NASA Technical Reports Server (NTRS) 19930074437: Space chemical engines technology

16 Pages·0.45 MB·English

by  NASA Technical Reports Server (NTRS)

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N93-71884
INTEGRATED TECHNOLOGY PLAN FOR THE CIVIL SPACE PROGRAM
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SPACE CHEMICAL ENGINES TECHNOLOGY
FRANK D. BERKOPEC
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JUNE 24-28, 1991
L AGENDA
• INTRODUCTION/OVERVIEW/QUAD CHART
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• TERMINOLOGY
• PROGRAM DESCRIPTION
• PROGRAMMATIC REVIEW
• CURRENT PROGRESS
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• OBSERVATIONS
• SUMMARY CHART
TRANSPORTATIO,. ,ECHNOLOGY
SPACE TRANSPORTATION
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I Space Chemical Engines Technology I
OBJECTIVES SCHEDULE
PROGRAMMATIC 1992 - Evaluate (study) modular system concepts IB
Provide the technology necessary to proceed in 1992 - Advanced Expander Test Bed (AETB) DR
the late 1990's with development of moderate- 1996 - AETB Delivered
thrust LOXJLH2 expander cycle engines for 1996 - Complete critical sub-component
technology efforts
I
various space transportation applications. 1998- AETB System characterized
TECHNICAL 1998 - Health Mgt. Sys. & Oper. Eft. Comps.
characterized C=
Reliability: Adequate Margins, Simplicity
Oper. Efficiency: ICHM, Auto Servicing, Min Parts 1998 - AETB alternate components characterized I
Wide Throttling: 20:1 and Stable 1998 - Modular engine system components
characterized
Manufacturing: Low Cost, High Quality,
1999 - Modular engine system characterized
Inspectable m
Performance: Optimum vs.Other Factors 1999 - 200 Klbf expander components m
Materials: Environ. Durable (Space&Oper.) characterized
Maintainability: Auto c/o (Space Maintainable) 2001 - 200 Klbf expander system test charac-
terized
B
RESOURCES ($M} PARTICIPANTS
LEWIS RESEARCH CENTER
CURRENT 3X STRATEGIC
Lead Center - Propulsion Studies, Technology
Acquisition, Component Validation, Advanced g
FY91 4.0 4.0 4.0
Expander Test Bed(AETB)
FY92 9.0 9.0 9.0
FY93 12.6 14.9 15.0 MARSHALL SPACE FLIGHT CENTER
FY94 13.2 16.7 24.0 Participating Center -Propulsion Studies, II
FY95 14.0 19.6 31.0
Technology Acquisition, Component
FY96 14.7 20.2 45.8 Validation, Test Bed
FY97 15.4 28.0 42.4
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APPLICATIONS
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EARTH SPACE ORBIT TRANSFER
SPACE EXPLORATION INITIATIVE
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LUNAR TRANSFER VEHICLE
LUNAR EXCURSIONVEHICLE
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MARS TRANSFER VEHICLE
MARS EXCURSION VEHICLE
UNMANNED PLANETARY AND ROBOTIC MISSIONS
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UPPER STAGES
ATLAS
TITAN
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PRll-2
CRYOGENIC ENGINE OPTIONS
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RL10A-3-3A RL10A-4 Advanced Space
(Baseline) Engine
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Vacuum Thrust, Ibs 16,500 20,800 7,000 to 50,000
Vacuum Isp, sec 444.4 449.0 • 480
-....
Life ('I'BO) - # Starts 20 15 • 100
#Hours 1.25 0.8 >4
Weight, Ibs 305 365 TBD
Length, in. 70.1 90 TBD
Thrust/Weight 54 57 TBD
Combustion Pressure, psla 475 578 • 1200
Expansion Ratio 61:1 84:1 • 600:1
Vac. Thrust Throttling Ratio Not Specified Not Specified 20:1
Mixture Ratio, O/F 5.0 5.5 6.0
Mixture Ratio Range, O/F Not Specified Not Specified 5.0 to 12.0
Basing Ground Ground Space
Man-Rating No No Yes
Hardware Changes from None ModlllKI "l'uml_ Clean Sheet
Strengthened Chamber
RL10A-3-3A andInjector Design
Jmp_rovcd,G_r TraJn
ModllledLOXPump
ImprovedInjector
20"NozzleExtension
&Mechanism
FuelPumpTolerancm
ImprovedSolenoids
Development Status Operational Flight Qualified Technology Dev.
