국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Propulsion Risk Reduction Activities for Nontoxic Cryogenic Propulsion
저자	Smith, Timothy D.;; Klem, Mark D.;; Fisher, Kenneth L.
Keyword	CRYOGENIC ROCKET PROPELLANTS;; LIQUEFIED GASES;; LIQUID OXYGEN;; METHANE;; OXYGEN-HYDROCARBON ROCKET ENGINES;; PROJECT MANAGEMENT;; PROPULSION SYSTEM CONFIGURATIONS;; SPACE MISSIONS;; THROTTLING
URL	http://hdl.handle.net/2060/20100039320
보고서번호	NASA/TM-2010-216820
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	The Propulsion and Cryogenics Advanced Development (PCAD) Project''s primary objective is to develop propulsion system technologies for nontoxic or "green" propellants. The PCAD project focuses on the development of nontoxic propulsion technologies needed to provide necessary data and relevant experience to support informed decisions on implementation of nontoxic propellants for space missions. Implementation of nontoxic propellants in high performance propulsion systems offers NASA an opportunity to consider other options than current hypergolic propellants. The PCAD Project is emphasizing technology efforts in reaction control system (RCS) thruster designs, ascent main engines (AME), and descent main engines (DME). PCAD has a series of tasks and contracts to conduct risk reduction and/or retirement activities to demonstrate that nontoxic cryogenic propellants can be a feasible option for space missions. Work has focused on 1) reducing the risk of liquid oxygen/liquid methane ignition, demonstrating the key enabling technologies, and validating performance levels for reaction control engines for use on descent and ascent stages;; 2) demonstrating the key enabling technologies and validating performance levels for liquid oxygen/liquid methane ascent engines;; and 3) demonstrating the key enabling technologies and validating performance levels for deep throttling liquid oxygen/liquid hydrogen descent engines. The progress of these risk reduction and/or retirement activities will be presented.