SCIENTIFIC AND TECHNICAL AEROSPACE REPORTS
A Biweekly Publication of the National Aeronautics and Space Administration
VOLUME 43, ISSUE 18 - SEPTEMBER 09, 2005
16 SPACE TRANSPORTATION AND SAFETY
Includes passenger and cargo space transportation, e.g., shuttle operations; and space rescue techniques.
For related information see also 03 Air Transportation and Safety; 15 Launch Vehicles and Launch Operations; and 18 Spacecraft Design, Testing and Performance.
For space suits see 54 Man/System Technology and Life Support.
20050206344 NASA, Washington, DC, USA
Formaldehyde Concentration Dynamics of the International Space Station Cabin Atmosphere
Perry, J. L.; [2005]; 8 pp.; In English; 35th International Conference on Environmental Systems, 11-14 Jul. 2005, Rome, Italy Report No.(s): SAE-2005-01-3091; Copyright; Avail: Other Sources
Formaldehyde presents a significant challenge to maintaining cabin air quality on board crewed spacecraft. Generation sources include offgassing from a variety of non-metallic materials as well as human metabolism. Because generation sources are pervasive and human health can be affected by continual exposure to low concentrations, toxicology and air quality control engineering experts jointly identified formaldehyde as a key compound to be monitored as part the International Space Station’s (ISS) environmental health monitoring and maintenance program. Data acquired from in-flight air quality monitoring methods are the basis for assessing the cabin environment’s suitability for long-term habitation and monitoring the performance of passive and active controls that are in place to minimize crew exposure. Formaldehyde concentration trends and dynamics served in the ISS cabin atmosphere are reviewed implications to present and future flight operations discussed. Author
Formaldehyde; Cabin Atmospheres; Quality Control; International Space Station; Environmental Monitoring; Active Control; Air Quality; In-Flight Monitoring
20050206357 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery L-1 Countdown Status Briefing
July 12, 2005; In English; 25 min., 47 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V02, Videotape-VHS; B02, Videotape-Beta
The STS-114 Discovery countdown status briefing is shown. Jessica Rye, NASA Public Affairs, introduces the panel. Jeff Spaulding, NASA Test Director, talks about the launch window and vehicle readiness for the flight. Scott Higgenbotham, Payload Manager, expresses that there are no hardware issues affecting the launch, and KathyWinters, ShuttleWeather Officer, gives the launch weather forecast and talks about weather issues that may or may not affect the launch. CASI
Countdown; Space Transportation System; NASA Space Programs; Discovery (Orbiter)
20050206397 NASA Kennedy Space Center, Cocoa Beach, FL, USA
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STS-114: Discovery Launch Readiness Press Conference J
uly 11, 2005; In English; 46 min., 42 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
This press conference, attended by representatives from the national, Florida, and aerospace media, addresses launch, weather, and safety issues related to Space Shuttle Discovery prior to its launch on the STS-114 Return to Flight mission. The Master of Ceremonies is George Diller from NASA Public Affairs, and the panelists are: Space Shuttle Program Manager Bill Parsons, ISS Program Manager (JSC) Bill Gerstenmaier, Space Shuttle Deputy Program Manager Wayne Hale, Director of Shuttle Processing Mike Wetmore, ISS Program Manager (JAXA) Dr. Kuniaki Shiraki, and Launch Weather Officer (USAF) Mindy Chavez. Questions included the following topics: predicted weather conditions at launch, contingency rescue plans, countdown procedures, and risk management, as well as implications of the Return to Flight for the International Space Station (ISS). CASI
Discovery (Orbiter); Spacecraft Launching; Space Transportation System
20050207328 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Launch Postponement Press Briefing
July 13, 2005; In English; 33 min., 23 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
