Par-delà la précision statique : à la recherche du capteur de température idéal pour les environnements dynamiques d’échangeurs de chaleur à revêtement déshydratant.

Temperature and humidity measurements in desiccant-coated heat exchangers (DCHEs) face unique challenges due to rapid transitions between operating modes and varying thermal conditions. The dynamic nature of DCHE operation requires a more comprehensive evaluation of sensor performance. This study evaluates three temperature sensors (K-type thermocouple, PT100, and DS18B20) within a temperature range of 23 °C to 60 °C. Our methodology combined calibration accuracy analysis, dynamic response evaluation through time constant measurements, and uncertainty quantification in actual DCHE operating conditions. Results revealed that while the PT100 sensor showed superior static accuracy, the DS18B20 demonstrated better performance in dynamic conditions, exhibiting the shortest time constant (70–80 s) and lowest uncertainty in humidity measurements (±1 % in dehumidification mode). Our analysis establishes guidelines for handling sensor readings during mode transitions and determines optimal calibration requirements for each sensor type. These findings provide crucial insights for more reliable temperature and humidity measurements in dynamic thermal environments. The results establish new criteria for sensor selection in DCHE applications.