CU51OMEH....._NI.) NbP.U_
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CUSTOMER SEI SEI ETO ETO
90-Day Early High Energy Commercial
NEED Study Lunar Upper Stage Upper Stage
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w High Reliability Enabling Enabling Very Important Very Important
(Includes man-rating)
Operational Efficiency Enabling Beneficial Beneficial Enabling
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Throttling (toTBD level) Enabling Enabling n/a n/a
Low cost
Manufacturing Beneficial Beneficial Beneficial Enabling
High Performance Very Important Beneficial Very Important Beneficial
Storable inSpace Very Important Very Important nla n/a
Environment
Reusable Very Important n/a n/a n/a
Maintainable in Space Very Important n/a n/a n/a
-- PR11-3
SPACE CHEMICAL ENGINES TECHNOLOGY I
INTEGRATED TECHNOLOGY PLAN REVIEW
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EMPHASIS IS ON FUTURE PLANS AND DIRECTION
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SOME HISTORICAL PERSPECTIVE IS NECESSARY
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PROGRAM CONTENT BASED oN A STRATEGIC RESOURCE PROFILE
SATISFIES USERS NEEDS
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COMPARISONS MADE BETWEEN
STRATEGIC AND CURRENT RESOURCE PROFILES
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SPACE CHEMICAL ENGINES TECHNOLOGY
TERMINOLOGY
ASE: ADVANCED SPACE ENGINE m i
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OTV: ORBIT TRANSFER VEHICLE (ENGINE TECHNOLOGY)
BASE R&T (1982-1988) I
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CTP: CHEMICAL TRANSFER PROPULSION
PATHFINDER (1989-1990)
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SBE: SPACE BASED ENGINES i i
EXPLORATION TECHNOLOGIES (1991)
ASE: SPACE EXPLORATION INITIATIVE (1989 ONWARD)
NEWEN_NE ...... I "
20'50 kLBF CLASS, 200 KLBF CLASS
TRANSFER & EXCURSION VEHICLES (LUNAR, MARS) J
SCET: SPACE CHEMICAL ENGINES TECHNOLOGY
PRESENT FOCUSED TECHNOLOGY PROGRAM
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PR11-4 i !
SPACE CHEMICAL ENGINES TECHNOLOGY
PROGRAM DESCRIPTION
CONCEPT
(I CONDUCT A FOCUSED TECHNOLOGY PROGRAM INSPACE ENGINES:
- AS RAPIDLY AS RESOURCES PERMIT
- AS RAPIDLY AS PRIORITIES DICTATE
CONDUCT THE PROGRAM WITH THE WIDEST POSSIBLE PARTICIPATION
INDUSTRY
- ACADEMIA
GOVERNMENT
INVOLVE THE USERS AS SOON AS PRACTICABLE
REQUIREMENTS
TECHNOLOGY TRANSFER
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PROGRAM DESCRIPTION
PURPOSE
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PROVIDE THE TECHNOLOGY NECESSARY TO CONFIDENTLY
PROCEED, IN THE LATE 1990'S WITH THE DEVELOPMENT OF
MODERATE THRUST (7.5 TO.200 KLBF) HIGH-PERFORMANCE,
LIQUID OXYGEN/LIQUID HYDROGEN EXPANDER CYCLE
_ = ENGINES FOR VARIOUS SPACE TRANSPORTATION APPLICATIONS.
