Cited by 620Algal biology and biofuel productionFluid Dynamics and MixingAquatic Ecosystems and Phytoplankton Dynamics

Tubular photobioreactor design for algal cultures

Molina, E., Fernández, J., Acién, F.G., Chisti, Y.·2001·Journal of Biotechnology

Abstract

Principles of fluid mechanics, gas-liquid mass transfer, and irradiance controlled algal growth are integrated into a method for designing tubular photobioreactors in which the culture is circulated by an airlift pump. A 0.2 m(3) photobioreactor designed using the proposed approach was proved in continuous outdoor culture of the microalga Phaeodactylum tricornutum. The culture performance was assessed under various conditions of irradiance, dilution rates and liquid velocities through the tubular solar collector. A biomass productivity of 1.90 g l(-1) d(-1) (or 32 g m(-2) d(-1)) could be obtained at a dilution rate of 0.04 h(-1). Photoinhibition was observed during hours of peak irradiance; the photosynthetic activity of the cells recovered a few hours later. Linear liquid velocities of 0.50 and 0.35 m s(-1) in the solar collector gave similar biomass productivities, but the culture collapsed at lower velocities. The effect of dissolved oxygen concentration on productivity was quantified in indoor conditions; dissolved oxygen levels higher or lower than air saturation values reduced productivity. Under outdoor conditions, for given levels of oxygen supersaturation, the productivity decline was greater outdoors than indoors, suggesting that under intense outdoor illumination photooxidation contributed to loss of productivity in comparison with productivity loss due to oxygen inhibition alone. Dissolved oxygen values at the outlet of solar collector tube were up to 400% of air saturation.

Integrity signals

Registry

Crossref · 10.1016/s0168-1656(01)00353-4

Cites

31 of 31 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

5 of the 36 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Molina, E., Fernández, J., Acién, F. G., & Chisti, Y.
Affiliations
University of Almería (ES)
Venue
Journal of Biotechnology
Publisher
Elsevier BV
Published
2001-12
Volume
92
Issue
2
Pages
113-131
ISSN
0168-1656 (ISSN-L)
OpenAlex
W2052877210
Cited by
620
References
36
Citations by year
2026: 13 · 2025: 7 · 2024: 15 · 2023: 25 · 2022: 25 · 2021: 33 · 2020: 30 · 2019: 41 · 2018: 34 · 2017: 43 · 2016: 47 · 2015: 43 · 2014: 45 · 2013: 53 · 2012: 34
FWCI
5.90
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Engineering › Biomedical Engineering › Fluid Dynamics and Mixing
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
Keywords
tubular photobioreactor, algae cultivation, Phaeodactylum tricornutum, airlift pump, gas-liquid mass transfer, photoinhibition, dissolved oxygen, photooxidation, biomass productivity, dilution rate, liquid velocity, solar collectors, outdoor culture
MeSH terms
Biotechnology, Equipment Design, Sunlight, Photobiology, Biomass, Bioreactors, Eukaryota

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review