Investigation of distribution uniformity of distributor for biogas slurry application based on CFD analysis
Keywords:
distributor, biogas slurry, distribution uniformity, rheological properties, CFDAbstract
A horizontal distributor for biogas slurry application was proposed to explore the distribution performance through CFD analysis and verified by field test. The rheological properties of biogas slurry were analyzed at first, and key parameters were obtained for the next simulation. The effects of distribution modes, inlet direction, and outlets number on the velocity distribution of flow field and mass flow rate of the horizontal distributor were investigated by CFD simulations. Results of rheological properties indicated that biogas slurry was a non-Newtonian fluid and exhibited shear-thinning behavior. It can be well described by power-law model. The simulation results showed that the geometry of rotor, especially the block numbers was the main factor that determined the fluid movement and trajectory of distribution and output. The mode rotor 1 with two blocks reached the lowest variable coefficient of mass flow rate (4.49%), indicating a higher degree of uniformity. The upward inlet direction would obtain less dead zone, and the distributor with an even outlets number would possess more uniform distribution and less dead zone. The field test of the distributor with rotor 1, upward inlet direction, and 24 outlets has been carried on to verify the simulation results, the variable coefficient of mass flow was 13.06%, which was slightly higher than the simulation (9.23%), but it still within the range of requirement (<15%). The proposed model and the findings of this work are of guiding significance for the study of the utilization technology and equipment of liquid biogas residue. Keywords: distributor, biogas slurry, distribution uniformity, rheological properties, CFD DOI: 10.25165/j.ijabe.20231601.7460 Citation: Fu J J, Chen Y S, Xu B X, Ma B, Wang P J, Wu A B, et al. Investigation of distribution uniformity of distributor for biogas slurry application based on CFD analysis. Int J Agric & Biol Eng, 2023; 16(1): 45–52.References
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[2] Dong B C, Song C J, Li H B, Lin A J, Wang J C, Li W. Life cycle assessment on the environmental impacts of different pig manure management techniques. Int J Agric & Biol Eng, 2022; 15(3): 78–84.
[3] Dong S S, Sui B, Shen Y J, Meng H B, Zhao L X, Ding J T, et al. Investigation and analysis of the linkage mechanism and whole process cost of livestock manure organic fertilizer. Int J Agric & Biol Eng, 2020; 13(2): 223–227.
[4] Tian L, Shen F, Yuan H R, Zou D X, Liu Y P, Zhu B N, et al. Reducing agitation energy-consumption by improving rheological properties of corn stover substrate in anaerobic digestion. Bioresource Technology, 2014; 168: 86–91.
[5] Mao L W, Zhang J X, Dai Y J, Tong Y. Effects of mixing time on methane production from anaerobic co-digestion of food waste and chicken manure: Experimental studies and CFD analysis. Bioresource Technology, 2019; 294: 122177. doi: 10.1016/j.biortech.2019.122177.
[6] Gao Y H, Zhang C A, Dong J J. Research progress on fertilizer application of biogas residue and liquid. Shandong Agricultural Sciences, 2011; 1(6): 71–75. (in Chinese)
[7] Ding J T, Shen Y J, Ma Y R, Meng H B, Cheng H S, Zhang X, et al. Study on dynamic sorption characteristics of modified biochars for ammonium in biogas slurry. Int J Agric & Biol Eng, 2020; 13(1): 234–240.
[8] Zheng J, Qi X Y, Yang S H, Shi C, Feng Z J. Effects and evaluation of biogas slurry/water integrated irrigation technology on the growth, yield and quality of tomatoes. Int J Agric & Biol Eng, 2022; 15(5): 123–131.
[9] Balsari P, Airoldi G, Gioelli F. Improved recycling of livestock slurries on maize by means of a modular tanker and spreader. Bioresource Technology, 2005; 96(2): 229–234.
[10] Gioelli F, Balsari P, Dinuccio E, Airoldi G. Band application of slurry in orchards using a prototype spreader with an automatic rate controller. Biosystems Engineering, 2014; 121: 130–138.
[11] Rodhe L, Etana A. Performance of slurry injectors compared with band spreading on three Swedish soils with Ley. Biosystems Engineering, 2005; 92(1): 107–118.
