163746 20251030150827.0 doi 10.52825/solarpaces.v3i.2415 sideral 145735 ART-2024-145735 eng Izquierdo, David Universidad de Zaragoza (orcid)0000-0002-4746-3139 Opto-Electronic Sensor for HTF Early Leak Detection Based on Infrared Absorption 2024 We propose an early leak detection sensor for HTF (Heat Transfer Fluid) leakages by measuring the absorption of infrared radiation by the HTF components. This sensor, that can be installed inside the insulation around ball joints or other elements in a Concentrated Solar Power (CSP) plant, detects leaks by sensing mid-infrared absorption at specific wavelengths. The sensor includes a reference signal to correct for external factors like temperature changes and sensor degradation. Laboratory tests have validated the sensor performance under various conditions. The sensor enhances the sustainability of solar thermal plants by providing early leak detection and is easily adjustable for different HTFs by changing the IR (Infrared) radiation sensing bands. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MICINN/CPP2021-009047 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Heras, Maria Pelayo, Cristina Universidad de Zaragoza (orcid)0000-0003-0410-9735 Peña, Adrián Sánchez, Marcelino 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 3 (2024), [7 pp.] SolarPACES Conference Proceedings 2751-9899 982589 http://zaguan.unizar.es/record/163746/files/texto_completo.pdf Versión publicada 2400945 http://zaguan.unizar.es/record/163746/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:163746 articulos driver 2025-10-30-14:40:09 ARTICLE