Monolithic HDPE Air Transfer Apparatus for Leak-Proof Cooling
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Solution Overview
Problem
Conventional cooling towers made of metal suffer from mold, mildew, calcination, and metal deposits on internal surfaces, reducing efficiency and requiring frequent maintenance, and have issues with fluid leaks and thermal stresses due to multiple parts and fasteners.
Innovation Solution
A monolithic air transfer apparatus or enclosure made from non-porous high-density polyethylene (HDPE) that prevents mold, mildew, and metal deposits, and is designed as a single, integral structure to eliminate leaks and thermal stresses, with heat exchangers also made from HDPE for improved durability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal is used for cooling tower inner surfaces, then structural strength is achieved, but mold, mildew, calcination and metal deposits form rapidly, reducing cooling efficiency
Solution Approach 1:
The patent changes the material parameter from metal to non-porous material (such as plastics or coated surfaces), which fundamentally alters the surface properties to prevent biological and chemical deposits while maintaining structural integrity and cooling efficiency
Solution Approach 2:
The patent employs composite material solutions, including non-porous plastic materials or coated metal surfaces, that combine the strength requirements with the anti-deposit properties needed for reliable cooling operation
2Ease of manufacture
If multiple separate parts and fasteners are used to construct cooling towers, then manufacturing flexibility is improved, but fluid leaks and thermal stresses occur due to imperfect sealing and differential expansion
Solution Approach 1:
The patent merges multiple separate parts and fasteners into a single monolithic structure manufactured as one piece, eliminating the interfaces between components that cause leakage and thermal stress, while maintaining manufacturing flexibility through various molding techniques
Solution Approach 2:
The patent changes the structural parameter from assembled components to a monolithic single-piece construction, which fundamentally eliminates sealing issues and thermal stress problems at joints while allowing flexible manufacturing through injection molding, blow molding, or other forming processes
3Device complexity
If multiple separate parts are assembled together, then manufacturing complexity is reduced, but maintenance costs increase due to seal failure and joint degradation over time
Solution Approach 1:
The patent combines multiple components into a single monolithic structure, eliminating the need for seals, fasteners, and joints that degrade over time and require maintenance, thereby reducing maintenance frequency and costs while keeping the overall design relatively simple
4Ease of manufacture
If conventional metal cooling towers are used, then initial manufacturing cost is lower, but operational costs increase due to frequent cleaning and replacement of degraded components
Solution Approach 1:
The patent changes the material parameter from metal to non-porous material, which prevents deposit formation and eliminates the need for frequent cleaning and component replacement, thereby reducing operational energy consumption and long-term operational costs despite potentially higher initial manufacturing costs
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 solution increases cooling efficiency, extends operational life, reduces maintenance and energy consumption, and lowers operational costs by preventing mold, mildew, and metal deposits, while ensuring leak-proof and stress-free operation.
Implementation Method 1
The air transfer apparatus or enclosure is manufactured from a non-porous material and/or comprising a non-porous material
Implementation Method 2
Evaporative coolers provide cool air by converting hot dry air through an evaporative process. This evaporative process works by forcing warm air through fluidly moist heat exchange pads to remove the hot dry air's heat
Implementation Method 3
Indirect evaporative cooling uses a heat exchanger to remove heat from a supply air stream without adding moisture
Data Source
AI summary
An air transfer apparatus being made as a monolithic or an integral structure or enclosure. The monolithic air transfer apparatus or enclosure is made from a non-porous material and is made from any of the manufacturing methods of molding, injection molding, blow molding or extruding. The monolithic air transfer apparatus or enclosure can be any of a cooling tower, a swamp cooler or a cooling Indirect Direct Evaporative Cooler. The monolithic air transfer apparatus has at least one integral cavity manufactured therein and at least one heat exchanger pad can be attached to the monolithic air transfer apparatus or made integral with the monolithic air transfer apparatus.