ISBN 9783843926584

978-3-8439-2658-4, Reihe Raumfahrt

Gisela Detrell
Analysis and Simulation of a Synergetic Environmental Control and Life Support System for Long Duration Spaceflight

154 Seiten, Dissertation Universität Stuttgart (2015), Softcover, A5

Zusammenfassung / Abstract

Manned missions carried out in the last decades were either close to Earth or short missions. In contrast, Space Agencies future plans include manned exploration missions to asteroids, the Moon and finally Mars. The expected mission durations rise significantly and the greater distance from Earth makes a resupply or rescue mission almost impossible. These future plans make it necessary to develop a new Environmental Control and Life Support System (ECLSS), which ensures the survival of the astronauts for such missions. These frame conditions will impose a high degree of closure and a high reliability for the ECLSS.

After analyzing the different ECLSS technology/component options for a long duration human spaceflight, this thesis proposes a methodology to evaluate the Reliability of an ECLSS, based on the Stochastic Dynamic Discrete Simulation and the Multi-Objective Optimization Problem. These methodologies are applied in a new software, RELISSA (Reliability Environment for Life-Support Systems Simulation and Analysis), which includes a reliability database with 16 potential components. As an example, the software is used to compare different ECLSS for a manned Mars mission.