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MELISSA: Behavior of the Ecosystem Under Different Light Radiant Energy Inputs
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Abstract
The MELiSSA (Microbial Ecological Life Support System Alternative) project was designed as an early model of a future artificial ecosystem for long-term space missions. It centres on the recovery of edible biomass from waste, CO2 and minerals, with direct use of light as a source of energy for photosynthesis. MELiSSA is composed of four axenic compartments colonized by microorganisms, and a fifth compartment formed by the crew on board the craft.
Simulation of the entire MELiSSA loop had been performed to obtain mass fluxes and concentrations of microorganisms, and liquid and gas components in all the system streams. This first approach helped to define the process conditions necessary to obtain complete recycling of nitrogen or regeneration of the atmosphere.
This paper reports on the simulation of the behaviour of the loop when the photosynthetic compartment is working under various light-limiting conditions. As the radiant light energy flux is increased, the carbohydrate composition of the biomass changes radically. The description of the compartments is modified to allow for these changes in biomass composition and to calculate the percentage of closure of the loop (nitrogen recycling, oxygen regeneration and CO2 reduction) as a function of radiant light energy flux.
In addition, the experimental results obtained on the other compartments are taken into account, providing a reviewed assessment of the performance of the MELiSSA loop.
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Citation
Poughon, L., Dussap, C., Cornet, J., and Gros, J., "MELISSA: Behavior of the Ecosystem Under Different Light Radiant Energy Inputs," SAE Technical Paper 941347, 1994, https://doi.org/10.4271/941347.Also In
References
- DUSSAP C. G. CORNET J.F. GROS J.B. “Simulation of mass fluxes in the MELiSSA microorganism based ecosystem” SAE TECHNICAL PAPER SERIES 932125 1993
- Life support and habitability manual 1 1991
- KIHM E. DEVIDTS G. MILAN H. DECARLI B. ADINE A.M. CAMBRAY M.C. POLYAKOV V. AGUREEV A. “Nutritional behaviour of people during a two month duration isolation and confinement Simulation” SAE TECHNICAL PAPER SERIES 932067 1993
- HUTTENBACH R.C. BINOT R.A. “ESA PSS 03406: Life support and habitability manual” Proceedings of the 4th European Symposium on space environmental and control systems Florence, Italy 1991
- GOTTSCHALK G. “Bacterial metabolism” second Springer Verlag Berlin 1986
- KUNST S. MURDAC K. “Elimination of nitrogen and phosphorus by microorganisms” in Biotechnology 6 REHM H.J. ed. 1988
- CORNET J.F. “Modeling of physical limitation in photobioreactors” Technical note 19.2 MELiSSA contract PRF130.820 1992
- CORNET J.F. Orsay, France 1992
- CORNET J.F. DUBERTRET G.
- GEVANTMAN L.H. “Solubility of selected gases in water” Handbook of Chemistry and Physics 72nd LIDE D.R. ed. 1992
- Life support and habitability manual 2 1991
- D'AURIA R. MALOSTI T. “A combined cabin/avionic air loop design for the space station logistic module” Proceedings of the 4th European Symposium on space environmental and control systems Florence, Italy 1991