CFD FLOW FIELD SIMULATION ANALYSIS BASED ON RHEOLOGICAL CHARACTERISTICS OF ANAEROBIC FERMENTATION MIXED RAW MATERIALS

被引：0

作者：

Sun H. ^{[1
]}

Chen G. ^{[1
]}

Liu S. ^{[2
]}

Wang C. ^{[2
]}

Hou J. ^{[1
]}

Wang Y. ^{[1
]}

机构：

[1] College of Mechanical & Electrical Engineering, Hebei Agricultural University, Baoding

[2] Hebei Animal Husbandry Station, Shijiazhuang

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 08期

关键词：

anaerobic fermentation; biomass energy; CFD; mixed raw materials; numerical analysis; viscosity;

D O I：

10.19912/j.0254-0096.tynxb.2022-0594

中图分类号：

学科分类号：

摘要：

In order to determine the movement characteristic of raw materials in the anaerobic fermentation reactor under different agitators，the rheological properties of pure chicken manure and mixed raw materials of chicken manure and corn stover with ratio of 1：4 （weight basis）under different total solid content were measured. Based on the rheological properties of mixed raw materials，the numerical simulation of four kinds of agitators were analyzed by using CFD. The results show that mixed raw materials is non-Newtonian fluids which is similar to the chicken manure，and its rheological properties can be characterized by power law model. The viscosity of mixed materials decreases with the increasing of siring speed，while the consistency coefficient and rheological index of mixed raw materials are lower than those of chicken manure. The six curved blade agitator has greater influence on the nearby flow field，and the dead zone of the six inclined blade disk turbine agitator is smallest. In addition，the six curved blade agitator has higher radial velocity than the six inclined blade agitator. © 2023 Science Press. All rights reserved.

引用

页码：542 / 549

页数：7

共 23 条

[21] ZHAO L L., Design and experimental study of CSTR impeller［D］, (2019)
[22] MINH T T T., Valorization of triticale straw biomass as reinforcement in proficient polypropylene biocomposites［J］, Waste and biomass valorization, 9, 10, pp. 1971-1983, (2018)
[23] ESHTIAGHI N，, Et al., CFD modeling of active volume creation in a non-newtonian fluid agitated by submerged recirculating jets［J］, Chemical engineering & technology, 41, 7, pp. 1441-1447, (2018)

← 1 2 3 →