Evaluation of Fibre-Optic Temperature Monitoring techniques for Thermal Energy Storage Tank application
Year: 2026
Type: dataset
Abstract: These datasets comprise the results produced for the article Evaluation of Fibre-Optic Temperature Monitoring techniques for Thermal Energy Storage Tank applications during the EURAMET projekt INFOTherm. There are two datasets, one for the case at HYME and one for the case at CIEMAT. The "Hyme.csv" datafile consists of measurements taken 100-second intervals for FBG-sensors installed in a molten salt storage tank at HYME. Measurements were taken between 12-01-2026 to 23-03-2026 at select timeslots. The datafile is a comme seperated file (csv) with each row representing one observation timestamp and includes temperature readings from multible sensors: F8_1wl-F8_5wl, F8_8wl and F8_11wl are seven FBG's multiplexed on one fibre with F8_1wl closest to the tank bottom and F8_11wl a significant distance outside. The F8_5wl contains few recorded values due to sensor degredation. Coloumns Fa_1wl, Fb_1wl og Fc_1wl contain data from three FBG's each inscribed on a seperate fibre, and at the same depth as F8_2wl. In the article the data is displayed in Figure 7. The file "paper_data_CEMCIEMAT.xlsx" combines the data shown in Figures 13 and 14 obtained by our Rayleigh-based DTS system. The measurements were performed between October 2025 and February 2026. The file contains information about the post-calibration values for the temperature profile across four stages and their comparison against thermocouples. Four cases are shown: two for non-operational conditions at temperatures around 120 ºC, and another two under operation.The file is an .xlsx file composed of five worksheets. The first four are named after a representative temperature value and the date when they were acquired. Their structure is as follows: the first column indicates the distance along the fiber, the second column shows the raw data, the third column is the applied correction, and the fourth column represents the corrected temperature. The following two columns contain the raw data obtained by the thermocouples.The last worksheet, named Figure 14, contains the raw data of measurements performed before and after deployment, where the first column is the distance along the fiber and the following columns show the temperature measurements.
Language: English
Topic: Advanced Fiber Optic Sensors
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Award: G307363578
OpenAlex ID: W7204091465