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KTH
Physics
"Man to Mars: A
perfect example of circular economy"
|
Date: |
Download-files: |
Time: |
|
Wednesday,
01.March 2017 |
Video-Recording for any system with MP4-support
- Video.mp4 (ca.262 Mb) |
15:15 – 16:00 |
Christophe
Lasseur
(ESA)
Abstract :
Pace is a very
hostile environment for man, and so far all the metabolic needs have to be
transported from
Earth. When considering very long term presence in space these masses
represent an
enormous mass not compatible with the performance of current launchers.
In
initiated in
1989, as a tool to gain understanding of closed life support, as well as the
development of
the technology for a future life support system.
The driving
element of MELiSSA is the production of food, water and oxygen from organic
waste (inedible
biomass, CO2, urea etc.). Inspired by the principle of an ”aquatic” ecosystem,
MELiSSA comprises
several processes, called compartments, from the anoxygenic fermenter
up to the
photosynthetic one (i.e. algae and higher plants).
The choise of
this compartmentalised structure is required by the very high level of safety
requirements and
justified by the need of an engineering approach and to build deterministic
control strategy.
During the past 27 years of research and development, a very progressive
approach has been
developed to understand, simulate, test and control the MELiSSA loop.
This approach
starts from the selection of processes, their characterisation and mathematical
modelling, the
validation of the control strategy, up to the demonstration on Earth, at pilot
scale
and leads to
preliminary flight experiments.
This presentation
recalls the main features of the project and summarises the recent
achievements.