Combination of Physico-Chemical Life Support Systems with Space Greenhouse Modules: A System Analysis

2013 ◽  
Author(s):  
Paul Zabel ◽  
Daniel Schubert ◽  
Martin Tajmar
Keyword(s):  
System Analysis ◽  
Life Support ◽  
Support Systems ◽  
Life Support Systems ◽  
Physico Chemical

PRELIMINARY ESTIMATION OF COMBINED EXPENSES ON RESEARCH AND DEVELOPMENT OF HIGH-RELIABILITY PHYSICO-CHEMICAL LIFE SUPPORT SYSTEMS FOR REMOTE SPACE MISSIONS WITH REGARD TO COMMON CAUSE FAILURES

2021 ◽  
Vol 55 (4) ◽  
pp. 91-98
Author(s):  
N.S. Kudryavtseva ◽  
◽  
А.Е. Sorokin ◽  
Keyword(s):  
Cost Estimation ◽  
Life Support ◽  
Support Systems ◽  
Traditional Approach ◽  
High Reliability ◽  
Life Support Systems ◽  
Common Cause ◽  
Physico Chemical ◽  
Common Cause Failures ◽  
The Cost

We have made a preliminary comprehensive cost estimation for reliability of life support systems (LSS) in 1000-d remote space exploration missions with the loss-of-crew probability at 0.0001 due to failure of hybrid, partly and maximally closed-loop LSSs currently used onboard the ISS Russian segment. Comprehensive cost of a simplified test program is 5-times higher than cost of any LSS. A beta-factor parametric model was used to analyze LSS reliability against common cause failures (CCFs) when reiterative redundancy cannot provide superhigh reliability. It appears that the required reliability against CCFs is achievable on the diversification principle, i.e. reiterative diverse redundancy of basic LSS technologies. The estimated LSS cost is twice as much in comparison with the traditional approach that takes into account independent failures only. Diverse inherent cold redundancy can reduce the cost about 30 % provided that R&D expenses on regenerative subsystems are equal.

Жизнеобеспечение экипажа пилотируемого космического объекта, проблемы управления

2019 ◽  
pp. 109-120
Author(s):  
Boris F. ZARETSKIY ◽  
Arkadiy S. GUZENBERG ◽  
Igor A. SHANGIN
Keyword(s):  
Control System ◽  
Life Support ◽  
Support Systems ◽  
Space Missions ◽  
Automated System ◽  
Deep Space ◽  
Automated Control ◽  
Life Support Systems ◽  
Long Duration ◽  
Space Life Support

Life support for first manned spaceflights was based on supplies of consumables. Crew life support systems based on supplies of water and oxygen, in spite of their simplicity, are extremely inefficient in orbital space missions and are unfeasible in deep space missions because of mass and volume constraints. Therefore, there are currently developed and are to be used on space stations the life support systems that are based on chemical and physical regeneration of water and oxygen extracted from human waste. In view of further advances in long-duration orbital stations, and the prospects of establishment of planetary outposts and deep space exploration, the problem of constructing an automated system for controlling a suite of regenerative LSS becomes urgent. The complexity of solving the problem of constructing an efficient control system in this case owes to the existence of a large number of effectiveness criteria. The paper proposes a system of consolidated global efficiency criteria, which allows to break up this problem into a series of sub-problems of optimization in order to solve this problem. The proposed criteria are longevity, cost, comfort. The paper presents a series of specific examples of using the proposed principles with necessary generalizations. Key words: space life support systems, atmosphere revitalization equipment, automated control system, global generalized efficiency criteria, longevity, cost, comfort.

Aircrew Life Support Systems Enhancement

1990 ◽  
Author(s):  
Jr. Krutz ◽  
Nesthus Robert W. ◽  
Scott Thomas E. ◽  
Webb William R. ◽  
Noles James T. ◽  
...  
Keyword(s):  
Life Support ◽  
Support Systems ◽  
Life Support Systems

Portable Life Support System: Current Status and Future Perspectives

2020 ◽  
Vol 14 (1) ◽  
pp. 12-28
Author(s):  
Jingang Jiang ◽  
Yihao Chen ◽  
Xuefeng Ma ◽  
Yongde Zhang ◽  
Zhiyuan Huang ◽  
...  
Keyword(s):  
Support System ◽  
Life Support ◽  
Support Systems ◽  
Vital Signs ◽  
Current Status ◽  
Life Support System ◽  
Life Support Systems ◽  
Special Circumstances ◽  
And Control ◽  
Further Development

Background: Portable life support system is used in the battlefield, disaster and in other special circumstances such as in space exploration, and underground survey to give the wounded a life support. The most dangerous period for the injured is the first hour after an injury, which is a crucial time for treatment. If the patient's vital signs were stabilized, more than 40% of the injured could be saved. The staff can efficiently complete the task if they get effective and stable vital signs during the operation. Therefore, in order to reduce the risk of disaster and battlefield mortality to improve operational safety and efficiency, it is necessary to study the portable life support system. Objective: The study aimed to provide an overview of recent portable life support system and its characteristics and design. Methods: This paper introduces the patents and products related to a portable life support system, and its characteristics and application. Results: This paper summarizes five kinds of portable life support systems which are box type, stretcher type, bed type, backpack type and mobile type. Moreover, the characteristics of different portable life support systems are analyzed. The paper expounds the problems of different types of portable life support systems and puts forward improvement methods to solve the problems. Finally, the paper points out the future development of the system. Conclusion: Portable life support system plays an increasingly important role in health care. In terms of the structure, function and control, further development and improvements are needed, along with the research on portable life support system.

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