Shear rate analysis of water dynamic in the continuous stirred tank

Tulus, Mardiningsih, Sawaluddin, O. S. Sitompul, Ahmad Kamal Ariffin Mohd Ihsan

Research output: Contribution to journalConference article

Abstract

Analysis of mixture in a continuous stirred tank reactor (CSTR) is an important part in some process of biogas production. This paper is a preliminary study of fluid dynamic phenomenon in a continuous stirred tank numerically. The tank is designed in the form of cylindrical tank equipped with a stirrer. In this study, it is considered that the tank is filled with water. Stirring is done with a stirring speed of 10rpm, 15rpm, 20rpm, and 25rpm. Mathematical modeling of stirred tank is derived. The model is calculated by using the finite element method that are calculated using CFD software. The result shows that the shear rate is high on the front end portion of the stirrer. The maximum shear rate tend to a stable behaviour after the stirring time of 2 second. The relation between the speed and the maximum shear rate is in the form of linear equation.

Original languageEnglish
Article number012048
JournalIOP Conference Series: Materials Science and Engineering
Volume308
Issue number1
DOIs
Publication statusPublished - 19 Feb 2018
Event10th International Conference on Numerical Analysis in Engineering, NAE 2017 - Banda Aceh, Indonesia
Duration: 24 Aug 201725 Aug 2017

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Shear deformation
Water
Biofuels
Biogas
Fluid dynamics
Linear equations
Computational fluid dynamics
Finite element method

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Shear rate analysis of water dynamic in the continuous stirred tank. / Tulus; Mardiningsih; Sawaluddin; Sitompul, O. S.; Mohd Ihsan, Ahmad Kamal Ariffin.

In: IOP Conference Series: Materials Science and Engineering, Vol. 308, No. 1, 012048, 19.02.2018.

Research output: Contribution to journalConference article

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