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Title: Listening to temperature: Ultrasonic non-destructive identification of material phase and temperature

Abstract

In the chemical transport field, such as petro-chemicals or food processing, there is a need to quantify the spatially varying temperature and phase state of the material within a cylindrical vessel, such as a pipeline, using non-invasive techniques. Using ultrasonic signals, which vary in time-of-flight, intensity, and wave characteristics based on the temperature and phase of a material, an automated technique is presented which can provide a non-axisymmetric map of the phase and temperature inside a cylindrical vessel within a single plane using exclusively information from the through-transmission wave and the external temperature profile. This research demonstrates the approach using an amorphous wax, due to its stable nature and ability to be reheated many times without changing the properties of the wax. Due to its amorphous nature, the wax transitions from a solid to a low-viscosity fluid over a range of temperatures. This behavior is similar to that of a thermoplastic and a slurry experiencing curing. As the spatial temperature within a container of wax increases the time of flight for an ultrasonic signal will change. Finally, results presented indicate the ability of the investigated technique to map the temperature and phase change of the wax based solely on themore » ultrasonic signals and knowledge of the external temperature on the outer edge of the vessel.« less

Authors:
 [1];  [1];  [2]
  1. Baylor Univ., Waco, TX (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1595038
Report Number(s):
SAND-2018-12999J
Journal ID: 0094-243X; 669895
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 2102
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Jeffrey, Taylor, Jack, David, and Moore, David. Listening to temperature: Ultrasonic non-destructive identification of material phase and temperature. United States: N. p., 2019. Web. doi:10.1063/1.5099721.
Jeffrey, Taylor, Jack, David, & Moore, David. Listening to temperature: Ultrasonic non-destructive identification of material phase and temperature. United States. doi:10.1063/1.5099721.
Jeffrey, Taylor, Jack, David, and Moore, David. Wed . "Listening to temperature: Ultrasonic non-destructive identification of material phase and temperature". United States. doi:10.1063/1.5099721.
@article{osti_1595038,
title = {Listening to temperature: Ultrasonic non-destructive identification of material phase and temperature},
author = {Jeffrey, Taylor and Jack, David and Moore, David},
abstractNote = {In the chemical transport field, such as petro-chemicals or food processing, there is a need to quantify the spatially varying temperature and phase state of the material within a cylindrical vessel, such as a pipeline, using non-invasive techniques. Using ultrasonic signals, which vary in time-of-flight, intensity, and wave characteristics based on the temperature and phase of a material, an automated technique is presented which can provide a non-axisymmetric map of the phase and temperature inside a cylindrical vessel within a single plane using exclusively information from the through-transmission wave and the external temperature profile. This research demonstrates the approach using an amorphous wax, due to its stable nature and ability to be reheated many times without changing the properties of the wax. Due to its amorphous nature, the wax transitions from a solid to a low-viscosity fluid over a range of temperatures. This behavior is similar to that of a thermoplastic and a slurry experiencing curing. As the spatial temperature within a container of wax increases the time of flight for an ultrasonic signal will change. Finally, results presented indicate the ability of the investigated technique to map the temperature and phase change of the wax based solely on the ultrasonic signals and knowledge of the external temperature on the outer edge of the vessel.},
doi = {10.1063/1.5099721},
journal = {AIP Conference Proceedings},
number = ,
volume = 2102,
place = {United States},
year = {2019},
month = {5}
}

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