The measurement of unsteady total temperature is of great interest for the examination of loss mechanisms in turbomachinery with respect to the improvement of the efficiency. Since conventional thermocouples are limited in frequency response, several fast-response total temperature probes have been developed over the past years. To improve the spatial resolution compared to these existing probes and maintaining a high temporal resolution, a new fast-response total temperature probe has been developed at the Institute of Aircraft Propulsion Systems (ILA), Stuttgart, Germany in cooperation with Berns Engineers, Gilching, Germany. The design of the probe allows a sensitive measuring surface below 1 mm2. A detailed insight into the design of the probe, the measurement principle, the calibration process, and an estimation of the measurement uncertainty is given in the present paper. Furthermore, to prove the functionality of the probe, first experimental results of a simple test bed and of area traverses downstream of the first rotor of a two-stage low pressure turbine are presented. It is shown, that the new probe is capable of detecting rotor characteristic effects as well as rotor-stator-interactions. In addition, a hot-spot is investigated downstream of the first rotor of the turbine, and the findings are compared to the effects known from the literature.

References

1.
Hodson
,
H. P.
, and
Dawes
,
W. N.
,
1998
, “
On the Interpretation of Measured Profile Losses in Unsteady Wake-Turbine Blade Interaction Studies
,”
ASME J. Turbomach.
,
120
(
2
), pp.
276
284
.
2.
Rose
,
M. G.
,
2011
, “
Unsteady Flow in Axial Turbines
,”
Habilitation thesis
, University of Stuttgart, Stuttgart, Germany.https://www.researchgate.net/publication/275955292_Unsteady_Flow_in_Axial_Turbines_Habil
3.
Ng
,
W. F.
, and
Epstein
,
A. H.
,
1983
, “
High Frequency Temperature and Pressure Probe for Unsteady Compressible Flows
,”
Rev. Sci. Instrum.
,
54
(
12
), pp.
276
284
.
4.
Payne
,
S. J.
,
Ainsworth
,
R. W.
,
Miller
,
R. J.
,
Moss
,
R. W.
, and
Harvey
,
N. W.
,
2003
, “
Unsteady Loss in a High Pressure Turbine Stage
,”
Int. J. Heat Fluid Flow
,
24
(
5
), pp.
698
708
.
5.
Suryavamshi
,
N.
,
Lakshminarayana
,
B.
, and
Prato
,
J.
,
1998
, “
Aspirating Probe Measurements of the Unsteady Total Temperature Field Downstream of an Embedded Stator in a Multistage Axial Flow Compressor
,”
ASME J. Turbomach.
,
120
(
1
), pp.
156
169
.
6.
Buttsworth
,
D. R.
, and
Jones
,
T. V.
,
1998
, “
A Fast-Response Total Temperature Probe for Unsteady Compressible Flows
,”
ASME J. Eng. Gas Turbines Power
,
120
(
4
), pp.
694
702
.
7.
Buttsworth
,
D. R.
, and
Jones
,
T. V.
,
1998
, “
A Fast-Response High Spatial Resolution Total Temperature Probe Using a Pulsed Heating Technique
,”
ASME J. Turbomach.
,
120
(
3
), pp.
601
607
.
8.
Gostelow
,
J. P.
, and
Carscallen
,
W. E.
,
2010
, “
Investigations of Eckert-Weise Energy Separation in the Wakes of Turbine Blades and Circular Cylinders
,”
17th Australasian Fluid Mechanics Conference
, Auckland, New Zealand, Dec. 5–9, pp.
317
320
.https://www.researchgate.net/profile/J_Gostelow/publication/267944774_Investigations_of_Eckert-Weise_Energy_Separation_in_the_Wakes_of_Turbine_Blades_and_Circular_Cylinders/links/54e861700cf25ba91c7d513e.pdf
9.