This press briefing addresses the problem that occurred prior to the launch of the STS-114. Dean Acosta, Deputy Assistant Administrator of Public Affairs, introduces the panel which consists of Dr. Michael Griffin, NASA Administrator, William Readdy, Associate Administrator for Space Operations, Wayne Hale, Space Shuttle Program Deputy Manager, Steve Poulas, Orbiter Project Manager, Mike Leinbach, NASA Launch Director, and Bill Parsons, Space Shuttle Program Manager. Wayne Hale expresses that a problem occurred with one of the low level sensors in the hydrogen tank and that the cause of the problem must be identified and rectified. Steve Poulos talks about establishing a troubleshooting plan as a part of the scrub effort and Mike Leinbach describes the process of draining the external tank.Wayne Hale answers questions about the sensors and if the Space Shuttle Discovery is safe to fly and Steve Poulos answers questions about the possible suspects for this problem. CASI
Discovery (Orbiter); External Tanks; Space Transportation System; Spacecraft Launching; NASA Space Programs
20050207387 NASA Marshall Space Flight Center, Huntsville, AL, USA
Space Shuttle Main Engine Debris Testing Methodology and Impact Tolerances
Gradl, Paul R.; Stephens, Walter; May 16, 2005; 9 pp.; In English; 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 10-13 Jul. 2005, Tucson, AZ, USA; No Copyright; Avail: CASI; A02, Hardcopy
In the wake of the Space Shuttle Columbia disaster every effort is being made to determine the susceptibility of Space Shuttle elements to debris impacts. Ice and frost debris is formed around the aft heat shield closure of the orbiter and liquid hydrogen feedlines. This debris has been observed to liberate upon lift-off of the shuttle and presents potentially dangerous conditions to the Space Shuttle Main Engine. This paper describes the testing done to determine the impact tolerance of the Space Shuttle Main Engine nozzle coolant tubes to ice strikes originating from the launch pad or other parts of the shuttle. Author
Space Shuttle Main Engine; Impact Tolerances; Debris; Ice; Frost; Heat Shielding; Feed Systems
20050207425 NASA Kennedy Space Center, Cocoa Beach, FL, USA
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STS-114: Discovery Mission Status Briefing
July 11, 2005; In English; 1hr., 20 min. playing time, in color, with sound; No Copyright; Avail: CASI; V04, Videotape-VHS; B04, Videotape-Beta
This video features mid-deck payloads being stowed at Pad 39B, a ribbon cutting ceremony at the NASA Shuttle Launch Facility (SLF) Air Traffic Control Tower and footage of the air traffic control radar constructed at Shiloh.
The STS-114 Crewmembers, Commander, Eileen Collins, Pilot, James Kelly, Mission Specialist, Charles Camarda, Mission Specialist, Wendy Lawrence, Mission Specialist, Soichi Noguchi, JAXA, Mission Specialist, Stephen Robinson, and Mission Specialist Andrew Thomas are shown arriving at the Shuttle Landing Facility at Kennedy Space Center.
Eileen Collins introduces each crew member and talks to the news media about their role during this mission.
The astronauts are also shown during their spacesuit fit check at the Operations and Control Center (O&C) and footage of a practice flight is presented.
The start of the countdown clock in the firing room 3 of the launch control center is shown. CASI
Air Traffýc Control; Launching Bases; Space Transportation System; Spacecraft Launching; Spacecrews; Payloads
20050207450 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: TCDT Soichi Noguchi Press Briefing
May 04, 2005; In English; 16 min., 28 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V02, Videotape-VHS; B02, Videotape-Beta
Mission Specialist, Soichi Noguchi, of the Japanese Aerospace Exploration Agency (JAXA) is seen during a pre-launch interview. He talks about his first Terminal Countdown Demonstration Test (TCDT) which is a standard training session that precedes every shuttle launch. CASI
Space Transportation System; NASA Space Programs; Countdown; Space Shuttles; Discovery (Orbiter)
20050207451 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114/Discovery Flight Readiness Review Press Briefing
June 30, 2005; In English; 30 min., 57 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
This press briefing on Flight Readiness Review (FRR) for the STS-114 Discovery flight is shown. Dean Acosta, Deputy Associate Administrator for Public Affairs, introduces the panel. The panel consist of: Michael Griffin, NASA Administrator, William Readdy, Associate Administrator of Space Operations, Bill Parsons, Space Shuttle Program Manager, and Mike Leinbach, NASA Launch Director. Questions from the media includes the following topics: certification, countdown, ice on the external tank, debris, and safety of the Space Shuttle Discovery. Author
