Rotatable Brush Solar Panel Cleaning for Water-Deficit Sites
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Solution Overview
Problem
Existing solar panel cleaning systems face inefficiencies in water-deficient environments and dust retention issues, as water-rich solutions are costly and impractical, while dust-repelling coatings fail to effectively remove all dust, leading to reduced panel efficiency.
Innovation Solution
A solar panel cleaning apparatus and method using rotatable brushes with adjustable angles and drives, allowing for efficient dust removal without water, featuring a support assembly and drive mechanisms to maintain uniform contact and pressure, suitable for water-deficit environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water-rich cleaning solutions are used to wash away dust on solar panels, then cleaning effectiveness is improved, but water consumption increases and cost increases
Solution Approach 1:
The invention extracts the water component from the cleaning system entirely, using only dry brush mechanisms to remove dust. The cleaning apparatus uses rotatable brushes that mechanically remove dust through friction and lifting forces, eliminating the need for water-rich solutions while maintaining cleaning effectiveness in water-deficient environments.
Solution Approach 2:
The invention replaces the water-based cleaning mechanism with a purely mechanical brush-based system. The rotatable brushes use mechanical forces including friction, lifting, and sweeping actions to remove dust particles from solar panel surfaces without requiring any liquid cleaning medium.
2Quantity of substance
If dust-repelling coating is used to prevent dust accumulation, then water usage is reduced, but dust removal effectiveness decreases
Solution Approach 1:
The cleaning system performs preliminary mechanical removal of dust before moisture can cause dust to become sticky and adhere to panels. By continuously removing dust through brush action, the system prevents the formation of stubborn dust-moisture combinations that would be difficult to remove, maintaining effectiveness even in humid conditions.
Solution Approach 2:
The rotatable brushes are designed to self-clean and maintain their cleaning effectiveness through continuous rotation and contact with the panel surface. The mechanical action automatically removes dust without requiring external water intervention, making the system self-sufficient in water-deficient environments.
3Area of stationary object
If brushes are rotated perpendicular to the direction of travel for cleaning, then cleaning coverage is maximized, but brush contact uniformity decreases
Solution Approach 1:
The invention uses asymmetric brush arrangements where brushes are positioned at different angles and locations relative to the direction of travel. This asymmetric configuration allows different parts of the brush assembly to contact the panel surface at optimal angles, maintaining uniform contact pressure across the entire panel width while still providing comprehensive cleaning coverage.
Solution Approach 2:
The invention adds a lateral dimension to brush contact by positioning brushes that extend beyond the panel edges. This dimensional extension allows brushes to contact the panel surface at multiple points simultaneously, distributing contact pressure uniformly across the panel while maintaining broad cleaning coverage through the extended brush arrangement.
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 effectively cleans solar panels in water-deficit areas without water usage, maintaining panel efficiency by removing dust and debris efficiently, even in the presence of moisture from humidity or rain.
Implementation Method 1
one or more rotatable brushes each having a rotational axis and a drive configured to translate each of the one or more rotatable brushes
Implementation Method 2
a drive configured to translate each of the one or more rotatable brushes in a direction that is not perpendicular to the rotational axis
Data Source
AI summary
Embodiments of solar panel cleaning apparatuses, solar panel cleaning systems, and solar panel cleaning methods are disclosed. In certain embodiments, the disclosed solar panel cleaning apparatuses, systems and methods do may not require any water or other cleaning liquids in the whole cleaning process, which makes them prominent well suited in for water-deficit environments such as deserts. In one embodiment, the solar panel cleaning apparatus comprises one or more rotatable brushes each having a rotational axis and a drive configured to move each of the one or more rotatable brushes in a direction that is not perpendicular to the rotational axis. The solar panel cleaning apparatus is may be configured such that the angle of the rotational axis of at least one of the one or more rotatable brushes is adjustable relative to the direction of travel.