Air, surface and dew point temperature under high humidity conditions during commercial cold storage of apples
Description
Humidity and temperature were recorded in a 50-ton commercial apple cold room. Measurements were taken inside multiple storage bins. Ventilation runtime and temperature setpoint of the cooling system were varied during four tests. The dew point can be calculated from air humidity and temperature, measured close to the fruit. A comparison of dew point and fruit surface temperature indicates whether moisture condensation on the fruit surface is likely. Controlled atmosphere conditions were applied during two tests. The tests were carried out during the winter season of 2024/25 near Ravensburg, Germany.
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Steps to reproduce
Sensor pairs were installed in 10 to 17 apple bins per test. Each pair consisted of Sensirion STS35 and SHT45 sensors for temperature and humidity measurements, respectively. Sensors were calibrated under high humidity conditions to improve accuracy. MATLAB example scripts are provided for dew point calculation and plotting of the data. See [1] for an analysis of dew point undershoots. A detailed description of the data set was submitted to the Data-in-Brief Journal [2]. Please cite if using this data. Further publications on measurements in cold rooms can be found at http://intelligentcontainer.com/en/publications.html [1] R. Jedermann, T.G. Hoffmann, D.A. Neuwald, F. Büchele, P.V. Mahajan, Dew point undershoot mechanisms driving surface condensation in commercial apple cold storage, Postharvest Biology and Technology, 236(2026). https://doi.org/10.1016/j.postharvbio.2026.114264 [2] Jedermann, Reiner; Hoffmann, Tuany Gabriela; Neuwald, Daniel Alexandre; Büchele, Felix; Mahajan, Pramod Vasantrao: Time-series dataset of air temperature, fruit surface temperature and humidity in commercial apple cold storage, SUBMITTED to: Data-in-Brief
Institutions
- University of BremenCity state Bremen, Bremen