Discovery (Orbiter); Space Transportation System Flights; Spacecraft Launching; NASA Space Programs
20050207452 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Post MMT Press Conference
July 14, 2005; In English; 40 min., 48 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
This press conference focuses on the outcome of the Mission Management Team (MMT) meeting. The launch and status of the Space Shuttle Discovery is discussed. George Diller from NASA Public Affairs introduces the panel which consists of: Wayne Hale, Space Shuttle Program Deputy Manager and Mike Wetmore, Director of Space Shuttle Processing at Nasa Kennedy Space Center. The news media asks questions about the history of the low level sensors in the hydrogen tank, the cryogenic atmosphere around the sensors, troubleshooting, astronaut activities, possible rollback procedures. CASI
Discovery (Orbiter); Space Transportation System; Mission Planning; NASA Space Programs
20050207471 NASA Marshall Space Flight Center, Huntsville, AL, USA
Space Shuttle
Roberts, Lisa; June 27, 2005; 17 pp.; In English; 2005 National Space and Missile Materials Symposium, 27 Jun. - 1 Jul. 2005, Las vegas, NV, USA; No Copyright; Avail: CASI; A03, Hardcopy
This viewgraph presentation summarizes changes to the Space Shuttle Propulsions Systems made for the Return to Flight in response to the recommendations of the Columbia Accident Investigation Board (CAIB). The presentation also includes an overivew of the Columbia debris recovery effort. CASI
Space Shuttles; Space Shuttle Ascent Stage; Space Shuttle Boosters; External Tanks
20050207499 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Crew Arrival for Launch at Shuttle Landing Facility
July 09, 2005; In English; 22 min., 55 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V02, Videotape-VHS; B02, Videotape-Beta
Live Footage of Discovery’s STS-114 Crew Arriving at the Shuttle Landing Facility at Kennedy Space Center is shown. George Diller is the narrator for this event. Commander, Eileen Collins, is seen introducing the STS-114 crew who consists of: Pilot, James Kelley, Mission Specialist, Charles Camarda, Mission Specialist,Wendy Lawrence, Mission Specialist, Soichi Noguchi, Mission Specialist, Steve Robinson, and Mission Specialist Andy Thomas. Each crewmember addresses the news media about their role on this mission. CASI
Launching Bases; Space Transportation System; Discovery (Orbiter); Spacecrews; NASA Space Programs
20050207573 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Return to Flight Imagery Briefing
July 10, 2005; In English; 54 min., 15 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
George Diller, from NASA Public Affairs, introduces Bob Page who is the chairman of the NASA Intercenter Photo Working Group. Page discusses the purpose of the group which is to perform an analysis of all imagery captured of spacecraft launches. He presents charts to discuss return to flight optics. The charts consist of: 1) Overall Shuttle Imagery Plan; 2) Baseline Configuration Imagery; 3) Upgraded Operational Television (OTV) Cameras; 4) Mobile Launch Platform Cameras; 5) Fixed Service Structure Cameras; 6) Kimeto Tracking Mount (KMT); 7) MOTS (Mobile Optical Tracking System); 8) Intermediate Focal Length Optical Tracker (IFLOT); 9) Distant Object Attitude Measurement System (DOAMS); 10) Advanced Transportable Optical Tracking System (ATOTS); 11) STS-114 Pad Fixed Tracker Camera Configuration; 12) STS-114 Camera Medium and Long Range Tracker Configuration; 13) WB-57 Ascent Visualization Experiment (WAVE); 14) WAVE Profile, Plan View, CAD Flight Training, and Test Flight; 15) Minimum STS-114 Flight Cameras Configuration; 16) External Tank (ET) Separation Cameras; 17) ET Imagery; Umbilical and Handheld; 18) On-Orbit Imagery; and 19) Imagery Data Distribution Plan. The presentation ends with a brief question and answer period. CASI
Discovery (Orbiter); Imagery; Space Transportation System; Spacecraft Launching; NASA Space Programs
20050207574 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery TCDT Flight Crew Test Media Event at Pad 39-B
May 03, 2005; In English; 34 min., 31 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
