Errors Associated With Light-Pipe Radiation Thermometer Temperature Measurements

2007 ◽  
Vol 20 (1) ◽  
pp. 26-38 ◽  
Author(s):  
Yan Qu ◽  
E. Puttitwong ◽  
J.R. Howell ◽  
O.A. Ezekoye
Keyword(s):  
Radiation Thermometer ◽  
Temperature Measurements ◽  
Light Pipe

scholarly journals Identification of wavelength regions for non-contact temperature measurement of combustion gases at high temperatures and high pressures

2020 ◽  
Vol 49 (3) ◽  
pp. 241-260
Author(s):  
MATTHIAS ZIPF ◽  
JOCHEN MANARA ◽  
THOMAS STARK ◽  
MARIACARLA ARDUINI ◽  
HANS-PETER EBERT ◽  
...  
Keyword(s):  
Gas Turbine ◽  
High Temperatures ◽  
Gas Turbines ◽  
High Pressures ◽  
Wavelength Region ◽  
Gas Mixtures ◽  
Radiation Thermometer ◽  
Temperature Measurements ◽  
Gas Temperature ◽  
Gas Cell

Stationary gas turbines are still an important part of today’s power supply. With increasing temperature of the hot combustion gas inside a gas turbine, the efficiency factor of the turbine increases. For this reason, it is intended to operate turbines at the highest possible gas temperature. Therefore, in the combustion chamber and especially at the position of the first stage guide vanes the gas temperature needs to be measured reliably. To determine the gas temperature, one promising approach is the application of a non-contact measurement method using a radiation thermometer. A radiation thermometer can measure the gas temperature remotely from outside of the harsh environment. At ZAE Bayern, a high temperature and high-pressure gas cell has been developed for this purpose in order to investigate gases and gas mixtures under defined conditions at high pressures and high temperatures. This gas cell can be placed in a FTIR-spectrometer in order to characterize the infrared-optical properties of the gases. In this work the measurement setup is introduced and gas mixtures, which are relevant for gas turbine applications are analyzed thoroughly. The derived results are presented and discussed in detail. To identify suitable wavelength regions for non-contact gas temperature measurements, first tests have been performed. Based on these tests, an appropriate wavelength region could be chosen, where future gas temperature measurements can be carried out.

An Experimental Study of Heat Induced Surface-Tension Driven Flow

1981 ◽  
Vol 9 ◽  
Author(s):  
Y. Kamotani ◽  
S. Ostrach ◽  
S. Lowry
Keyword(s):  
Surface Tension ◽  
Numerical Solutions ◽  
Silicone Oil ◽  
Time Lapse ◽  
Radiation Thermometer ◽  
Temperature Measurements ◽  
Surface Velocity ◽  
Bulk Temperature ◽  
Nichrome Wire ◽  
Anemometer System

ABSTRACTVelocity and temperature measurements are taken of heat induced surface-tension driven flows in both silicone oil and Fluorinert FC-43. Each fluid is contained in an open rectangular box and heated from above by a single strand of electrically heated nichrome wire suspended slightly above the fluid's surface. Velocity measurements are obtained for both liquids with a laser anemometer system. For silicone oil the general flow pattern is recorded using time-lapse photography. The surface temperature measurements are taken by a radiation thermometer and the bulk temperature distributions are measured by thermocouples. The velocity and temperature measurements are compared with numerical solutions obtained for the present configuration.

CARS TEMPERATURE MEASUREMENTS IN A PLASMA HEATED COAL COMBUSTOR

1987 ◽  
Vol 48 (C7) ◽  
pp. C7-757-C7-760
Author(s):  
P. SPIBERG ◽  
C. CAHEN ◽  
P. DESCHAMPS
Keyword(s):  
Temperature Measurements
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