Instrumentation Lab Gap Matrix: Unterschied zwischen den Versionen

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! style="width: 10%" | LP Turbine
 
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! scope="row" | Pressure (MKS)
 
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! scope="row" colspan="8" class="wikitable"| TRL assessments =  Red 1-4, Yellow 5-6, Green 7-9
 
! scope="row" colspan="8" class="wikitable"| TRL assessments =  Red 1-4, Yellow 5-6, Green 7-9
 
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Traversible steady pressure
 
Traversible steady pressure
 
other
 
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== Rotating Structures ==
 
== Rotating Structures ==

Version vom 28. November 2019, 14:17 Uhr

Description

In order to highlight the research priorities in terms of Gas Turbine Instrumentation Development, PIWG on the US side and EVI-GTI on the EU side have issued a Lab Gap Matrix. A first EVI-GTI version was released in 2004, then updated in 2009, containing measured quantities on one axis mapped against engine location / working environment on the other axis.

Measurement types were structured as follows and after a voting process among OEM’s, each area was highlighted in green, yellow or red depending on their level of maturity or even availability.

Structure

Aerodynamics and Performance

issued 22 February 2017

Measurand/Measurement Externals
and shafts
Intake, Compressor (Front) and Fan Compressor (rear) Combustion system HP Turbine LP Turbine Exhaust
Pressure (MKS) 1 bar 1-10 bar 10-45 bar <45 bar 25-45 bar 1-20 bar 1 bar
Pressure (Eng) 15psi 15-150psi 150psi-650psi 650psi 370psi-650psi 15psi-300psi 15psi
Temperature (MKS) -40 to 300C -40 to 300C 300 to 700C+ 700C-2400C 1000C-1800C 700C-1000C 700C+
Temperature (Eng) -40 to 570F -40 to 570F 570 to 1300F+ 1300F-4300F 1800F-3300F 1300F-1800F 1300F
TRL assessments = Red 1-4, Yellow 5-6, Green 7-9
1. Airflow Measurements
Intake/core mass flow (Total/static P)
Offtake flow: orrifice plates/nozzles
Intake condensation/water content
Sand/ash/particulate
Multiphase breather flows
other
2a. Gas Path: Dynamic Pressure Measurements Piezoelectric
2. Gas Path Measurements
Piezoresistive
Capacitance
Semi infinite line - remote
Plasma discharge
MEMS
Fiber optic (FPI, FBG)

Traversible dynamic pressure other 2b. Gas Path: Temperature Measurements Rakes, Including noble metals Metallic Thermocouples Ceramic thermocouple alloys Fiber optic (FPI/FBG/BBR) Absorption technologies Laser based technologies - planar 2 D Mapping Tomography Seeded flowpath technologies Acoustic pyrometry Intermittant choked nozzle Traversing other 2c. Gas Path: Pressure Measurements Rakes, Including noble metals Traversible steady pressure other

Rotating Structures

Stationary Structures

External links