hub.se 参考文章(19)
Gert Böhme, Matthias Stenger, Consistent scale-up procedure for the power consumption in agitated non-newtonian fluids Chemical Engineering & Technology. ,vol. 11, pp. 199- 205 ,(1988) , 10.1002/CEAT.270110127
Andreas Lemmer, Hans-Joachim Naegele, Jana Sondermann, How Efficient are Agitators in Biogas Digesters? Determination of the Efficiency of Submersible Motor Mixers and Incline Agitators by Measuring Nutrient Distribution in Full-Scale Agricultural Biogas Digesters Energies. ,vol. 6, pp. 6255- 6273 ,(2013) , 10.3390/EN6126255
Y.R. Chen, Rheological properties of sieved beef-cattle manure slurry: Rheological model and effects of temperature and solids concentration Agricultural Wastes. ,vol. 15, pp. 17- 33 ,(1986) , 10.1016/0141-4607(86)90123-X
E. Buckingham, On Physically Similar Systems; Illustrations of the Use of Dimensional Equations Physical Review. ,vol. 4, pp. 345- 376 ,(1914) , 10.1103/PHYSREV.4.345
Akhilesh Khapre, Basudeb Munshi, Numerical investigation of hydrodynamic behavior of shear thinning fluids in stirred tank Journal of The Taiwan Institute of Chemical Engineers. ,vol. 56, pp. 16- 27 ,(2015) , 10.1016/J.JTICE.2015.04.003
Manuel Brehmer, Thomas Eppinger, Matthias Kraume, Einfluss der Rheologie auf das Strömungsregime in gerührten großtechnischen Biogasreaktoren Chemie Ingenieur Technik. ,vol. 84, pp. 2048- 2056 ,(2012) , 10.1002/CITE.201200062
C Xuereb, P Swaels, P Hobbes, J Bertrand, B Letellier, Scale-up in laminar and transient regimes of a multi-stage stirrer, a CFD approach Chemical Engineering Science. ,vol. 57, pp. 4617- 4632 ,(2002) , 10.1016/S0009-2509(02)00371-8
Claudio Teitelboim, Radiation Reaction as a Retarded Self-Interaction Physical Review D. ,vol. 4, pp. 345- 347 ,(1971) , 10.1103/PHYSREVD.4.345
Abdellatif Achkari-Begdouri, Philip R. Goodrich, Rheological properties of Moroccan dairy cattle manure Bioresource Technology. ,vol. 40, pp. 149- 156 ,(1992) , 10.1016/0960-8524(92)90201-8
J. Pawlowski, Zur ähnlichkeitstheoretischen Diskussion von Transportvorgängen in nicht‐Newtonschen Fluiden Chemie Ingenieur Technik. ,vol. 77, pp. 1910- 1914 ,(2005) , 10.1002/CITE.200500056