Solar Trough Assembly With Flat Mirrors for Hotspot Control
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Solution Overview
Problem
Existing solar concentrator systems are complex, costly, and inefficient for small-scale household use, with issues related to heat management and structural integrity, limiting their effectiveness and affordability.
Innovation Solution
A solar energy concentrating system featuring trough-shaped solar concentrators with parabolic mirrors, a lightweight stainless steel design, and a transparent cover, supported by vertical metal plates, which tracks the sun to maximize radiation while minimizing hotspots and heat loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If solar concentrator systems are designed for small-scale household use, then the system size and cost are reduced, but the energy generation capacity and efficiency are limited
Solution Approach 1:
The solar concentrator system is divided into multiple modular trough units, each with its own parabolic mirror and solar cell array. These modules can be independently configured and scaled to meet specific household energy needs while maintaining high concentration ratios for efficient energy generation in a compact footprint.
Solution Approach 2:
The design employs nested structural elements where support frames, mounting brackets, and structural components are integrated within each other to minimize overall system volume. The trough structures are arranged to nest within the spatial envelope of the support framework, reducing the total space required for a given energy generation capacity.
2Productivity
If parabolic mirrors are used to concentrate solar radiation, then energy conversion efficiency is improved, but heat management complexity and structural requirements increase
Solution Approach 1:
The trough structures incorporate localized thermal management features at specific hotspots where concentrated solar radiation focuses. Heat sinks, thermal conductive materials, and cooling channels are strategically positioned only where needed rather than uniformly across the entire system, reducing overall complexity while maintaining effective heat dissipation at critical points.
Solution Approach 2:
The system converts the harmful concentrated heat into beneficial thermal energy for water heating or thermal storage applications. By integrating thermal collection capabilities into the trough design, the previously problematic heat concentration becomes a dual-purpose feature that simultaneously drives photovoltaic conversion and provides useful thermal energy.
3Productivity
If tracking mechanisms are added to follow the sun, then solar radiation reception is maximized, but mechanical complexity and cost increase
Solution Approach 1:
Instead of actively tracking the sun with complex motors and sensors, the system uses fixed-orientation troughs designed to passively capture solar radiation throughout the day. The inverted approach accepts that perfect tracking is unnecessary by optimizing the trough geometry and arrangement to maintain effective solar collection across a range of sun positions, thereby eliminating complex mechanical tracking while retaining high productivity.
4Productivity
If more solar cells are installed to increase power output, then energy generation is improved, but heat generation and cooling requirements increase
Solution Approach 1:
The system addresses heat management by transitioning from two-dimensional planar solar panels to three-dimensional trough structures. This dimensional change allows for enhanced heat dissipation through the vertical surfaces of the troughs and provides additional surface area for thermal radiation and convection, enabling higher power densities without proportional increases in temperature and cooling requirements.
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 high energy conversion efficiency with reduced operational and building costs, suitable for small-scale applications by evenly distributing solar rays and providing structural support.
Implementation Method 1
trough-shaped solar concentrators with parabolic mirrors
Implementation Method 2
concentrate maximum solar radiation
Implementation Method 3
photovoltaic (PV) solar cells are used in a solar panel to convert sunlight into electricity
Data Source
AI summary
The present invention provides a solar energy harvesting system comprising a plurality of parabolic-shaped trough solar concentrators and solar cells mounted on an assembly. A new solar panel design comprising trough-shaped solar concentrators with mirrors inside a box is disclosed. Unlike typical designs, these mirrors have flat surfaces along the trough, which helps spread out sunlight better and avoid heat concentration on the solar cells. The troughs are connected using folded flaps, keeping the panel light with thin stainless steel. A transparent cover sheet on top protects and supports the troughs. Multiple vertical plates support the structure, connecting the troughs using round protrusions on the troughs. The multiple components within the solar energy system cooperate to continually concentrate the incoming solar radiation on the solar cells as the Sun runs its course across the sky.