Type

Journal Article

Authors

Yuliya Semenova
Qiang wu
Gerald Farrell
Dejun Liu
Xiaokang Lian
Marek Rebow
Wei Han

Subjects

Physics

Topics
n octadecane supercooling phase change materials pcms optical fiber sensor optics refractive index other engineering phase transition

SNS OPTICAL FIBER STRUCTURE SENSOR FOR DIRECT DETECTION OF THE PHASE TRANSITION IN C18H38 N-ALKANE MATERIAL (2019)

Abstract A singlemode-no-core-singlemode (SNS) fiber structure optical sensor for detecting the solid-liquid phase change in a phase change material: C18H38 n-alkane material (n-octadecane) is proposed and demonstrated. The transmission-type sensor probe consists of a short section of no-core fiber sandwiched between two sections of a singlemode fiber. Phase changes in n-octadecane are accompanied by large step-like variations of its refractive index (RI). Such a large discontinuous change of the n-octadecane’s RI during its phase transition, leads to the corresponding step-like change in the transmitted optical power that can reliably indicate the phase change of the sample in the vicinity of the sensor. In addition, the proposed sensor can detect whether the sample is in solid or liquid phase based on a single power measurement, can detect supercooling, and is resistant to bending and strain disturbances during the measurements. The results of this work also illustrate that the proposed sensor can be applied to detect liquid-solid phase changes in other materials with thermo-optic properties similar to n-octadecane.
Collections Ireland -> TU Dublin -> Colleges
Ireland -> TU Dublin -> College of Engineering and Built Environment
Ireland -> TU Dublin -> Articles
Ireland -> TU Dublin -> School of Electrical and Electronic Engineering

Full list of authors on original publication

Yuliya Semenova, Qiang wu, Gerald Farrell, Dejun Liu, Xiaokang Lian, Marek Rebow, Wei Han

Experts in our system

1
Yuliya Semenova
TU Dublin
Total Publications: 136
 
2
Qiang wu
TU Dublin
Total Publications: 90
 
3
Gerald Farrell
TU Dublin
Total Publications: 212
 
4
Dejun Liu
TU Dublin
Total Publications: 24
 
5
Marek Rebow
TU Dublin
Total Publications: 9
 
6
Wei Han
TU Dublin
Total Publications: 9