Fluid temperature measurement in an open cavity using a holographic interferometer

1995 ◽  
Author(s):  
Kyong S. Im ◽  
Hoi-San Kim ◽  
Sung K. Park ◽  
Ki J. Kim
Keyword(s):  
Temperature Measurement ◽  
Open Cavity ◽  
Fluid Temperature ◽  
Holographic Interferometer

scholarly journals Estimating uncertainty of temperature measurements for studies of flow boiling heat transfer in minichannels

2019 ◽  
Vol 213 ◽  
pp. 02059
Author(s):  
Dariusz Michalski ◽  
Kinga Strąk ◽  
Magdalena Piasecka
Keyword(s):  
Heat Transfer ◽  
Temperature Measurement ◽  
Boiling Heat Transfer ◽  
Experimental Error ◽  
Flow Boiling ◽  
Mean Value ◽  
Temperature Measurements ◽  
Fluid Temperature ◽  
Flow Boiling Heat Transfer ◽  
Characteristic Points

This paper presents the method of estimating the uncertainty of temperature measurements conducted using K-type thermocouples in the study of flow boiling heat transfer in minichannels. During heat transfer experiments. the fluid temperature at the inlet and outlet of the minichannel is measured with thermocouples connected to a DaqLab 2005 data acquisition station. The major part of the experimental setup for calibration of temperature measurement included a calibrator of thermocouples. The thermocouples were manufactured by Czaki Thermo-Product. Poland. The temperatures recorded with the thermocouples were compared statistically while measuring the temperature of demineralised water at several characteristic points at liquid phase change or using the reference temperature known from the calibrator. The experimental error of the temperature measurement method was determined according to the principles of statistical analysis. Estimates of the mean value and the experimental standard deviation of the experimental error as well as the confidence interval for a single experimental error and the measurement accuracy were presented. The uncertainty of the difference in temperature was also calculated

Prediction of Fluid Temperatures From Measurements of Outside Wall Temperatures in Pipes

1994 ◽  
Vol 116 (2) ◽  
pp. 179-187 ◽  
Author(s):  
M. Guyette
Keyword(s):  
Temperature Measurement ◽  
Wall Temperature ◽  
Industrial Application ◽  
Thermal Stratification ◽  
Transfer Functions ◽  
Fluid Temperature ◽  
Convolution Integral ◽  
Thermal Transients ◽  
Points Of Interest ◽  
Piping Systems

The monitoring of the fatigue induced by thermal transients in thick-walled structures becomes more and more currently performed, mainly on equipment the failure of which could present severe implications on the environment. The easiest way of performing this monitoring is by use of Green’s functions in a convolution integral of the measured fluid temperatures to assess the stresses at the points of interest. Numerous cases, however, exist where the fluid temperatures are not available and only an outside wall temperature measurement is feasible. This paper describes the development and the industrial application of the so-called “inverse” transfer functions to predict the evolution of the fluid temperature from measurements of the metal temperature either at the outside or in the wall of the considered equipment. Some applications are shown for the particular case of the thermal stratification in piping systems.

scholarly journals Fluid Temperature Measurement by using Ultrasound and Computer Tomography

2005 ◽  
Vol 25 (Supplement1) ◽  
pp. 379-382
Author(s):  
Hideki KOBAYASHI ◽  
Takuya TSUMAKI ◽  
Kenichi P. KOBAYASHI
Keyword(s):  
Temperature Measurement ◽  
Computer Tomography ◽  
Fluid Temperature

Optical Tweezers-Assisted Cross-Correlation Analysis for a Non-intrusive Fluid Temperature Measurement in Microdomains

2012 ◽  
Vol 51 ◽  
pp. 067002
Author(s):  
Chih-Ming Cheng ◽  
Ming-Chih Chang ◽  
Yu-Fen Chang ◽  
Wei-Ting Wang ◽  
Chien-Ting Hsu ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Temperature Measurement ◽  
Optical Tweezers ◽  
Cross Correlation ◽  
Fluid Temperature ◽  
Cross Correlation Analysis

scholarly journals Fluid Temperature Measurement in Aqueous Solution via Electrochemical Impedance

2019 ◽  
Vol 28 (6) ◽  
pp. 1060-1067
Author(s):  
Alex Baldwin ◽  
Eugene Yoon ◽  
Trevor Hudson ◽  
Ellis Meng
Keyword(s):  
Aqueous Solution ◽  
Temperature Measurement ◽  
Electrochemical Impedance ◽  
Fluid Temperature

scholarly journals Analysis of Combined Convection in an Open Cavity under Constant Heat Flux Boundary Conditions and Magnetic Field Using Finite Element Method

2014 ◽  
Vol 6 (2) ◽  
pp. 243-256 ◽  
Author(s):  
A. Kalam ◽  
J. H. Munshi ◽  
M. Rahman ◽  
M. M. K. Chowdhury
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Aspect Ratio ◽  
Boundary Conditions ◽  
Length Change ◽  
Constant Heat Flux ◽  
Open Cavity ◽  
Maximum Temperature ◽  
Fluid Temperature ◽  
Rayleigh Numbers

This study investigated the effects of the aspect ratio of the cavity for average fluid temperature at exit port, average Nusselt number, maximum temperature of the fluid in the domain, drag coefficient, isotherms and streamlines on behalf of different Hartmann numbers and Rayleigh numbers. Solution of governing equations of momentum and energy has been made by finite element technique. Above mentioned parameters such as an aspect ratio which is cavity height to cavity length change from Ar = 0.5 to 2 for different Rayleigh numbers and Hartmann numbers which change from Ra = 103 to 105 and Ha = 0 to 50 respectively. Prandtl number Pr = 7 and Reynolds number Re = 100 is fixed in this simulation. It is found that variation of the aspect ratio makes an important effect for higher values of Rayleigh numbers. Heat transfer enhances with increasing of aspect ratio. Increasing of Hartmann number decreases the heat transfer inside the cavity.  Keywords: Temperature boundary conditions; Open cavity; Aspect ratio; Finite element methods.  © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.  doi: http://dx.doi.org/10.3329/jsr.v6i2.14505 J. Sci. Res. 6 (2), 243-256 (2014)

Optical Tweezers-Assisted Cross-Correlation Analysis for a Non-intrusive Fluid Temperature Measurement in Microdomains

2012 ◽  
Vol 51 (6R) ◽  
pp. 067002 ◽  
Author(s):  
Chih-Ming Cheng ◽  
Ming-Chih Chang ◽  
Yu-Fen Chang ◽  
Wei-Ting Wang ◽  
Chien-Ting Hsu ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Temperature Measurement ◽  
Optical Tweezers ◽  
Cross Correlation ◽  
Fluid Temperature ◽  
Cross Correlation Analysis
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