The STS-114 Space Shuttle Discovery Terminal Countdown Demonstration Test (TCDT) flight crew is shown at Pad 39-B. Eileen Collins, Commander introduces the astronauts. Andrew Thomas, mission specialist talks about his primary responsibility of performing boom inspections,Wendy Lawrence, Mission Specialist 4 (MS4) describes her role as the robotic arm operator supporting Extravehicular Activities (EVA), Stephen Robinson, Mission Specialist 3 (MS3) talks about his role as flight engineer, Charlie Camarda, Mission Specialist 5 (MS5) says that his duties are to perform boom operations, transfer operations from the space shuttle to the International Space Station and spacecraft rendezvous. Soichi Noguchi, Mission Specialist 1 (MS1) from JAXA, introduces himself as Extravehicular Activity 1 (EVA1), and Jim Kelley, Pilot will operate the robotic arm and perform pilot duties. Questions from the news media about the safety of the external tank, going to the International Space Station and returning, EVA training, and thoughts about the Space Shuttle Columbia crew are answered. CASI
Discovery (Orbiter); Flight Crews; International Space Station; News Media; Space Transportation System; NASA Space Programs; Countdown
20050209883 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Q and A with Joint Crew on ISS
August 02, 2005; In English; 36 min., 34 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
Commander Sergei Krikalev and Flight Engineer John Phillips of the Expedition 11 crew, along with the STS-114 Discovery crewmembers are shown on the International Space Station, answering questions from the news media. Eileen Collins, Commander summarizes the untold story of this mission and she also describes what re-entry is like. Steven Robinson, Mission Specialist talks about Extravehicular Activity (EVA) and the gap fillers used to replace missing tiles on the Space Shuttle Discovery. John Phillips describes the equipment coming off the space station and how this equipment will make the International Space Station more efficient. Soichi Noguchi, Mission Specialist answers questions about EVA 1, 2, and 3 and Collins talks about what impressed her most during these EVA’s. CASI
Discovery (Orbiter); International Space Station; NASA Space Programs; Spacecrews; Expeditions
20050209884 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Crew Post Landing Press Briefing
August 09, 2005; In English; 33 min., 55 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
The crew of the STS-114 Discovery is shown during a post landing press briefing. Commander Collins introduces the crew members who consist of Pilot Jim Kelley, Mission Specialist Soichi Noguchi from JAXA, Steve Robinson, Mission Specialist and Charlie Camarda, Mission Specialist. Steve Robinson answers a question from the news media about the repair that he performed in orbit, and his feelings about being back in his hometown of California. Commander Collins talks about the most significant accomplishment of the mission. The briefing ends as each crewmember reflects on the Space Shuttle Columbia tragedy and expresses their personal thoughts and feelings as they re-entered the Earth’s atmosphere. CASI
Spacecraft Landing; Flight Crews; Discovery (Orbiter); Postlaunch Reports
20050209897 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Mission Status/Post MMT Briefing
August 06, 2005; In English; 38 min., 28 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
Paul Hill, STS-114 Lead Shuttle Flight Director, and Wayne Hill, Deputy Manager for the Space Shuttle Program and Chair of the Mission Management Team, discusses with the News media the complete operational success of the STS-114 Flight. Paul Hill mentioned the undocking and flight around did occur right on time that day, and checking out Discovery’s entry system in preparation for de-orbit on Monday morning. He summarized the long list of flight operations and activities demonstrated like various forms of inspections on RCC and tile, gap fillers and blanket, imagery and photography, three space walks and re-supply. Wayne Hill talked about flight control check out, pre-entry plans, opportunity landing in Cape Carneval, Florida and back-up landing operations in Edwards Air Force Base, California. He emphasized the concern for crew and public safety during landing. News media focused their questions on public expectations and feelings about the return of the Shuttle to Earth, analysis of mechanical and technical failures, safety of dark or daylight landings. CASI
Space Shuttle Missions; Spacecraft Landing; International Space Station; Postmission Analysis (Spacecraft); Space Transportation System
20050210010 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Post Launch MMT Briefing
