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The paper deals with the performance data of the service module Zvezda water supply and urine collection systems of the International Space Station (ISS) as of December 31, 2002. The water supply and demand balance are analyzed. The data of humidity condensate and recovered water compositions are reviewed. The effective cooperation of the international partners on part of life support is shown.

The paper deals with the construction and performance data of the service module Zvezda water and oxygen supply systems of the International Space Station (ISS). The performance data at the first 14 months of manned station functioning are provided. The data of humidity condensate and recovered water compositions are reviewed. The water supply and demand balance are analyzed. The system of oxygen generation “Electron-VM” and its functioning results are reviewed. The effective cooperation of the international partners on part of life support is shown.

The paper deals with the construction and performance data of the service module Zvezda water supply system of the International Space Station (ISS). The performance data at an initial phase of manned station functioning are provided. The data on humidity condensate and recovered water composition are reviewed. The water supply and demand balance are analyzed. The effective cooperation of international partners on part of water supply for the crew is shown.

This paper reviews the design and properties of the Water Supply System (WSS). It also discusses the water balance and its delivery amounts, as well as it presents diagrams and properties of water recovery system from humidity condensate WRS-CM and regeneration from urine WRS-UM which are the part of WSS. Some results of activities conducted for provision of water intake in a system of WRS-CM from different modules of station are shown and the problems of WSS interaction of Russian segment (RS) and American segment (USOS) of the International Space Station (ISS) are discussed.

The paper reviews the results obtained with a Sievers-820 total organic carbon (TOC) analyzer during ground tests of the Mir water recovery system (WRS). Calibration analysis results for water solution samples of individual compounds, typical of spacecraft atmospheric humidity condensate, and their mixtures are provided. Comparison of the test results to the calculated data and laboratory analyses performed by other methods are made. Analyzer readings are in good agreement with the chemical analyses of initial condensate and recovered water. The analyzer shows promise as an instrument for ground and future onboard spacecraft testing.

At the initial phase of the construction of the international space station (ISS) water supply will be provided by the systems located in the Russian segment. The paper reviews the systems for water recovery from humidity condensate and urine to be incorporated in the Russian segment of the ISS. The similar systems have been successfully operated on the Mir space station. The updates aim at enhancing system cost-effectiveness and reliability. The system for water recovery from humidity condensate (WRS-C) features an added assembly for the removal of organic contaminants to be catalytically oxidized in an air/liquid flow at ambient temperature and pressure. The system for water reclamation from urine (WRS-U) incorporates a new distillation subsystem based on vacuum distillation with a multistage rotary distiller and a vapor compression or thermoelectric heat pump. The updating of the WRS-C system will enable an increase in the multifiltration bed's life at least two fold.

A concept of LSS building for planetary stations is suggested on the basis of experience in the development, research and testing of physical/chemical regenerative LSS for long-duration ground-based bio-technical complexes of habitat support and for orbiting space stations. A gradual transition from integrated physical/chemical regenerative LSS to hybrid integrated physical/chemical and bio-technical LSS and finally to integrated bio-technical regenerative LSS, is suggested. It is shown that at all phases of integrated LSS development, the systems based on physical/chemical processes will be critical for correlating the interfaces between the biological components that process the products obtained in the bio-components, and enabling the vitality of integrated LSS under emergency situations. The interface of integrated LSS with base power supply system is outlined.

The paper reviews an integrated system for space station water supply based on a combination of water recovery systems and a water resupply system. The water balance data and system performance data in long-duration operation on the Mir space station are presented. A water supply concept for the Russian's segment (RS) of the International Space Station (ISS) is substantiated.