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Optimized Phase Change Material Module for Thermal Regulation of Cycled Dissipative Units
(49th International Conference on Environmental Systems, 2019-07-07)
Phase Change Materials are very good candidates to smooth temperature variations of units which undergo thermal cycling dissipations or external cycling thermal loads. They can also be used to damped fast but short thermal ...
Continued Development and Validation of the Virtual Spacesuit Using Apollo 17 Data
(2020 International Conference on Environmental Systems, 2020-07-31)
This paper documents the continued development and further validation of a spacesuit simulation system called the Virtual Spacesuit (V-SUIT). V-SUIT is a MATLAB® application that combines models of a spacesuit pressure ...
Thermal Systems Modeling of Chemical Heat Integrated Power Source (CHIPS) to Survive Lunar Night Environments
(50th International Conference on Environmental Systems, 7/12/2021)
Herein we present the thermal systems modeling of Chemical Heat Integrated Power Systems (CHIPS) to survive lunar night environments. The objective is to deliver at least 100 thermal Watts and 30~40 electric Watts for 336 ...
Development Status of the Thermal Layer of the Dynamic Life Support System Simulation V-HAB
(45th International Conference on Environmental Systems, 2015-07-12)
The Virtual Habitat project (V-HAB) at the Technische Universit ̈at Mu ̈nchen (TUM) aims to develop a dynamic simulation environment for life support systems (LSS). The modular structure of the tool allows the combination ...
Development of a Test for Evaluation of the Hydrothermal Stability of Sorbents used in Closed-Loop CO2 Removal Systems
(45th International Conference on Environmental Systems, 2015-07-12)
The International Space Station Carbon Dioxide Removal Assembly uses zeolite 5A molecular sieve material packed into beds for the capture of cabin CO2. The beds are cyclically heated to drive off the CO2 and restore the ...
Membrane Distillation Bags for Water Recovery in Trash Compaction and Processing Systems
(49th International Conference on Environmental Systems, 2019-07-07)
The National Aeronautics and Space Administration’s (NASA) crewed spacecraft use containers to store waste derived from food, water, and other supplies. The trash bags occupy a large volume and present a significant ...
Comparison of a Discontinuity with Various Patch Methods for Multilayer Insulation Blankets
(48th International Conference on Environmental Systems, 2018-07-08)
Multilayer Insulation (MLI) blankets used in passive thermal control for cryogenic and space applications require cutouts, slits, and features in order to conform to the shape of the structure to which they are being ...
Development of an Automated Thermal Model Correlation Method and Tool
(45th International Conference on Environmental Systems, 2015-07-12)
An essential part in the development of a spacecraft is the establishment of a thermal model for the thermal design and the temperature predictions during the operation phase. In order to improve the accuracy of the ...
Low-maintenance, consumables-free disinfection by UV-C LEDs
(48th International Conference on Environmental Systems, 2018-07-08)
Ultraviolet (UV) disinfection has long been known as a chemical-free disinfection process capable of producing a 6-log reduction effect. Conventional UV sources, often called germicidal lamps, consist of a mercury amalgam ...
Gravity-Invariant Condition of Water Sublimator Characteristic Parameter Design: Analysis and Experiment
(46th International Conference on Environmental Systems, 2016-07-10)
Water sublimator is a kind of thermal control device, which takes advantage of the high latent heat of water and can reject spacecraft waste heat by evaporating/sublimating water to vacuum environment. Thus, sublimator ...