Wind-Driven Water Circulation and Oxygenation Apparatus
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Solution Overview
Problem
Thermal-density stratification and oxygen depletion in bodies of water lead to habitat loss, nutrient accumulation, and eutrophication, as oxygen consumption exceeds replenishment rates, particularly in shallow water bodies with high oxygen demand.
Innovation Solution
A wind turbine-driven apparatus with submerged impellers and a buoyancy module for circulating water, capable of producing downdraft or updraft circulation, or both, to enhance mixing and oxygen delivery to deeper strata, using wind or solar power to maintain water quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If wind turbine-driven impellers are used to circulate water, then oxygen delivery to deeper strata is enhanced, but device complexity increases
Solution Approach 1:
The water circulation system is divided into multiple independent impeller units that can be positioned at different depths and orientations. Each impeller handles a specific circulation task (updraft or downdraft), allowing the system to achieve comprehensive water column mixing without requiring a single complex mechanism
Solution Approach 2:
The wind turbine shaft serves multiple functions: it directly drives impellers for water circulation, powers a compressor for air injection, and can connect to an alternator for electricity generation. This multi-functionality reduces the need for separate systems and mitigates the complexity increase
2Stability of the object's composition
If multiple impellers are used to produce both downdraft and updraft circulation, then water mixing effectiveness is improved, but device complexity increases
Solution Approach 1:
Multiple impellers with different circulation patterns (downdraft and updraft) are merged onto a single rotating shaft system. This allows both circulation types to be achieved through one integrated structure rather than separate systems, reducing overall complexity while maintaining mixing effectiveness
Solution Approach 2:
The system allows for dynamic configuration where impellers can be selectively activated or deactivated based on operational needs. The shaft can rotate in different directions or at different speeds to optimize the contribution of each impeller, providing flexibility without permanent structural complexity
3Use of energy by moving object
If wind power is used to drive the circulation system, then energy cost is reduced, but reliability decreases due to dependence on environmental conditions
Solution Approach 1:
The wind turbine system is designed to perform multiple functions: water circulation through impeller drive, air compression for aeration, and electricity generation through alternator. This multi-functionality ensures that even if wind conditions vary, the system can maintain operational value through different functions
Solution Approach 2:
The system generates its own electricity through the alternator connected to the wind turbine shaft, reducing dependence on external power sources. This self-generated power can be used to supplement wind-driven circulation during low-wind periods or to power auxiliary systems, improving reliability without requiring significant external energy input
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 apparatus effectively circulates and oxygenates water, creating an aerobic layer and offsetting oxygen demand in deeper strata, thereby improving water quality and reducing eutrophication and habitat degradation.
Implementation Method 1
Exposure of the wind turbine to environmental wind causes the impeller to rotate
Implementation Method 2
A buoyancy module is disposed adjacent the shaft to maintain the shaft in an upright vertical orientation when a substantial portion of the shaft and the at least one impeller is submerged
Implementation Method 3
the impeller to rotate to thereby circulate water to and from selected depths
Implementation Method 4
The apparatus can be configured to produce a mixing or blending of a depth strata, a downdraft circulation, or an updraft circulation
Data Source
AI summary
Circulation and aeration systems for ponds, lakes, sounds, treatment basins, and other bodies of water. In one set of embodiments, water is pumped in a downward direction to circulate ambient oxygen from the atmosphere and produced by plant photosynthesis to deeper strata. In other embodiments, water is circulated within predetermined depth strata. Each system preferably includes a wind turbine, a drive shaft, and an impeller array. Some systems include conduits for conveying and mixing water from and to selected depth strata, or configured as an open impeller-mixing apparatus. Alternative embodiments include systems which incorporate electrical power generation by the wind turbine, solar power generation and use hybrid wind-solar apparatus, and combinations of land-based and in-water based apparatus. A pneumatic pump diffuser and a control flow centered orifice diffuser line are employed in some embodiments.