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Development of a Universal Waste Management System
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Author and Affiliation:
Stapleton, Thomas J.(United Technologies Aerospace Systems, Windsor Locks, CT, United States);
Baccus, Shelley(NASA Johnson Space Center, Houston, TX, United States);
Broyan, James L., Jr.(NASA Johnson Space Center, Houston, TX, United States)
Abstract: NASA is working with a number of commercial companies to develop the next low Earth orbit spacecraft. The hardware volume and weight constraints are similar to or greater than those of the Apollo era. This, coupled with the equally demanding cost challenge of the proposed commercial vehicles, causes much of the Environmental Control and Life Support System (ECLSS) designs to be reconsidered. The Waste Collection System (WCS) is within this group of ECLSS hardware. The development to support this new initiative is discussed within. A WCS concept - intended to be common for all the vehicle platforms currently on the drawing board - is being developed. The new concept, referred to as the Universal Waste Management System (UWMS), includes favorable features from previous designs while improving on other areas on previous Space Shuttle and the existing International Space Station (ISS) WCS hardware, as needed. The intent is to build a commode that requires less crew time, improved cleanliness, and a 75% reduction in volume and weight compared to the previous US ISS/Extended Duration Orbitor WCS developed in the 1990s. The UWMS is most similar to the ISS Development Test Objective (DTO) WCS design. It is understood that the most dramatic cost reduction opportunity occurs at the beginning of the design process. To realize this opportunity, the cost of each similar component between the UWMS and the DTO WCS was determined. The comparison outlined were the design changes that would result with the greatest impact. The changes resulted in simplifying the approach or eliminating components completely. This initial UWMS paper will describe the system layout approach and a few key features of major components. Future papers will describe the UWMS functionality, test results, and components as they are developed.
Publication Date: Jan 01, 2013
Document ID:
20130011635
(Acquired Mar 29, 2013)
Subject Category: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Report/Patent Number: JSC-CN-28426
Document Type: Conference Paper
Publication Information: (SEE 20130000306)
Meeting Information: 2013 International Conference on Environmental Systems (ICES); 14-18 Jul. 2013; Vail, CO; United States
Meeting Sponsor: American Inst. of Aeronautics and Astronautics; Reston, VA, United States
Financial Sponsor: NASA Johnson Space Center; Houston, TX, United States
Organization Source: NASA Johnson Space Center; Houston, TX, United States
Description: 6p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: CLEANLINESS; COST REDUCTION; ENVIRONMENTAL CONTROL; LIFE SUPPORT SYSTEMS; LOW EARTH ORBITS; MANAGEMENT SYSTEMS; SIMPLIFICATION; WASTE MANAGEMENT
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