Hogg
,
S. I.
,
Carscallen
,
W. E.
,
Gostelow
,
J. P.
,
Buttsworth
,
D. R.
, and
Jones
,
T. V.
,
1997
, “
Wide Bandwidth Stagnation Temperature Measurements in Vortical Flows Behind Turbine Vanes
,”
ICIASF'97
Record, International Congress on Instrumentation in Aerospace Simulation Facilities
, Pacific Grove, CA, Sept. 29–Oct. 2, pp.
389
400
.
10.
Iliopoulou
,
V.
, and
Arts
,
T.
,
2005
, “
The Dual Thin-Film Probe for High-Frequency Flow Temperature Measurements
,”
Proc. Inst. Mech. Eng. Part A
,
219
(
6
), pp.
461
469
.
11.
Mansour
,
M.
,
Chokani
,
N.
,
Kalfas
,
A.
, and
Abhari
,
R. S.
,
2008
, “
Time-Resolved Entropy Measurements Using a Fast Response Entropy Probe
,”
Meas. Sci. Technol.
,
19
(
11
), p. 115401.
12.
Iliopoulou
,
V.
,
D′Enos
,
T.
,
Billiard
,
N.
, and
Arts
,
T.
,
2004
, “
Time-Averaged and Time-Resolved Heat Flux Measurements on a Turbine Stator Blade Using Two-Layered Thin-Film Gauges
,”
ASME J. Turbomach.
,
126
(
4
), pp.
570
577
.
13.
Mansour
,
M.
,
Chokani
,
N.
,
Kalfas
,
A.
, and
Abhari
,
R. S.
,
2012
, “
Impact of Time-Resolved Entropy Measurement on a One-and-One-Half-Stage Axial Turbine Performance
,”
ASME J. Turbomach.
,
134
(
2
), pp.
601
607
.
14.
Jenny
,
P.
,
Lenherr
,
C.
,
Abhari
,
R. S.
, and
Kalfas
,
A.
,
2012
, “
Effect of hot Streak Migration on Unsteady Blade Row Interaction in an Axial Turbine
,”
ASME J. Turbomach.
,
134
(
5
), pp.
601
607
.
15.
Weigel
,
B.
,
2014
, “
Entwicklung eines Sensors zur deterministischen Bestimmung der Totaltemperatur mit hoher räumlicher und zeitlicher Auflösung in durchströmten Systemen
,” Ph.D. thesis, Institute of Aircraft Propulsion Systems, University of Stuttgart, Stuttgart, Germany.
16.
Rose
,
M. G.
,
Weigel
,
B.
,
Eichler
,
C.
, and
Staudacher
,
S.
,
2010
, “
Fast Response Temperature Measurement Within a Gas Turbine
,” U.S. Patent No. PCT/EP2009/004,198.
17.
Nakamura
,
H.
, and
Igarashi
,
T.
,
2004
, “
Unsteady Heat Transfer From a Circular Cylinder for Reynolds Numbers From 3000 to 15000
,”
Int. J. Heat Fluid Flow
,
25
(
5
), pp.
741
748
.
18.
Bose
,
S. T.
,
Wang
,
B. C.
, and
Saeedi
,
M.
,
2012
, “
Prediction of Unsteady Heat Transfer From a Cylinder in Crossflow
,”
Studying Turbulence Using Numerical Simulation Databases—XIV, Summer Program 2012
, Stanford, CA, June–July, pp.
107
116
.http://web.stanford.edu/group/ctr/Summer/SP12/02.04_bose.pdf
19.
Doorly
,
J. E.
, and
Oldfield
,
M. L. G.
,
1987
, “
The Theory of Advanced Multi-Layer Thin Film Heat Transfer Gauges
,”
Int. J. Heat Mass Transfer
,
30
(
6
), pp.
1159
1168
.
20.
Oldfield
,
M. L. G.
,
2008
, “
Impulse Response Processing of Transient Heat Transfer Gauge Signals
,”
ASME J. Turbomach.
,
130
(
2
), p. 021023.
21.
