Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint

Pressure sensitive paint (PSP) was used to measure pressure on the blades of a radial compressor with a 51 mm inlet diameter rotating at speeds up to 50 krpm using the so called lifetime method. A diode laser with a scanning-mirror system was used to illuminate the paint and the luminescent lifetime...

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Main Authors: Markus Pastuhoff, Nils Tillmark, P. Henrik Alfredsson
Format: Article
Language:English
Published: MDPI AG 2016-03-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/16/3/344
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author Markus Pastuhoff
Nils Tillmark
P. Henrik Alfredsson
author_facet Markus Pastuhoff
Nils Tillmark
P. Henrik Alfredsson
author_sort Markus Pastuhoff
collection DOAJ
description Pressure sensitive paint (PSP) was used to measure pressure on the blades of a radial compressor with a 51 mm inlet diameter rotating at speeds up to 50 krpm using the so called lifetime method. A diode laser with a scanning-mirror system was used to illuminate the paint and the luminescent lifetime was registered using a photo multiplier. With the described technique the surface-pressure fields were acquired for eight points in the compressor map, useful for general understanding of the flow field and for CFD validation. The PSP was of so called fast type, which makes it possible to observe pressure variations with frequencies up to several kHz. Through frequency spectrum analysis we were able to detect the pulsating flow frequency when the compressor was driven to surge.
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spelling doaj.art-8f62b2a34f734fd7983b1fb0b2d03e172022-12-22T03:58:43ZengMDPI AGSensors1424-82202016-03-0116334410.3390/s16030344s16030344Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive PaintMarkus Pastuhoff0Nils Tillmark1P. Henrik Alfredsson2Competence Center for Gas Exchange (CCGEx), KTH Mechanics, SE-100 44 Stockholm, SwedenCompetence Center for Gas Exchange (CCGEx), KTH Mechanics, SE-100 44 Stockholm, SwedenCompetence Center for Gas Exchange (CCGEx), KTH Mechanics, SE-100 44 Stockholm, SwedenPressure sensitive paint (PSP) was used to measure pressure on the blades of a radial compressor with a 51 mm inlet diameter rotating at speeds up to 50 krpm using the so called lifetime method. A diode laser with a scanning-mirror system was used to illuminate the paint and the luminescent lifetime was registered using a photo multiplier. With the described technique the surface-pressure fields were acquired for eight points in the compressor map, useful for general understanding of the flow field and for CFD validation. The PSP was of so called fast type, which makes it possible to observe pressure variations with frequencies up to several kHz. Through frequency spectrum analysis we were able to detect the pulsating flow frequency when the compressor was driven to surge.http://www.mdpi.com/1424-8220/16/3/344pressure sensitive paintPSPturbo chargercompressor
spellingShingle Markus Pastuhoff
Nils Tillmark
P. Henrik Alfredsson
Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint
Sensors
pressure sensitive paint
PSP
turbo charger
compressor
title Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint
title_full Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint
title_fullStr Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint
title_full_unstemmed Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint
title_short Measuring Surface Pressure on Rotating Compressor Blades Using Pressure Sensitive Paint
title_sort measuring surface pressure on rotating compressor blades using pressure sensitive paint
topic pressure sensitive paint
PSP
turbo charger
compressor
url http://www.mdpi.com/1424-8220/16/3/344
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