Beyond static accuracy: Exploring the ideal temperature sensor for dynamic DCHE environments

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2025-03-04 DOI:10.1016/j.ijrefrig.2025.03.006

Chanida Topakham, Atit Koonsrisuk

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引用次数: 0

Abstract

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.

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.