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Water Supply Assembly for Hermes ECLSS
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English
Abstract
The Water Supply Assembly (WSA) is part of the Liquid Management Section (LMS) of the Hermes Environmental Control and Life Support Subsystem (ECLSS) (see ref. [1] and [2]).
The WSA has to provide pure water for drinking and food preparation (rehydratation of dry food and beverage powder) and to provide pure water for hygiene purposes (oral hygiene and towel wetting).
To obtain different desired temperatures (as well as different quantities of water to be dispensed), a heating device, using electrical foils, and a cooling device, using a water/water heat exchanger have been designed with regard to the critical mass and power requirements. Two dispensers are used to fill food/beverage or hygiene (towels) containers.
As part of the Hermes C1 phase, breadboard models of the heating device (heater) and of the cooling device (chiller) have been manufactured and functionally tested.
This paper presents and describes the design concepts for the whole WSA and focuses on the main breadboard test results which have been obtained for the heater and for the chiller. The tests deal with thermal and hydraulic aspects as well as with the loop regulation. From these results, recommendations on the design concept optimization and on further development work are given.
Authors
Citation
Dubois, M., Mullender, B., Bekaert, G., Schneider, R. et al., "Water Supply Assembly for Hermes ECLSS," SAE Technical Paper 932071, 1993, https://doi.org/10.4271/932071.Also In
References
- WSA Final Report Phase C1 H-NT-1LCD-0023-SABC
- WSA Procurement Specification H-ST-1L-0038-DOR issue 2
- Water Conditioning Assembly for Hermes ECLSS Vandenstraeten P. Legros J-C Dubois M. Strittmatter R. 23nd ICES Conference
- “The Development Status of the Hermes Environmental Control and Life Support Subsystem” Schäffer R. 19th ICES Conference Paper 891547