Investigation of distribution uniformity of distributor for biogas slurry application based on CFD analysis
作者机构:Nanjing Institute of Agricultural MechanizationMinistry of Agriculture and Rural AffairsNanjing 210014China
出 版 物:《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报(英文))
年 卷 期:2023年第16卷第1期
页 面:45-52,F0003页
核心收录:
学科分类:0828[工学-农业工程] 08[工学] 09[农学] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种]
基 金:supported by the Jiangsu Modern Agricultural Machinery Equipment and Technology Demonstration and Promotion Project(Grant No.NJ2021-23) Jiangsu Province Agricultural Science and Technology Independent Innovation Fund Project(Grant No.CX(22)3093) the Fundamental Research Fund of the Chinese Academy of Agricultural Sciences at the Institute Level(Grant No.S202106-02) the Key Research and Development Program of Hebei Province(Grant No.20327313D)
主 题:distributor biogas slurry distribution uniformity rheological properties CFD
摘 要:A horizontal distributor for biogas slurry application was proposed to explore the distribution performance through CFD analysis and verified by field *** rheological properties of biogas slurry were analyzed at first,and key parameters were obtained for the next *** effects of distribution modes,inlet direction,and outlets number on the velocity distribution of flow field and mass flow rate of the horizonal distributor were investigated by CFD *** of rheological properties indicated that biogas slurry was a non-Newtonian fluid and exhibited shear-thinning *** can be well described by power-law *** simulation results showed that the geometry of rotor,especially the block numbers was the main factor that determining the fluid movement and trajectory of distribution and *** mode rotor 1 with two blocks reached the lowest variable coefficient of mass flow rate(4.49%),indicating a higher degree of *** upward inlet direction would obtain less dead zone,and the distributor with an even outlets number would possess more uniform distribution and less dead *** 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.