Mobile Albedo Measurement Bench with Leveling Pyranometers
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Solution Overview
Problem
Existing albedo measurement stations are complex to assemble, costly, and limited in mobility and accessibility, making them unsuitable for widespread use in the field of bifacial photovoltaic module assessment.
Innovation Solution
A mobile albedo measurement bench with pyranometers attached to a leveling tray on an adjustable arm, ensuring parallel alignment with the surface, allowing for accurate and reliable measurements while being lightweight and cost-effective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If commercial albedo measurement stations are used, then measurement accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The measurement system is divided into separate functional modules: a tripod for positioning, an adjustable arm for positioning the pyranometer, and the pyranometer itself for measurement. This segmentation allows each component to be optimized independently and simplifies assembly compared to integrated commercial stations.
Solution Approach 2:
An adjustable arm serves as an intermediary mechanism between the tripod and the pyranometer, providing flexible positioning and alignment. This intermediary component simplifies the overall structure while maintaining measurement accuracy by allowing precise adjustment of the pyranometer's position and orientation.
2Measurement precision
If commercial albedo measurement stations are used, then measurement accuracy is improved, but cost increases
Solution Approach 1:
The invention uses standard, off-the-shelf components such as tripods, adjustable arms, and pyranometers that can be purchased independently at reasonable costs. Rather than manufacturing a complex integrated system, the design assemblies inexpensive, readily available parts to achieve the same measurement function at lower cost.
Solution Approach 2:
The tripod and adjustable arm components serve multiple functions: positioning, alignment, and support for the pyranometer. This multi-functionality reduces the need for additional specialized components, thereby lowering overall system cost while maintaining measurement accuracy.
3Measurement precision
If commercial albedo measurement stations are used, then measurement capability is improved, but mobility decreases
Solution Approach 1:
By separating the system into a tripod, adjustable arm, and pyranometer, each component remains lightweight and easily transportable. The modular design allows the components to be packed separately and assembled quickly at measurement locations, significantly improving mobility compared to heavy integrated commercial stations.
Solution Approach 2:
The adjustable arm provides dynamic positioning capability, allowing the pyranometer to be repositioned and reoriented as needed during measurement. This dynamic adjustment feature enables the system to adapt to various measurement conditions without requiring a heavy, fixed commercial station.
4Stability of the object's composition
If fixed albedo measurement stations are used, then measurement stability is improved, but adaptability to uneven surfaces decreases
Solution Approach 1:
The adjustable arm allows dynamic adjustment of the pyranometer's position and orientation to compensate for uneven surfaces. The arm can be extended, retracted, and angled to maintain proper measurement geometry regardless of surface conditions, providing both stability and adaptability.
Solution Approach 2:
The system provides local adjustment capability through the adjustable arm, allowing the pyranometer to be positioned optimally for each specific measurement location. This local adaptability ensures accurate measurements on uneven surfaces while maintaining overall system stability through the tripod base.
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 device provides accurate, portable, and affordable albedo measurements suitable for uneven surfaces and remote locations, enhancing the feasibility and efficiency of bifacial photovoltaic module installations.
Implementation Method 1
pyranometers for measuring the incidence of solar radiation
Implementation Method 2
The leveling tray is adjustable to ensure that the pyranometers are perfectly parallel with the surface to be analyzed
Data Source
AI summary
With the growing adoption of bifacial photovoltaic modules, the albedo, or reflection coefficient of a surface, has become a highly important characteristic in the design of solar power plants using this type of photovoltaic module. This utility model consists of a mobile and portable albedo measuring device that makes it easier to carry out a field evaluation of the different ground covers and their respective solar radiation reflection coefficients. This is a fundamental step in assessing the generation potential calculated during the design phase of photovoltaic plants using bifacial modules. The device of the present utility model consists of a support that holds one end of an arm, a pair of pyranometers installed at the other end of the arm, and the pyranometers are fixed to the arm by a leveling element to guarantee the parallelism of the pyranometers with the analyzed surface.