Cook
,
W. J.
, and
Felderman
,
E. J.
,
1966
, “
Reduction of Data From Thin-Film Heat-Transfer Gages: A Concise Numerical Technique
,”
AIAA J.
,
4
(
3
), pp. 561–562.
22.
George
,
W. K.
,
Rae
,
W. J.
, and
Woodward
,
S. H.
,
1991
, “
An Evaluation of Analog and Numerical Techniques for Unsteady Heat Transfer Measurements With Thin-Filmgauges in Transient Facilities
,”
Exp. Therm. Fluid Sci.
,
4
(
3
), pp.
333
342
.
23.
Piccini
,
E.
,
Guo
,
S. M.
, and
Jones
,
T. V.
,
2000
, “
The Development of a New Direct-Heat-Flux Gauge for Heat-Transfer Facilities
,”
Meas. Sci. Technol
,
11
(
4
), pp.
342
349
.
24.
Billiard
,
N.
,
Iliopoulou
,
V.
,
Ferrara
,
F.
, and
Dénos
,
T.
,
2002
, “
Data Reduction and Thermal Product Determination for Single and Multi-Layered Substrates Thin-Film Gauges
,”
16th Symposium on Measuring Techniques in Transonic and Supersonic Flow in Cascades and Turbomachines
, Sept., Cambridge, UK, Paper No. 6-2.http://www-g.eng.cam.ac.uk/whittle/rigs/symposium/papers/6-2.pdf
25.
JCGM/WG 1
,
2008
, “
Evaluation of Measurement Data Guide to the Expression of Uncertainty in Measurement
,” Working Group 1 of the Joint Committee for Guides in Metrology, JGM, Standard No. JCGM 100:2008.
26.
Gostelow
,
J. P.
,
1977
, “
A New Approach to the Experimental Study of Turbomachinery Flow Phenomena
,”
ASME J. Eng. Power
,
99
(
1
), pp.
97
105
.
27.
Schinko
,
N.
,
Kürner
,
M.
,
Staudacher
,
S.
,
Rose
,
M.
,
Gier
,
J.
,
Raab
,
I.
, and
Lippl
,
F.
,
2009
, “
Das ATRD-Projekt—Ein Beispiel f¨ur die Zusammenarbeit von Industrie und Universität zur Förderung der Grundlagenforschung
,” DGLRCongress 2009, Aachen, Germany, Paper No. DGLR-2009-121156.
28.
Kürner
,
M.
,
Schneider
,
C.
,
Rose
,
M. G.
,
Staudacher
,
S.
, and
Gier
,
J.
,
2010
, “
LP Turbine Reynolds Lapse Phenomena: Time Averaged Area Traverse and Multistage CFD
,”
ASME
Paper No. GT2010-23114.
29.
Schneider
,
C.
,
Schrack
,
D.
,
Kürner
,
M.
,
Rose
,
M. G.
,
Staudacher
,
S.
,
Gündogdu
,
Y.
, and
Freygang
,
U.
,
2013
, “
On the Unsteady Formation of Secondary Flow Inside a Rotating Turbine Blade Passage
,”
ASME
Paper No. GT2013-94091.
30.
Shang
,
T.
, and
Epstein
,
A. H.
,
1998
, “
Analysis of Hot Streak Effects on Turbine Rotor Heat Load
,”
ASME J. Turbomach.
,
119
(
3
), pp.
544
553
.
31.
Kerrebrock
,
J. L.
, and
Mikolajczak
,
A. A.
,
1970
, “
Intra-Stator Transport of Rotor Wakes and Its Effect on Compressor Performance
,”
ASME J. Eng. Power
,
92
(
4
), pp.
359
368
.
32.
Butler
,
T. L.
,
Sharma
,
O. P.
,
Joslyn
,
H. D.
, and
Dring
,
R. P.
,
1989
, “
Redistribution of an Inlet Temperature Distortion in an Axial Flow Turbine Stage
,”
J. Propul. Power
,
5
(
1
), pp.
64
71
.
You do not currently have access to this content.