Computer modeling movement of biomass in the bioreactors with bubbling mixing

International Conference on Energy Engineering and Environmental Protection 2016

能源学;生态环境科学

Kuschev, L.A.^1 ; Suslov, D.Yu.^1 ; Alifanova, A.I.^1

Belgorod Shukhov State Technological University, Street Kostyukova, 46, Belgorod

308012, Russia^1

关键词: Acquisition process;    Agricultural enterprise;    Biogas technologies;    Ecological environments;    Evaluation experiments;    Experimental research;    Russian federation;    Technological parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/52/1/012025/pdf
DOI  :  10.1088/1742-6596/52/1/012025

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Recently in the Russian Federation there is an observation of the development of biogas technologies which are used in organic waste conversion of agricultural enterprises, consequently improving the ecological environment. To intensify the process and effective outstanding performance of the acquisition of biogas the application of systems of mixing of bubbling is used. In the case of bubbling mixing of biomass in the bioreactor two-phase portions consisting of biomass and bubbles of gas are formed. The bioreactor computer model with bubble pipeline has been made in a vertical spiral form forming a cone type turned upside down. With the help of computing program of OpenFVM-Flow, an evaluation experiment was conducted to determine the key technological parameters of process of bubbling mixing and to get a visual picture of biomass flows distribution in the bioreactor. For the experimental bioreactor the following equation of V=190 l, speed level, the biomass circulation, and the time of a single cycle of uax=0,029 m/s; QC=0,00087 m3/s, Δtbm.=159 s. In future, we plan to conduct a series of theoretical and experimental researches into the mixing frequency influence on the biogas acquisition process effectiveness.