July 27, 2005; In English; 1 hr., 1 min. playing time, in color, with sound; No Copyright; Avail: CASI; V04, Videotape-VHS; B04, Videotape-Beta
Bill Parsons, Space Shuttle Program Manager, andWayne Hill, Deputy Manager of the Space Shuttle Program, and Chair of the Mission Management Team talks about the flight day 2 of the Discovery. Bill noted that flight operations are extremely going on well. He also explained an unexpected debris event on a power ramp little ways down where LH2 ramp begins. Before flight and based from technical data, slight modifications were done on the power ramp to ensure safety of return to flight. Bill also noted that STS-114 is a test flight; all data collected and brought back by the crew will be analyzed to ensure that all information needed is sufficient to work on faults and defects and to make appropriate repairs. Wayne discussed on flight safety. He emphasized the need to thoroughly inspect the thermal protection system of the Orbiter to ensure safe entry. Inspection of still photographs from the ISS and the boom sensor system scan are the primary means to understand engineering data in terms of the immediate flight safety. He also reported accomplishments for the day such as survey of the Orbiter boom system, all the wing leading edge, RCC panels and the nose cap, to make sure these are in good shape and working well, and re-emphasized that these are primary methods to clear the thermal protection system of the Orbiter to prove that it is safe to come home on this flight. CASI
Space Transportation System; Flight Operations; Flight Safety
20050210016 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Mission Status Briefing
August 2005; In English; 47 min., 13 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
Phil Engelauf, STS-114 Mission Operations Representative; Mark Ferring, Lead ISS Flight Director; Cindy Begley, Lead Spacewalk Officer for the Mission were present. Phil reported that the vehicle continues to operate very cleanly, no system anomalies or issues, crew keeping up with the timelines, and small minor and major EVA activities went extremely well. He recapped previous day’s activities such as: nitrogen transfer to the Station, and storing water and transferring it to the Space Station. Mark noted Mission Specialists Steven Robinson and Souichi Noguchi’s superb job doing EVA. Cindy gave a technical detail of the CMG1 remove and replace activities with supporting video clips. News media focused their questions on technical details of flight activities and safety. CASI
Space Shuttle Missions; Space Stations; Extravehicular Activity; Space Transportation System
20050210017 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Impromptu Briefing
July 13, 2005; In English; 28 min., 52 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V02, Videotape-VHS; B02, Videotape-Beta
Dr. Griffin, NASA Administrator, is accompanied by members of The U.S. House of Representatives in this STS-114 Discovery Impromptu briefing. The U.S. House of Representatives present include: Sherwood Boehlert, House Science Committee Chairman, Senator Hutchinson, Sheila Jackson, 18th Congressional District Texas, Al Green, 9th Congressional District, Representative Jim Davis, Florida, and Gene Green, 29th District, Texas. Griffin talks about the problem that occurred with the external fuel tank sensor of the Space Shuttle Discovery and the effort NASA is pursuing to track the problem, and identify the root cause. He answers questions from the news media about the next steps for the Space Shuttle Discovery, time frame for the launch, and activities for the astronauts for the next few days. CASI
Discovery (Orbiter); Space Shuttles; Space Transportation System; NASA Space Programs
20050210021 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Mission Status Briefing Tape 3
July 31, 2005; In English; 25 min. playing time, in color, with sound; No Copyright; Avail: CASI; V02, Videotape-VHS; B02, Videotape-Beta
Paul Hill, STS-114 Lead Shuttle Flight Director is seen during this mission status briefing. He answers questions from the news media about the progress of the analysis of the gap fillers on the Space Shuttle Discovery. He is asked about the EVA’s the astronauts may or may not perform to reach and repair the gap fillers. CASI
Space Transportation System Flights; Discovery (Orbiter); NASA Space Programs
20050210033 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Day 6 Post MMT Meeting
