Dehumidifier Heat Exchanger Layout for Faster Structural Drying
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Solution Overview
Problem
Current drying systems for water-damaged structures are not energy efficient and do not optimize drying rates effectively, necessitating an improvement in dehumidification technology for rapid moisture removal.
Innovation Solution
A dehumidification system comprising a refrigerant system with a condenser and evaporator section, and a heat transfer system with a cooling coil and heating coil, where air flows through both coils to enhance moisture extraction, with a pump controlling the circulation of heat transfer fluid for optimized efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional dehumidification systems are used, then moisture can be removed from the structure, but energy efficiency is poor and drying rates are not optimized
Solution Approach 1:
The system performs preliminary cooling of the air stream before it enters the evaporator section. This pre-cooling action increases the temperature differential across the evaporator, enhancing moisture condensation efficiency and drying rate while optimizing energy utilization in the subsequent heating phase.
Solution Approach 2:
The system dynamically changes temperature parameters by cooling the air stream before the evaporator and then reheating it after condensation. This parameter manipulation optimizes the thermodynamic efficiency of the dehumidification process, improving both drying rate and energy efficiency by operating the evaporator at lower temperatures and returning warm air to the structure.
2Quantity of substance
If air is cooled to extract moisture, then dehumidification is achieved, but energy is lost without recovery
Solution Approach 1:
Instead of discarding the cooling energy used to condense moisture, the system recovers it by passing the cooled, dehumidified air through a heating coil that transfers heat back to the air stream. This recovery process eliminates energy waste and improves overall system efficiency while maintaining effective moisture removal.
Solution Approach 2:
The system converts the potentially harmful cold air stream (which would otherwise need to be reheated using additional energy) into a beneficial pre-cooled air supply for the evaporator. The cold air enhances condensation efficiency, and the subsequent reheating process restores thermal comfort, turning what would be a energy loss into a efficiency gain.
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 efficiently removes moisture from the air, optimizing drying rates and energy efficiency by pre-cooling and reheating air, thereby increasing the overall efficiency of the dehumidification process.
Implementation Method 1
The refrigerant system comprises a condenser section and an evaporator section... Air is displaced along the primary path from the primary inlet to the primary outlet... passing through the evaporator section which condenses moisture from the air
Implementation Method 2
The heat transfer system comprises a first coil and a second coil... A primary air path extends through the first coil, the evaporator section, and the second coil... pre-cooling and reheating air
Implementation Method 3
The heat transfer system comprises a first coil and a second coil... A primary air path extends through the first coil, the evaporator section, and the second coil... pre-cooling and reheating air
Data Source
AI summary
A dehumidification system for removing moisture from the air within a structure comprises a refrigerant system and a heat transfer system. The refrigerant system comprises a condenser section and an evaporator section. The heat transfer system comprises a first coil and a second coil. A primary air path extends through the first coil, the evaporator section, and the second coil. A secondary air path extends through the condenser section.