Design and Operation Overview of 4-person 180-day Integrated Experiment in Controlled Ecological Life Support System
Zhang Liangchang
Li Ting
Yu Qingni
Dong Wenping
Yang Jingsong
Wang Weirong
Ai Weidang
Wu Chongyang
Guo Shuangsheng
Li Yinghui
Abstract：Objective To explore the key technologies of integrated bio-regenerative and physical-chemical regenerative life support system, and investigate the performance of the Controlled Ecological Life Support System (CELSS) with multiple crews in long-term experiment, and to meet the engineering demands of life support system application in extraterrestrial base. Methods A closed ecological-cycle experiment platform with environment control, material-circulation and life support application was established. Based on the CELSS platform, this study assessed the material-circulation and its dynamic balance regulation when the life support function changed from physical-chemical regeneration to bio-regeneration through 40 d simulated and 180 d manned experiments. Results The long-term results of total 220 d experiments indicated that the environment parameters were controlled under the safe level, and the effective and independent control of the environment for crew and plant survival was achieved. During the 180 d manned experiment, the material-circulation kept at a steady state and achieved high-effective regeneration rate, including 100％ atmospheric and 100％ water regeneration rate, 55％ food closure rate and 87.7％ solid waste recycle rate. Conclusion The long-term integrated experiment verified the entire process of CELSS integrated technologies, covering design, construction and operation. It accumulated valuable engineering experience for the future technology development and application.
Keywords：Controlled Ecological Life Support Systemintegrated experimentmaterial-closure
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 273-281 )