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

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.

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

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

Development of Interferometric Temperature Measurement Procedures for Microfluid Flow

2003 ◽  
Author(s):  
D. Newport ◽  
J. Garvey ◽  
M. Whelan ◽  
T. Dalton ◽  
V. Egan
Keyword(s):  
Heat Transfer ◽  
Temperature Measurement ◽  
Heat Transfer Performance ◽  
Channel Length ◽  
Fluid Temperature ◽  
Full Field ◽  
Transfer Processes ◽  
Current State ◽  
Small Phase ◽  
Phase Evaluation

In order to understand heat transfer processes at the microscale, detailed temperature measurements are required. This paper begins with a review of the current state-of-the art in fluid temperature measurement at the microscale. At present, fluid temperature profiles are not measured, with verification of predicted heat transfer performance being based on global measurements. The paper describes a potential full-field technique based on micro-interferometry. The accuracy of extracting temperature data from small phase difference intensity maps is discussed, with particular reference to the high levels of signal to noise as would be found in a micro-scale flow. Benchmark optical experiments quantifying the effect of noise on phase evaluation are described and the paper concludes with an outline of the achievable resolution for a given channel length and fluid.

Sign in / Sign up

Export Citation Format

Share Document