Thermal Expansion Measurements in Fresh and Saline Ice Using Fiber Optic Strain Gauges and Multipoint Temperature Sensors Based on Bragg Gratings
Joint Authors
Lishman, Ben
Wrangborg, David
Thiel, Torsten
Marchenko, A. V.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-17
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
This paper describes the use of Fiber Bragg Grating (FBG) sensors to investigate the thermomechanical properties of saline ice.
FBG sensors allowed laboratory measurements of thermal expansion of ice samples with a range of different sizes and geometries.
The high sampling frequency, accuracy, and resolution of the FBG sensors provide good quality data across a temperature range from 0°C to −20°C.
Negative values of the effective coefficient of thermal expansion were observed in ice samples with salinities 6 ppt, 8 ppt, and 9.4 ppt.
A model is formulated under which structural transformations in the ice, caused by temperature changes, can lead to brine transfer from closed pockets to permeable channels, and vice versa.
This model is compared to experimental data.
Further, in experiments with confined floating ice, heating as well as thermal expansion due to vertical migration of liquid brine, caused by under-ice water pressure, was observed.
American Psychological Association (APA)
Marchenko, A. V.& Lishman, Ben& Wrangborg, David& Thiel, Torsten. 2016. Thermal Expansion Measurements in Fresh and Saline Ice Using Fiber Optic Strain Gauges and Multipoint Temperature Sensors Based on Bragg Gratings. Journal of Sensors،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1110518
Modern Language Association (MLA)
Marchenko, A. V.…[et al.]. Thermal Expansion Measurements in Fresh and Saline Ice Using Fiber Optic Strain Gauges and Multipoint Temperature Sensors Based on Bragg Gratings. Journal of Sensors No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1110518
American Medical Association (AMA)
Marchenko, A. V.& Lishman, Ben& Wrangborg, David& Thiel, Torsten. Thermal Expansion Measurements in Fresh and Saline Ice Using Fiber Optic Strain Gauges and Multipoint Temperature Sensors Based on Bragg Gratings. Journal of Sensors. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1110518
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110518