‘Design and operation of an algal photobioreactor system’.
Open accessAbstract
A photobioreactor system has been designed, constructed, and implemented to achieve efficient oxygen production for a closed ecological life support system (CELSS). The special features of this system are the optical transmission system, uniform light distribution, continuous cycling of cells, gravity-independent gas exchange, and an ultrafiltration unit. The fiber optic based optical transmission system illuminates the reactor internally and includes a light source which is external to the reactor, preventing heat generation problems. Uniform light distribution is achieved throughout the reactor without interfering with the turbulent regime inside. The ultrafiltration unit exchanges spent with fresh media and its use results in very high cell densities, up to 10(9) cells/ml for Chlorella vulgaris. The prototype photobioreactor system was operated in a batch and continuous mode for over two months. The oxygen production rate measured at 4-6 mmoles per liter of the culture per hour under continuous operation, is consistent with the expected performance of the unit for the provided light intensity.
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Most PBR experiments were done in lab up to pilot scale (100 mL to 83 L) and these volumes were not sufficient to provide 100% of the O2 need of a crew member.
“But also in the PBR research, most experiments were done in lab up to pilot scale (100 mL up to 83 L, Tables 1–4) and these volumes were not sufficient to provide 100% of the O2 need of a crew member (Javanmardian and Palsson, 1992; Alemany et al., 2019).”
From Use of Photobioreactors in Regenerative Life Support Systems for Human Space Exploration (2021) · cites this paper as Javanmardian and Palsson, 1992
The Photobioreactor Design section describes a 600 mL prototype, and the Results report oxygen production of 4–6 millimoles per liter per hour—well below the approximately one mole per hour needed by a person, as stated in Order of Magnitude Calculations. The paper does not establish that most PBR experiments used volumes of 100 mL to 83 L, or that every reactor in that range was insufficient; it estimates that an improved 20 L unit could support a person. Page numbers are not available for these passages in our copy. (LLM, conf=0.86)
Experimental — accuracy not yet measuredJavanmardian and Palsson (1992) showed that a 200 L PBR containing Chlorella vulgaris is able to meet gas exchange needs of one human, and proposed it could be downsized to a 20 L tank reactor with optimized illumination.
“Javanmardian and Palsson (1992) showed that a 200 L PBR (calculated from a 600 mL prototype) containing Chlorella vulgaris is able to meet the gas exchange needs of one human and they proposed that the system could be downsized to a 20 L Chlorella vulgaris tank reactor if equipped with an optimized illumination system and regime.”
From Use of Photobioreactors in Regenerative Life Support Systems for Human Space Exploration (2021) · cites this paper as Javanmardian and Palsson, 1992
Javanmardian and Palsson (1992) measured oxygen production rate under continuous operation (4-6 mmol/L*h) that meets expectations.
“The measured oxygen production rate under continuous operation (4–6 mmol/L*h) meets the expectations”
From Use of Photobioreactors in Regenerative Life Support Systems for Human Space Exploration (2021) · cites this paper as Javanmardian and Palsson, 1992
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Cites
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High-density algal photobioreactors using light-emitting diodes
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Use of Photobioreactors in Regenerative Life Support Systems for Human Space Exploration
Fahrion, J., Mastroleo, F., Dussap, C.-G., & Leys, N. (2021) · Frontiers in Microbiology · doi:10.3389/fmicb.2021.699525 · Cited by 64 · see citing works
‘Photobioreactors in life support systems.
Wagner, I., Braun, M., Slenzka, K., & Posten, C. (2015) · Advances in Biochemical Engineering/Biotechnology · doi:10.1007/10_2015_327 · Cited by 21 · see citing works
- Authors
- Javanmardian, M., & Palsson, B. Ø.
- Affiliations
- University of Michigan (US)
- ORCID
- Palsson, Bernhard Ø.
- Venue
- Advances in Space Research
- Publisher
- Elsevier BV
- Published
- 1992-01
- Volume
- 12
- Issue
- 5
- Pages
- 231-235
- ISSN
- 0273-1177 (ISSN-L)
- OpenAlex
- W1967105232
- Cited by
- 27
- References
- 10
- Citations by year
- 2024: 1 · 2023: 1 · 2022: 1 · 2021: 5 · 2020: 1 · 2019: 1 · 2018: 3 · 2016: 2 · 2015: 1 · 2013: 1
- FWCI
- 2.18
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Advances in Space Research (publishedVersion)
- PubMed (publishedVersion)
- Deep Blue (University of Michigan) (submittedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Engineering › Biomedical Engineering › Fluid Dynamics and Mixing
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Greenhouse Technology and Climate Control
- Keywords
- algal photobioreactors, oxygen production, closed ecological life support systems, Chlorella vulgaris, ultrafiltration, cell density, spacecraft life support
- MeSH terms
- Biotechnology, Carbon Dioxide, Chlorella, Chlorophyll, Equipment Design, Life Support Systems, Light, Oxygen, Photosynthesis, Space Flight, Weightlessness, Ecological Systems, Closed
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