p&w cleen technology demonstrators...increasing weight of low-rpm lpt contributes to increasing...
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P&W CLEEN TECHNOLOGY DEMONSTRATORS CLEEN I: ULTRA-HIGH BYPASS RATIO CLEEN II: HIGH PERFORMANCE CORE
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CLEEN TECHNOLOGY DEMONSTRATORS
Program Overview
UHB Technology Status
HPT Technology Status
HPC Technology Status
Discussion
2
Topics for Discussion
Photo credit: Embraer
E195-E2 Flight
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Entering A New Era of Engine Architecture CLEEN TECHNOLOGY DEMONSTRATORS
Improved propulsive efficiency enabled by PurePower® Geared Turbofan™ architecture
CLEEN I and II efforts enhance performance of GTF system
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TSFC
1 Whurr (RR)2 Hall (MIT)3 Carlson (GE)
Overall E
fficiency
12 3
Core and Propulsor Technologies under Evaluation CLEEN TECHNOLOGY DEMONSTRATORS
4
Ultra-High Bypass (UHB) Propulsor (Short Inlet, Low Pressure-Ratio Fan)
Enhanced Efficiency Compressor • Advanced aerodynamics • Advanced airfoil/cavity optimization
Enhanced Efficiency HPT • Advanced aerodynamics • Advanced cooling & durability
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Program Schedule CLEEN TECHNOLOGY DEMONSTRATORS
5
2015 2016 2017 2018 2019 2020
HPC Techs. Fabrication/Assembly Rig Test Engine Development Program Fabrication / Assembly Analysis/Redesign
HPT Techs.
Design Base Fab Base Testing Fab Testing
Photo Credit: MTU
Photo Credit: Penn State University
UHB Techs. Fab & Assemb
Rig Test
Eng Test Fabrication / Assembly
Photo Credit: NASA
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CLEEN TECHNOLOGY DEMONSTRATORS
Key technology demonstrators running or completed test HPC rig post test evaluation completed Post test h/w acceptable Engine demo planning initiated. PSU HPT START facility upgrade shakedown completed Baseline turbine test in process Technology hardware casting drawings released UHB engine demonstrator testing complete 150+ hours/250+ cycles of ground testing Aero performance, mechanical, acoustic characteristics confirmed
Program Overview – Summary Status
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CLEEN TECHNOLOGY DEMONSTRATORS
Maturation Strategy
HPC Technology Status
TRL 2
TRL 3
TRL 4
TRL 5
TRL 6
Multi Stage Rig
Full Scale Rig
CFD design/analysis
Demo Engine
Cascade, Unit Rig
Concept Initiation
Photo Credit: MTU
Photo Credit NRC Canada
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CLEEN TECHNOLOGY DEMONSTRATORS HPC Technology – Near Term Milestones Achieved Complete post test hardware assessment
Over 200 parts/assemblies evaluated and documented
Complete data assessment & test report
8 % Flow
% P
ress
ure
Ris
e
Pre-Test ExpectationData
Mini Speedlines
©2017 United Technologies Corporation This document has been publicly released
CLEEN TECHNOLOGY DEMONSTRATORS HPC Technology – Data Assessment & Next Steps
Data assessment completed Improved GTF HPC achieved Extensive instrumentation enables detailed HPC understanding Comprehensive sensitivities study completed Results comparable to CFD predictions Demo engine planning initiated
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Leading Edge Kielhead Data Local/Average
Pressure Local/AverageTemperature
Airfoil Surface Static Pressure
CFD Data
©2017 United Technologies Corporation This document has been publicly released
CLEEN TECHNOLOGY DEMONSTRATORS
Maturation Strategy
HPT Technology Status
TRL 2
TRL 3
TRL 4
TRL 5/6: Aero
TRL 6: Durab.
High-speed cascade Low-speed rig
Un-cooled high-speed rig testing
CFD design/analysis
Demo Engine
Wind tunnel Low-speed cascade
Cooled high-speed rig testing
TRL 5: Durab.