[12] Wang J W, Pan Z W, Yang X L, Liu Y U, Zhang C F, Wang J F. Design and experiment of rotary converter of liquid fertilizer. Transactions of the CSAM, 2014; 45(10): 110–115. (in Chinese)
[13] Zhou W Q, Sun X B, Liu Z M, Qi X, Jiang D X, Wang J W. Simulation analysis and test of interaction between pricking hole needle body of liquid fertilizer hole applicator and soil. Transactions of the CSAM, 2020; 51(4): 87–94. (in Chinese)
[14] Yang Z D, Wang T G, Lan Y, Zhao G H. Study of design and test on wheel-type liquid fertilizer deep machinery. Journal of Agricultural Mechanization Research, 2017; 39(4): 139–143. (in Chinese)
[15] Li W Z, Yuan H, Liu H X, Wang M, Li W T, Yin L L. Biogas slurry fertilizer application for dark irrigation. Transactions of the CSAM, 2014; 45(11): 75–80. (in Chinese)
[16] Liu H X, Xu G W, Jia R, Li Y L. Operating principle and structural optimization of impulse type anti-blocking distribution device for biogas manure. Transactions of the CSAE, 2015; 31(22): 32–39. (in Chinese)
[17] Zhai X D, Denka K I, Wu B X. Investigation of the effect of intermittent minimal mixing intensity on methane production during anaerobic digestion of dairy manure. Computers and Electronics in Agriculture, 2018; 155: 121–129.
[18] Schneider N, Gerber M. Rheological properties of digestate from agricultural biogas plants: An overview of measurement techniques and influencing factors. Renewable and Sustainable Energy Reviews, 2020; 121: 109709. doi: 10.1016/j.rser.2020.109709.
[19] Wu B X, Chen S L. CFD simulation of non-Newtonian fluid flow in anaerobic digesters. Biotechnology and Bioengineering, 2008; 99(3): 700–711.
[20] Standard methods for the examination of water and wastewater. Washington, DC, USA: American Public Health Association, 2005.
[21] Markis F, Baudez J, Parthasarathy R, Slatter P, Eshtiaghi N. The apparent viscosity and yield stress of mixtures of primary and secondary sludge: Impact of volume fraction of secondary sludge and total solids concentration. Chemical Engineering Journal, 2016; 288: 577–587.
[22] Luo T Q. Fluid Mechanics. 4th. Beijing, China: China Machine Press, 2020.
[23] Liu Y Q, Chen J J, Song J, Hai Z, Lu X H, Ji X Y, et al. Adjusting the rheological properties of corn-straw slurry to reduce the agitation power consumption in anaerobic digestion. Bioresource Technology, 2019; 272: 360–369.
[24] Hreiz R, Adouani N, Fünfschilling D, Marchal P, Pons M. Rheological characterization of raw and anaerobically digested cow slurry. Chemical Engineering Research and Design, 2017; 119: 47–57.
[25] Schneider N, Gerber M. Rheological properties of digestate from agricultural biogas plants: An overview of measurement techniques and influencing factors. Renewable and Sustainable Energy Reviews, 2020; 121: 109709. doi: 10.1016/j.rser.2020.109709.
[26] Slatter P T. The rheological characterisation of sludges. Water Science and Technology, 1997; 36(11): 9–18.
[27] Tang B, Zhang Z. Essence of disposing the excess sludge and optimizing the operation of wastewater treatment: Rheological behavior and microbial ecosystem. Chemosphere, 2014; 105: 1–13.
[28] Hong E, Herbert C M, Yeneneh A M, Sen T K. Rheological characteristics of mixed kaolin-sand slurry, impacts of pH, temperature, solid concentration and kaolin-sand mixing ratio. International Journal of Environmental Science and Technology, 2016; 13(11): 2629–2638.
[29] Wei L L, Ren Y M, Zhu F Y, Xia X H, Xue C H, Yang H Z, et al. Horizontal flow reactor optimization for biogas recovery during high solid organics fermentation: Rheological characteristic analyses. Journal of Water Process Engineering, 2021; 40: 101776. doi: 10.1016/ j.jwpe.2020.101776.
[30] Servati P, Hajinezhad A. CFD simulation of anaerobic digester to investigate sludge rheology and biogas production. Biomass Conversion and Biorefinery, 2020; 10(4): 885–899.
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Published
2023-03-13
How to Cite
Fu, J., Chen, Y., Xu, B., Ma, B., Wang, P., Wu, A., & Chen, M. (2023). Investigation of distribution uniformity of distributor for biogas slurry application based on CFD analysis. International Journal of Agricultural and Biological Engineering, 16(1), 45–52. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/7460
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Applied Science, Engineering and Technology
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