We plan to have sensors placed at different points in the dehumidifier as seen below in Figure 1. Each sensor will measure relative humidity and temperature. To achieve this a python code was created to simulate the expected values for each of the individual sensors over the time of running by tracking the water stored by the desiccant.
Figure 1: Sensor (A,B,C,D,E) Placement
The simulation will provide values for temperature and humidity of any sensor over time. The code also tracks water stored by the desiccant.
Figure 2: Results of Dehumidifier Simulation Showing Change in Humidity and Water Absorbed Over Time
The system will have a float sensor as well to determine when the drainage tank reaches the maximum amount of water. The sensor will rely on the buoyancy of an enclosed ball as water levels rise and lower. From there a touch sensor will be activated once the tank reaches maximum capacity sending a signal to the drain pump.
Figure 3: Float Sensor