Concept Initiation
Flow
Image Credit: Penn State University
Image Credit: Penn State University
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CLEEN TECHNOLOGY DEMONSTRATORS
Complete PSU START rig hardware fabrication/assembly and initiate facility shakedown
Upgraded hardware delivered & rig assembled Facility shakedown complete, testing started Complete design for technology blade for PSU START rig and
release purchase orders Casting purchase orders placed
Complete UTRC cascade fabrication & conduct baseline airfoil
testing Detailed design complete Baseline test start in July
HPT Technology – Near Term Milestones Status
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CLEEN TECHNOLOGY DEMONSTRATORS
Cascade rig special test equipment design completed
Guidewalls, windows, camera integration
Aero / thermal concept detailed design complete
Baseline blade hardware fabrication initiated
HPT Technology Status – Cascade Testing
Single element cascade airfoil
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CLEEN TECHNOLOGY DEMONSTRATORS
Facility upgrade complete – full span, multi-stage, cooling capable
Increased capability, enhanced instrumentation & controls
HPT Technology Status – High Speed Rig Testing
All Photo and Image Credits: Penn State University
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CLEEN TECHNOLOGY DEMONSTRATORS
Rig assembled and shake down complete
Baseline turbine testing imminent
HPT Technology Status – High Speed Rig Testing
All Photo and Image Credits: Penn State University
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CLEEN TECHNOLOGY DEMONSTRATORS
Complete UTRC cascade fabrication & conduct baseline and technology airfoil testing
Complete PSU START rig baseline turbine test and integrate exit traverse
Complete technology blade castings for PSU START rig
HPT Technology – Near Term Milestones
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Benefits:
• Improved thermal efficiency
‒ ~ 0.8 – 1.0% fuel burn reduction
Prior Accomplishments:
Work Statement: Continue the TRL advancement of compressor aero-efficiency technologies via detailed design, fabrication, full-scale rig tests, and engine validation.
Objectives: Demonstrate improved
high pressure compressor efficiency via
advanced aerodynamic airfoil
optimization
Schedule & Planned Milestones:
Compressor Aero-Efficiency Techs.
Risks/Mitigations • Achievement of performance and operability targets
– Utilize multi-stage rigs for early validation – Execute redesign, if needed, and utilize lower-level rigs for progressive validation before engine demo
• Completed post test h/w assessment • Completed rig results analysis
2015 2016 2017 2018 2019 2020
Engine
Test
Final
Report Rig
Tests Kickoff Redesign Fab &
Assembly
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Benefits:
• Improved thermal efficiency
‒ ~ 0.8 – 1.0% fuel burn reduction
Prior Accomplishments:
Work Statement: Continue the TRL advancement of turbine aero-efficiency and durability technologies via CFD studies, detailed design, fabrication, and full-scale rig tests.
Objectives: Demonstrate improved
high pressure turbine efficiency via
advanced aerodynamic airfoil and
durability optimization
Schedule & Planned Milestones:
Turbine Aero-Efficiency & Durability
Risks/Mitigations • Technology interaction prevents assessment of
contribution of individual items – Execute additional rig trials to isolate • Testing compromised due to assembly delays – Procure additional rig hardware for assembly
• Completed cascade detailed design • Completed rig upgrade design and
fabrication • Initiated baseline rig testing
2015 2016 2017 2018 2019 2020
Full-Scale
Rig Tests
Final
Report CFD Studies
& Design Kickoff Base
Fab
Fab &
Assembly
Base
Testing
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CLEEN TECHNOLOGY DEMONSTRATORS
Leverage propulsor technology & acoustic performance
18
UHB Engine Demo (CLEEN I)
Fuel Burn
Fan Diameter
Noise
Low Bypass RatioHigher Fan Pressure Ratio
High Bypass RatioLower Fan Pressure Ratio
Low
High
Increasing weight of low-RPM LPT
contributes to increasing fuel burn
AdvancedTurbofan
(ATF)Better
GearedTurbofan
Engine(GTF)
Fuel BurnReduction
Noise Reduction
Gear enables higher
performance LPT & fan
This Page Contains No Technical Data
Acoustic Technology
Propulsor Technology
Photo Credit: NASA ©2017 United Technologies Corporation This document has been publicly released
CLEEN TECHNOLOGY DEMONSTRATORS
Generation 2 GTF propulsor technology successfully engine tested Comprehensive aero and acoustic test program…over 2600 test parameters Performance consistent with pretest predictions and scaled fan rig results Design space validated Engine ready for UHB flight demonstration program
19
UHB Engine Demo (CLEEN I)
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UHB Technologies
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CLEEN TECHNOLOGY DEMONSTRATORS
P&W CLEEN programs progressing to plan Technology delivering improved GTF performance HPT technology facility upgrades completed HPC technology rig performance assessment complete
Summary
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THANK YOU
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