The Monitoring and Management of an Operating Environment to
Humidity is a major factor which can cause safety issues such as fires owing to insulation breakdown caused by condensation. However, the importance of humidity control in
Ideal storage conditions should maintain humidity levels below 60% to prevent corrosion and damage. Batteries exposed to high humidity can develop rust or leaks, which are hazardous. It is also important to store batteries at a partial charge. The recommended charge level for long-term storage is between 30% to 50%.
In this study, temperature and humidity monitoring and management issues were addressed for a container-type ESS by building sensor-based monitoring and control systems. Furthermore, a rule-based air conditioner control algorithm was proposed for temperature and humidity management.
It is recommended that the ESS container used in this study be operated at 35~75% humidity and 18~28 °C. Figure 2 shows an example of the relative humidity, temperature of the container, and battery cell temperature during summer. In this example, the set temperature of the air conditioner inside the ESS container was set to 21 °C.
During the ESS container operation period, the indoor temperature was maintained in the range of 19.3–21.3 °C throughout; however, the indoor humidity was in the range of 50.1–72%. The outdoor temperature and humidity were in the ranges of 26.1–29.9 °C and 56.7–82.8%, respectively. Figure 10.
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