Investigation of distribution uniformity of distributor for biogas slurry application based on CFD analysis

作     者：Jingjing Fu Yongsheng Chen Binxing Xu Biao Ma Pengjun Wang Aibing Wu Mingjiang Chen 

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.