Instrumentation Lab Gap Matrix: Unterschied zwischen den Versionen

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Version vom 28. November 2019, 16:14 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 300°C -40 to 300°C 300 to 700°C+ 700°C-2400°C 1000°C-1800°C 700°C-1000°C 700°C+
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) datasheet
Offtake flow: orrifice plates/nozzles
Intake condensation/water content
Sand/ash/particulate
Multiphase breather flows
other
2. Gas Path Measurements
2a. Gas Path: Dynamic Pressure Measurements
Piezoelectric
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

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