Solar Water-Heating Panel with Finned Risers for Heat Retention
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Solution Overview
Problem
Conventional solar water-heating systems face inefficiencies in heat retention and solar radiation absorption due to airflow cooling and lack of optimized structural features that enhance heat transfer and flexibility.
Innovation Solution
The solar water-heating panel design incorporates parallely arranged risers with longitudinal fins and baffles, along with headers featuring non-convex exterior portions and support elements, to maximize solar radiation absorption, reduce airflow cooling, and maintain flexibility for wind resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional solar water-heating systems are used, then the structure is simple, but heat retention is poor due to airflow cooling
Solution Approach 1:
The riser is segmented into multiple sections with longitudinal fins dividing the interior into separate flow channels. This segmentation reduces airflow cooling by creating distinct heated zones while maintaining structural simplicity through modular design
Solution Approach 2:
Longitudinal fins are added to the riser structure, extending the heat absorption surface into the third dimension. This increases the effective area for solar radiation absorption and creates multiple thermal zones that reduce harmful airflow cooling effects
2Area of stationary object
If risers are arranged closely to maximize space utilization, then area efficiency improves, but solar radiation absorption decreases due to mutual shading
Solution Approach 1:
Transverse baffles are positioned at specific heights within the risers to create vertical flow separation. This three-dimensional flow management allows closely spaced risers to maintain independent thermal zones, maximizing both space utilization and solar radiation absorption by preventing thermal interference between adjacent risers
Solution Approach 2:
Different sections of the riser are given different functions through localized baffles and fins. Upper sections focus on heat absorption while lower sections manage flow distribution, allowing optimal performance in closely packed arrangements
3Loss of energy
If rigid structural features are added to enhance heat transfer, then heat retention improves, but flexibility for wind resistance decreases
Solution Approach 1:
The riser walls are designed as thin-walled flexible structures that can bend and deform in response to wind loads. Despite this flexibility, the internal longitudinal fins and transverse baffles maintain their relative positions to preserve heat transfer functionality, achieving both adaptability and thermal performance
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
This design enhances heat retention by minimizing airflow cooling, increasing solar radiation absorption, and allowing for flexible installation while maintaining structural integrity.
Implementation Method 1
risers configured for utilizing solar radiation impinging thereon to heat a fluid, e.g., water, flowing therethrough
Implementation Method 2
configured for utilizing solar radiation impinging thereon to heat a fluid
Implementation Method 3
each comprises a longitudinal fin projecting sidewardly therefrom toward, and contacting, an adjacent riser
Implementation Method 4
each of the risers further comprises a baffle formed longitudinally along its exterior and projecting upwardly therefrom
Data Source
AI summary
A solar water-heating panel is provided, comprising a plurality of risers configured for utilizing solar radiation impinging thereon to heat a fluid therein. Each riser comprises a riser wall defining a fluid path for flow therethrough of the fluid. The panel further comprises one or more headers for facilitating delivery of the fluid between the panel and an external source of the fluid. The risers are parallely-arranged and separate from one another, and each comprises a longitudinal fin projecting sidewardly therefrom toward, and contacting, an adjacent riser.