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PROGRAM DESCRIPTION
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MAJOR OBJECTIVES
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IDENTIFY, ASSESS TECHNOLOGY REQUIREMENTS UP
IDENTIFY, CREATE, AND/OR VALIDATE:
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- DESIGN & ANALYSIS METHODOLOGIES/SOFTWARE
- MATERIALS WITH REQUIRED/DESIRABLE PROPERTIES
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- RELIABLE, COST-EFFECTIVE MANUFACTURING PROCESSES
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DEVELOP AND VALIDATE ENGINE AND SUPPORT EQUIPMENT SUB-
COMPONENT, COMPONENT, AND SYSTEM TECHNOLOGIES FOCUSED
ON (IN PRIORITY ORDER):
RELIABILITY ._ i
OPERATIONAL EFFICIENCY ql
WIDE-RANGE THROTTLING
LOW-COST MANUFACTURING
EFFICIENT PERFORMANCE ji
_PACE-ENViRONMENT DURABILITY
REUSABILITY/OPERATION-ENVIRONMENT DURABILITY
IN-SPACE MAINTAINABILITY
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PROGRAM DESCRIPTION
APPROACH
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• PROPULSION STUDIES TO DEFINE PROPULSION TECHNOLOGY REQUIREMENTS m
• TECHNOLOGY EFFORTS ADDRESSING THE TECHNOLOGY NEEDS
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• DEVELOPMENT OF ANALYTICAL TOOLS, TECHNOLOGIES, DESIGNS
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• VALIDATION IN AN ENGINE SYSTEM ENVIRONMENT IB
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PROGRAM DESCRIPTION
ISPACE CHEMICAL ENGINES TECHNOLOGY I
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MISSION-
PROPULSION
FOCUSED/ FOCUSED/
STUDIES iiADVANCED ADVANCED SYSTEMS
TEMCIHSNSOIOLNO-GY H COMPONENTS I TECEHNNGOINLEOGY
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EXPANDER
__ ASTDUVDAINECSED SUB-SYSTEM SYSTEM
.__ FLUID/THERMAL ADVANCED VALIDATION
EXPANDER
(MODULAR
CYCLE CONCEPTS,
BASING ENGINE OPSEFF.)
._ SSPTUADCIEE-S I ANDHEALTH
MONITORING
_ INTEG,CONI'ROLS
SUB-SYSTEM
ENGINE
__ ACLOTNEFRIGN'/SOTHEF
SUPPORT
HARDWARE
m 1S&PSAOCFET-WBAASRIENG
ADVANCED EXPANDER TEST ,-.D (AETB) CHARACTERISTICS
• PROPELLANTS: HYDROGEN/OXYGEN
• CYCLE: SPLIT EXPANDER
• THRUST: 25K (DESIGN)
20K (NORMAL OPN)
CHAMBER PRESSURE: 1500 PSI (DESIGN)
vm 1200 PSI (NORMAL OPN)
• THROI-rLING: 125% TO 5% CONTINUOUS
• IDLE MODES: PUMPED (LOW NPSP)
TANKHEAD (NON-ROTATING)
MIXTURE RATIO (O/F): 6.O + 1.0
12.0
• LIFE 100:STARTS/5 HOURS
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-- PR11-7
ADVANCED EXPANDER ,,-ST BED (AETB)
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Secondary Ox_z_
Control iBI
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Chamber
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Main Turbine I
Bypass Valve
ExhaustNozzle
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PROGRAM DESCRIPTION
STRATEGIC PROGRAM
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FY91 I F'Y97 I FYN I FY99 [ FYO0
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Propulsion
Studies
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II
_ission-Focused/
_dv. Technology
NRA Award • Award Jil
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Mission-Focused/
Adv. Components
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jEngine Systems
Technology
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Test Beds CDR DAeElTivBerE(n2g)inCes
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AETB Contract
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High Thrust Mars
Engine Test Bed i
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PF_! l-B
: PROGRAM DEbCRIPTION
SBE
COORD
SBE PROG.
RS M, RZ, USERS'
COORD
REO'I"S
w_ns SBE PROG,
SSTAC RP
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I NASA CENTERS
MSFC
I PARTICIPATION
SBFP.LTAENCNHINNIGCAL I SVPBt5320
ADVISORY GROUP! I
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w TECHNOLOGIES ! ETNEGCHINNEOLSOYGSTIEESM l
& COMPONENTS
PROGRAM DESCRIPTION
RESOURCE PROFILES
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Program FY91 92 93 94 95 96 97
m Strategic 4.0 9.0 15.0 24.0 31.0 45.8 42.4
"3X" 4.0 9.0 14.9 16.7 19.6 20.2 28.0
Current 4.0 9.0 12.6 13.2 14,0 14.7 15.4
PRII-g
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PROGRAM DESCRIPTION
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STRATEGIC PROGRAM
5o
40
m
S'RC)ES
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BUDGET 30 I£-CI-14CX.CX3Y
($M)
. . _ SYSTEMS
2o- TOTAL
CURRF_NTI
PROGRAM
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FISCAL YEAR
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PROGRAM DESCRIPTION
CURRENT PROGRAM
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40' / 4
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BUDGET 30' _HNO_GY i :
($M) iI
ss I _ SYSTEM
2O
/ _ _ TOTAL j[i
•••4 "''" PROGRAM
10
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RSCAL YEAR
PRll-10 H!