dc.creatorLara Cisneros, Gerardo
dc.creatorAguilar López, Ricardo
dc.creatorDochain, Denis
dc.creatorFemat Flores, Alejandro Ricardo
dc.date2019-01-11T19:47:23Z
dc.date2019-01-11T19:47:23Z
dc.date2016-11
dc.date.accessioned2023-07-17T22:03:03Z
dc.date.available2023-07-17T22:03:03Z
dc.identifierGerardo Lara-Cisneros, Ricardo Aguilar-López, Denis Dochain, Ricardo Femat, On-line estimation of VFA concentration in anaerobic digestion via methane outflow rate measurements, Computers & Chemical Engineering, Volume 94, 2016, Pages 250-256.
dc.identifierhttp://hdl.handle.net/11627/4857
dc.identifierhttps://doi.org/10.1016/j.compchemeng.2016.07.005
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7543354
dc.description"This paper deals with the design of a robust nonlinear observer as a software sensor to achieve the on-line estimation of the concentration of Volatile Fatty Acids (VFA) in a class of continuous anaerobic digesters (AD). Taking into account the limited availability of on-line sensors for AD process, in this contribution is assumed that only the methane outflow rate is available for on-line measurement. The estimation method is based on a modified version for a two-dimensional mathematical model of AD process. From the differential algebraic observability approach it is shown that the VFA concentration is detectable from the methane outflow rate measurements. The observer convergence is analyzed by using Lyapunov stability techniques. Numerical simulations illustrate the effectiveness of the proposed estimation method for a four-dimensional AD model with uncertainties associated with unmodeled dynamics and disturbances in the inflow composition."
dc.formatapplication/pdf
dc.languageeng
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAnaerobic digestion
dc.subjectState observer
dc.subjectVFA estimation
dc.subjectUncertain reaction systems
dc.subjectSoftware sensors
dc.subjectArea::INGENIERÍA Y TECNOLOGÍA
dc.titleOn-line estimation of VFA concentration in anaerobic digestion via methane outflow rate measurements
dc.typearticle


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