Pneumatic PV Panel Cleaning System to Reduce Energy and Water Use
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional PV panel cleaning methods are energy intensive, labor-intensive, environmentally detrimental, and inefficient, often using liquids that can freeze and damage components, leading to reduced energy production and voiding warranties.
Innovation Solution
A modular PV panel cleaning system utilizing pressurized air, rodless pneumatic linear actuators, and a panel-cleaning device with nozzles and a wiper blade, operated by a programmable controller, which scans and detects debris to optimize cleaning without rotating parts or liquids, allowing PV panels to generate additional energy to power the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cleaning methods using liquids (water, detergent) are employed, then cleaning effectiveness is improved, but energy consumption increases and environmental harm occurs
Solution Approach 1:
The patent replaces liquid-based cleaning mechanisms with a pneumatic system using compressed air. The compressed air is directed through nozzles onto the PV panels to remove debris, eliminating the need for water and detergent while maintaining cleaning effectiveness. This substitution reduces energy consumption associated with pumping and heating liquids.
Solution Approach 2:
The invention utilizes pneumatic principles by storing compressed air in a tank and releasing it through controlled nozzles to clean the PV panels. The pneumatic actuation provides the necessary force to dislodge and remove debris without requiring mechanical contact or liquid application, thereby reducing overall system energy demand.
2Reliability
If liquid cleaning agents are used, then cleaning performance is enhanced, but environmental damage and warranty voiding occur
Solution Approach 1:
The patent replaces liquid-based cleaning mechanisms with a pneumatic system using compressed air. The compressed air is directed through nozzles onto the PV panels to remove debris, eliminating the need for water and detergent while maintaining cleaning effectiveness. This substitution reduces energy consumption associated with pumping and heating liquids.
Solution Approach 2:
The invention uses compressed air, an inert and environmentally benign medium, to clean the PV panels. Unlike chemical detergents or water that can cause environmental contamination or damage, compressed air leaves no residue and causes no environmental harm, thus preserving both cleaning performance and environmental integrity.
3Ease of operation
If manual cleaning is performed, then labor flexibility is maintained, but labor intensity and time consumption increase
Solution Approach 1:
The system enables automated cleaning operation where the compressed air storage tank and nozzle system automatically remove debris from PV panels without requiring continuous human intervention. The system can be triggered by sensors detecting debris accumulation or operated on a scheduled basis, significantly reducing labor intensity while maintaining operational flexibility.
Solution Approach 2:
The invention incorporates sensors that detect debris accumulation on PV panels and provide feedback to the control system. This feedback mechanism triggers automated cleaning cycles when needed, optimizing the balance between labor savings and cleaning effectiveness without requiring constant manual monitoring or intervention.
4Area of stationary object
If rotating parts are included in the cleaning device, then cleaning coverage is improved, but maintenance requirements and system complexity increase
Solution Approach 1:
The patent replaces rotating mechanical components with a stationary nozzle system that directs compressed air at the PV panels. The high-velocity air stream effectively removes debris across the panel surface without requiring physical contact or rotation, thereby simplifying the system architecture and reducing maintenance needs while maintaining adequate cleaning coverage.
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 net energy gain, reduces maintenance needs, and eliminates human involvement, while being environmentally friendly and warranty-safe, as it cleans PV panels efficiently without using liquids, thus enhancing energy production and system reliability.
Implementation Method 1
a storage tank containing pressurized air, first and second linear actuators, and a panel-cleaning device wherein the pressurized air contained in the storage tank operates the first and second actuators and the panel-cleaning device
Implementation Method 2
the panel-cleaning device includes one or more nozzles and a wiper blade to clean PV panels
Implementation Method 3
one or more nozzles and a wiper blade to clean PV panels
Implementation Method 4
sensors associated with the first and second actuators and panel-cleaning device and configured to scan and detect fluid and debris on the PV panels
Data Source
AI summary
A panel cleaning system is provided which includes an inflatable wiper and a nozzle. In one aspect, the panel cleaning system includes pressurized air, linear actuators, and a panel-cleaning inflatable wiper wherein the pressurized air and the panel-cleaning wiper are configured to clean PV panels. A further aspect includes an inflatable wiper, a heater configured to heat pressurized air before the air flows out of nozzles and multiple air-driven pistons.