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Modeling an airlift reactor for the growing of microalgae
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology.ORCID iD: 0000-0001-8241-2225
2018 (English)In: Open Chemical Engineering Journal, ISSN 1874-1231, Vol. 12, no 1, p. 80-94Article in journal (Refereed) Published
Abstract [en]

Objective: The flow dynamics of an airlift reactor for the growing of microalgae is modeled using Computational Fluid Dynamics (CFD). The model is applied to the operation and optimization of the reactor, giving a valuable picture of the liquid movement and carbon dioxide trajectory at different air injection flow rates. Methods: A novel aspect of the model is that air and carbon dioxide are injected at separated locations. Air is injected at the bottom of the reactor and CO 2 injection takes place in the downcomer region of the reactor to obtain longer CO 2 paths, improving its transference. Results: The results show modeling is a useful tool in the control of the reactor operation; for example, in avoiding the sedimentation of microalgae or for detecting the existence of zones with extremely low CO 2 concentrations.

Place, publisher, year, edition, pages
Bentham Science Publishers B.V. , 2018. Vol. 12, no 1, p. 80-94
Keywords [en]
Biofuel, Bubble column reactor, CFD, Fluent, Microalgae, Modeling, Photo-bioreactor
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-246504DOI: 10.2174/1874123101812010080Scopus ID: 2-s2.0-85061527047OAI: oai:DiVA.org:kth-246504DiVA, id: diva2:1300586
Note

QC 20190329

Available from: 2019-03-29 Created: 2019-03-29 Last updated: 2019-03-29Bibliographically approved

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Moreno, Luis

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