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A System Dynamics Model of a Hybrid Life Support System

Zabel, Paul and Tajmar, Martin (2019) A System Dynamics Model of a Hybrid Life Support System. 49th International Conference on Environmental Systems, 07.-11. Juli 2019, Boston, Massachusetts.

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Official URL: https://ttu-ir.tdl.org/handle/2346/84804


The employment of bio-regenerative processes complemented with physical-chemical backup systems and vice versa is thought to have numerous advantages from the perspective of redundancy for the sustained human presence in space or on other planetary surfaces. These so called hybrid life support systems are a concert of many interdependencies and interacting feedback loops, which are challenging to operate in a desired range of set points. Furthermore, the complexity of such systems makes them vulnerable to perturbations. Applying system dynamics modelling to study hybrid life support systems is a promising approach. System dynamics is a methodology used to study the dynamic behaviour of complex systems and how such systems can be defended against, or made to benefit from, the shocks that fall upon them. This paper describes the development of a system dynamics model to run exploratory simulations, which can lead to new insights into the complex behaviour of hybrid life support systems. An improved understanding of the overall system behaviour also helps to develop sustainable, reliable and resilient life support architectures for future human space exploration. The developed model consists of various modules for different life support functions. The greenhouse module simulates plant cultivation. The crew module calculates the inputs and outputs of the crew, while the physical chemical systems module represents a number of life support technologies. All modules are interconnected to simulate a hybrid life support system in a future space habitat.

Item URL in elib:https://elib.dlr.de/128529/
Document Type:Conference or Workshop Item (Speech)
Title:A System Dynamics Model of a Hybrid Life Support System
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Zabel, PaulPaul.Zabel (at) dlr.dehttps://orcid.org/0000-0001-7907-9230
Tajmar, MartinTU DresdenUNSPECIFIED
Date:7 July 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:ECLSS modelling ECLSS simulation life support
Event Title:49th International Conference on Environmental Systems
Event Location:Boston, Massachusetts
Event Type:international Conference
Event Dates:07.-11. Juli 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Systemanalyse Raumsegment (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > System Analysis Space Segment
Deposited By: Zabel, Paul
Deposited On:24 Jul 2019 10:13
Last Modified:31 Jul 2019 20:26

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