July 31, 2005; In English; 52 min., 31 sec. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
Wayne Hale, Space Shuttle Deputy Program Manager and Steve Poulos, Orbiter Program Manager, discuss the damage assessment from the tiles that came off the Space Shuttle Discovery during launch. Poulos presents charts and discusses in detail the following topics: 1) Composite Tile Damage/Gap Filler Sites Evaluation; 2) Protruding Ceramic Shim Aft of the Nose Landing Gear Door (NLGD); 3) Protruding Chine Gap Filler; 4) RH NLGD Tile Damage; 5) RH NLGD Damage Analysis; 6) Left Wing Tile Damage; 7) Comparison of Ground Test Results vs. FD5 Focused Inspection; 8) Current Status: Focused Inspection 721L07-01 ITVC FD5 Image of Panel 7L Apex 9) Current Status: Focused Inspection Lower Panel 7L721L07-02; 10) Current Status Focused Inspection 721L10-02 Lower Panel 10L Close-up view; and 11)Window 1 Blanket. The presentation ends with a question and answer period from the news media. CASI
Discovery (Orbiter); Space Transportation System; Mission Planning; NASA Space Programs
20050210034 NASA Kennedy Space Center, Cocoa Beach, FL, USA
STS-114: Discovery Post Landing Press Briefing
August 09, 2005; In English; 31 min. playing time, in color, with sound; No Copyright; Avail: CASI; V03, Videotape-VHS; B03, Videotape-Beta
A post landing discussion of the STS-114 Space Shuttle Discovery is shown. Dean Acosta, Deputy Assistant Administrator of Public Affairs introduces the panel. The panel consists of: Michael Griffin, NASA Administrator, Bill Parsons, Space Shuttle Program Manager, Mike Leinbach, NASA Launch Director, and Bill Readdy, Associate Administrator for Space Operations. Mike Griffin answers questions from the news media about the amount of damage to the Space Shuttle and the possibility of returning to space, Mike Leinbach addresses the question about the process of bringing Discovery back to Kennedy Space Center and Bill Parsons talks about milestones reached during this mission. CASI
Discovery (Orbiter); NASA Space Programs; Spacecraft Landing; Space Transportation System
20050210039 NASA Marshall Space Flight Center, Huntsville, AL, USA
Rotary Drum Separator and Pump for the Sabatier Carbon Dioxide Reduction System
Holder, Don; Fort, James; Barone, Michael; Murdoch, Karen; [2005]; 11 pp.; In English; 34rd International Conference on Environmental Systems, 11-14 Jul. 2005, Rome, Italy; No Copyright; Avail: CASI; A03, Hardcopy
A trade study conducted in 2001 selected a rotary disk separator as the best candidate to meet the requirements for an International Space Station (ISS) Carbon Dioxide Reduction Assembly (CRA). The selected technology must provide micro-gravity gasfliquid separation and pump the liquid from 10 psia at the gasfliquid interface to 18 psia at the wastewater bus storage tank. The rotary disk concept, which has pedigree in other systems currently being built for installation on the ISS, failed to achieve the required pumping head within the allotted power. The separator discussed in this paper is a new design that was tested to determine compliance with performance requirements in the CRA. The drum separator and pump @SP) design is similar to the Oxygen Generator Assembly (OGA) Rotary Separator Accumulator (RSA) in that it has a rotating assembly inside a stationary housing driven by a integral internal motor. The innovation of the DSP is the drum shaped rotating assembly that acts as the accumulator and also pumps the liquid at much less power than its predecessors. In the CRA application, the separator will rotate at slow speed while accumulating water. Once full, the separator will increase speed to generate sufficient head to pump the water to the wastewater bus. A proof-of- concept (POC) separator has been designed, fabricated and tested to assess the separation efficiency and pumping head of the design. This proof-of-concept item was flown aboard the KC135 to evaluate the effectiveness of the separator in a microgravity environment. This separator design has exceeded all of the performance requirements. The next step in the separator development is to integrate it into the Sabatier Carbon Dioxide Reduction System. This will be done with the Sabatier Engineering Development Unit at the Johnson Space Center. Author
Rotation; Separators; Carbon Dioxide; International Space Station; Microgravity; Waste Water; Storage Tanks
Source: NASA.
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