Keyword: Life support systems

Briefs: Mechanical & Fluid Systems
Compact Regenerative Blower

The regenerative blower provides air flow through structures or systems that have relatively high flow resistance. Specifically, the regenerative blower was designed to provide a flow of ventilation gas through a spacesuit and its portable life support system (PLSS). Since the ventilation gas is primarily oxygen, fire...

Briefs: Mechanical & Fluid Systems
Metabolic Heat Regenerated Temperature Swing Adsorption

Two fundamental problems facing the development of a portable system to sustain life on extraterrestrial surfaces are (1) heat rejection and (2) rejection of metabolically produced CO2 to an environment with a ppCO2 of 0.4 to 0.9 kPa as is present on Mars. Portable...

Briefs: Manufacturing & Prototyping
Advanced Hybrid Spacesuit Concept Featuring Integrated Open Loop and Closed Loop Ventilation Systems

A document discusses the design and prototype of an advanced spacesuit concept that integrates the capability to function seamlessly with multiple ventilation system approaches. Traditionally, spacesuits are designed to operate both dependently...

Who's Who: Aerospace

Dr. Leslie Bebout works as a microbial ecologist in the Exobiology Branch at NASA’s Moffett Field, CA-based Ames Research Center. She and her colleagues study...

Briefs: Manufacturing & Prototyping
Next-Generation MKIII Lightweight HUT/Hatch Assembly

The MK III (H-1) carbon-graphite/ epoxy Hard Upper Torso (HUT)/Hatch assembly was designed, fabricated, and tested in the early 1990s. The spacesuit represented an 8.3 psi (≈58 kPa) technology demonstrator model of a zero prebreathe suit. The basic torso shell, brief, and hip areas of the...

Articles: Manufacturing & Prototyping

Garrett Finney moved the office coffeemaker into the full-size, cardboard mockup of the new trailer he was designing. The need for caffeine — and the threat of hot coffee accidentally...

Briefs: Physical Sciences
Water Treatment Systems for Long Spaceflights

Space exploration will require new life support systems to support the crew on journeys lasting from a few days to several weeks, or longer. These systems should also be designed to reduce the mass required to keep humans alive in space. Water accounts for about 80 percent of the daily mass intake...

Briefs: Software
ALSSAT Version 6.0

Advanced Life Support Sizing Analysis Tool (ALSSAT) at the time of this reporting has been updated to version 6.0. A previous version was described in “Tool for Sizing Analysis of the Advanced Life Support System” (MSC- 23506), NASA Tech Briefs, Vol. 29, No. 12 (December 2005), page 43. To recapitulate: ALSSAT is a...

Briefs: Physical Sciences
Cavitating Jet Method and System for Oxygenation of Liquids

Reclamation and re-use of water is critical for space-based life support systems. A number of functions must be performed by any such system including removal of various contaminants and oxygenation. For long-duration space missions, this must be done with a compact, reliable system...

Articles: Aerospace

The Marshall Space Flight Center (MSFC), located in Huntsville, AL, became a NASA field center on July 1, 1960. Since then, Marshall has provided the agency with the mission-critical design, development, and...

Briefs: Green Design & Manufacturing

A regenerable approach to separate carbon dioxide from other cabin gases by means of cooling until the carbon dioxide forms carbon dioxide ice on the walls of the physical device has been...

Briefs: Materials
A Computer Model for Analyzing Volatile Removal Assembly

A computer model simulates reactional gas/liquid two-phase flow processes in porous media. A typical process is the oxygen/wastewater flow in the Volatile Removal Assembly (VRA) in the Closed Environment Life Support System (CELSS) installed in the International Space Station (ISS). The...

Who's Who: Aerospace

In 2001, NASA engineer Michael Ewert developed and patented a unique solar-powered vapor-compression refrigeration system that...

Briefs: Manufacturing & Prototyping

Plasma pyrolysis of methane has been investigated for utility as a process for producing hydrogen. This process was conceived as a means of recovering hydrogen from methane produced as a...

Briefs: Green Design & Manufacturing

A microwave plasma reactor was developed for the recovery of hydrogen contained within waste methane produced by Carbon Dioxide Reduction Assembly (CRA), which reclaims oxygen from carbon dioxide....

Briefs: Physical Sciences

In the polar regions of the Moon, some areas within craters are permanently shadowed from solar illumination and can drop to temperatures of 100 K or lower. These...

Briefs: Electronics & Computers
Lunar Dust-Tolerant Electrical Connector

An electrical connector was developed that is tolerant of the presence of lunar dust. Novel features of the connector include the use of a permeable membrane to act both as a dust barrier and as a wiper to limit the amount of dust that makes its way into the internal chamber of the connector. The...

Briefs: Green Design & Manufacturing

A fine-water-mist fire-suppression device developed at John H. Glenn Research Center can be discharged uniformly in any orientation via a high-pressure gas propellant. Research...

Articles: Medical

Advances in medical design are paving the way for diagnostic and treatment options that previously were thought to be impossible. Today, surgeons, emergency medical...

Briefs: Materials
Electrocatalytic Reduction of Carbon Dioxide to Methane

A room-temperature electrocatalytic process that effects the overall chemical reaction CO2 + 2H2O → CH4 + 2O2 has been investigated as a means of removing carbon dioxide from air and restoring oxygen to the air. The process was originally...

Briefs: Green Design & Manufacturing

A room-temperature electrocatalytic process has been investigated as a means of removing carbon dioxide from air and restoring oxygen to the air. The process was originally intended for...

Briefs: Medical

The Expert System is an enclosed, controlled environment for growing plants, which incorporates a computerized, knowledge-based software program that is designed to capture the...

Briefs: Medical
Novel Species of Non-Spore-Forming Bacteria

While cataloging cultivatable microbes from the airborne biological diversity of the atmosphere of the Regenerative Enclosed life-support Module Simulator (REMS) system at Marshall Space Flight Center, two strains that belong to one novel bacterial species were isolated. Based on 16S rRNA gene...

Briefs: Medical

A design has been formulated for a proposed improved version of an apparatus that simulates atmospheric effects of human respiration by introducing controlled amounts of carbon dioxide, water vapor, and...

Application Briefs: Physical Sciences
DynaJets® and DynaSwirl® cavitating jet technologies
DynaFlow
Jessup, MD
301-604-3688
www.dynaflow-inc.com

Water is a critical product of...

Briefs: Software

Livingstone2 is a reusable, artificial intelligence (AI) software system designed to assist spacecraft, life support systems, chemical plants, or other complex systems by operating with...

Who's Who: Aerospace

NASA plans to return to the Moon by 2020. For a sustained lunar presence, however, astronauts need habitats that can support them and their experments. To this end,...

Briefs: Electronics & Computers

A prototype helmet audio system has been developed to improve voice communication for the wearer in a noisy environment. The system was originally intended to be used in a space suit, wherein noise...

Briefs: Mechanical & Fluid Systems
Spacecraft Escape Capsule

A report discusses the Gumdrop capsule — a conceptual spacecraft that would enable the crew to escape safely in the event of a major equipment failure at any time from launch through atmospheric re-entry. The scaleable Gumdrop capsule would comprise a command module (CM), a service module (SM), and a crew escape...