Mathematical model to estimate volumetric oxygen transfer coefficient in bioreactors using conformable calculus

نویسندگان

چکیده

This work proposes a novel mathematical model based on time conformable derivative convective mass transfer equation to calculate the volumetric oxygen coefficient (kLa) in bioreactor. To validate model, full mixed-level experimental design was proposed with two factors: agitation speed and dispersed phase. The employs derivate order operator (α) electrode constant (kp), which changes use operating conditions of results show that when viscosity increases decreases, value α increases, vice versa. Therefore, is parameter has physical meaning process. correlation data (R2 > 0.985) higher than one obtained conventional models. Akaike information criterion determined conformal describes by 59%, while models describe 25% 15%. There are no reports similar determine coefficients bioprocesses.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Development of a model to determine mass transfer coefficient and oxygen solubility in bioreactors

The objective of this paper is to present an experimentally validated mechanistic model to predict the oxygen transfer rate coefficient (Kla) in aeration tanks for different water temperatures. Using experimental data created by Hunter and Vogelaar, the formula precisely reproduces experimental results for the standardized Kla at 20 °C, comparatively better than the current model used by ASCE 2...

متن کامل

Mathematical Model for Calculating Oxygen Mass Transfer Coefficient in Diffused Air Systems

The key element in developing an analytical or mathematical procedure is to determine the main factors that possess potential importance in oxygen transfer process. In this paper, the factors that affect the oxygen mass transfer coefficient (KLa) in activated sludge units are determined. A dimensional analysis procedure is adopted to develop a mathematical model, which can be used for calculati...

متن کامل

Mathematical model for mass transfer coefficient determination in dissolution process

Mathematical models play an essential role in simulation of dynamic processes as they provide insights into the description and behaviour of real systems. Models of chemical processes are derived from laws of conservation, thermodynamic, and control design. In the present paper, we study the modelling of dissolution process determining the quasi steady state material balance for velocity profil...

متن کامل

Dynamic measurement of the volumetric oxygen transfer coefficient in fermentation systems.

Introduction Much has been written and said about the scale-up of fermentation systemsS). In general, it has been agreed that the best scale・,-up method is to maintain a constant voiumetric oxygen mass transfer coeMcient. The problem with this procedure has been the differing methods by which the transfer coeMelent has been obtained. Various investigators have used the su}fite oxidation2), pola...

متن کامل

Biomass effects on oxygen transfer in membrane bioreactors.

Ten biomass samples from both municipal and industrial pilot and full scale submerged membrane bioreactors (MBRs) with mixed liquor suspended solids concentrations (MLSS) ranging from 7.2 to 30.2g L(-1) were studied at six air-flow rates (0.7, 1.3, 2.3, 3, 4.4 and 6m(3)m(-3)h(-1)). Statistical analyses were applied to identify the relative impacts of the various bulk biomass characteristics on ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Revista Mexicana De Ingenieria Quimica

سال: 2022

ISSN: ['1665-2738', '2395-8472']

DOI: https://doi.org/10.24275/rmiq/bio2701