Portable dehumidifier control system
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Solution Overview
Problem
Current dehumidification systems are inefficient in reducing humidity levels, particularly in fire and flood restoration applications, where they fail to effectively remove water from damaged structures quickly and efficiently.
Innovation Solution
A portable dehumidifier system with a unique arrangement of internal components, including a multi-piece drain pan and advanced control schemes, which enhances water removal capacity, reduces noise, and optimizes energy consumption by adjusting fan speed based on humidity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current dehumidification systems are used, then they can remove water from damaged structures, but they are inefficient and fail to quickly reduce humidity levels
Solution Approach 1:
The drain pan is divided into a top piece and a bottom piece with multiple functional zones (collection area, drainage opening, strainer holder). This segmentation allows simultaneous water collection, filtration, and drainage operations, increasing overall water removal efficiency and productivity while reducing the time needed to clear condensed water from the system.
2Productivity
If fan speed is increased to improve dehumidification efficiency, then more water is removed from air, but energy consumption increases
Solution Approach 1:
The control system dynamically adjusts fan speed based on real-time humidity level monitoring. When humidity exceeds the setpoint, the fan operates at high speed to maximize water removal. When humidity reaches acceptable levels, the fan speed is reduced or stopped, minimizing energy consumption. This dynamic operation optimizes the balance between dehumidification productivity and energy usage.
3Volume of moving object
If a compact design is used to reduce device size, then portability is improved, but component arrangement becomes more difficult
Solution Approach 1:
The drain pan components are nested within the cabinet structure, with the top piece positioned above the bottom piece. The strainer holder is integrated into the top piece, and the drainage opening connects to the bottom piece's drainage hole. This nested arrangement maximizes space utilization, maintaining a compact device volume while organizing components in a logical, manageable sequence that reduces arrangement complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves more efficient dehumidification, reduces noise, and minimizes energy consumption by using a compact design that retains condensed water effectively and adjusts fan speed according to humidity levels, improving overall performance in dehumidification tasks.
Implementation Method 1
an evaporator, a condenser, an air plenum, a fan, a drain pan, a compressor... configured to collect water condensed from the evaporator
Implementation Method 2
a compressor... The compressor is enabled and the fan is set to a second fan speed
Implementation Method 3
The fan is configured to generate an airflow that flows into the cabinet through the airflow inlet and out of the cabinet through the airflow outlet
Data Source
AI summary
A dehumidifier includes an evaporator, a condenser, a fan, and a processor. In response to determining that a measured relative humidity is greater than or equal to a relative humidity set point, the processor sets the dehumidifier to a first operating mode, wherein a compressor is enabled and the fan is set to a first fan speed while in the first operating mode. The processor further determines whether the dehumidifier has been operating in the first operating mode for a predetermined amount of time, and in response, sets the dehumidifier to a second operating mode if the measured relative humidity is still greater than the relative humidity set point, wherein the compressor is enabled and the fan is set to a second fan speed while in the second operating mode. The second fan speed is greater than the first fan speed.