Solar water heating panel
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Solution Overview
Problem
Current solar water heating systems have limitations in heating efficiency due to the temperature gradient between the lower and upper portions of the water tank and solar panel, which restricts the overall performance of the system.
Innovation Solution
A solar water heating panel with a split manifold and concentric multilayered water heating pipes, where the manifold is divided to optimize fluid flow, and the pipes are designed with thermally conductive and opaque materials to enhance heat transfer, along with a reflective heat-promoting surface and vacuum module for improved efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional single manifold design is used, then the device complexity is low, but the heating efficiency is insufficient due to poor fluid flow distribution
Solution Approach 1:
The manifold is divided into multiple segments (first manifold, second manifold, third manifold, fourth manifold) with separate inlet and outlet portions. This segmentation allows independent optimization of fluid flow paths, improving heat transfer efficiency by ensuring uniform water distribution across all pipes while maintaining manageable structural complexity through modular design.
2Productivity
If conventional single-layer pipes are used, then the manufacturing is simpler, but the heat transfer capability is reduced
Solution Approach 1:
The pipes are constructed as concentric multilayered structures with an inner layer, intermediate layer, and outer layer. The inner layer uses dark/opaque material for heat absorption, the intermediate layer provides thermal conduction, and the outer layer offers structural integrity and UV protection. This composite structure significantly enhances heat transfer capability while the modular layered approach facilitates manufacturing through specialized pipe production techniques.
Solution Approach 2:
Different layers of the pipe are assigned specific functional properties: the inner layer is made dark and opaque to maximize solar radiation absorption, the intermediate layer is thermally conductive to facilitate heat transfer to water, and the outer layer is transparent or translucent to allow heat penetration. This local differentiation of material properties optimizes heat transfer at each stage of the thermal process.
3Temperature
If the upper cover is made opaque, then heat retention is improved, but solar energy penetration to pipes is reduced
Solution Approach 1:
The upper cover is designed with selective optical properties: it is transparent or translucent to specific wavelengths of solar radiation to allow energy penetration to the pipes, while simultaneously providing thermal insulation to retain heat within the system. This local differentiation of optical and thermal properties resolves the contradiction between heat retention and solar energy utilization.
Solution Approach 2:
The upper cover may incorporate composite materials or coatings that selectively transmit solar radiation while blocking thermal escape. This allows the cover to perform dual functions: permitting solar energy to reach the heat-absorbing pipes while maintaining thermal retention to improve overall system efficiency.
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 significantly enhances the heating efficiency of solar water heating systems by optimizing fluid flow and heat transfer, allowing for better solar energy utilization and increased water heating capacity.
Implementation Method 1
the intermediate layer may be provided from thermally conductive materials to facilitate heating of water flowing within the internal lumen
Implementation Method 2
the inner layer preferably may be provided from dark and/or opaque material preferably to facilitate and/or improve heat transfer
Implementation Method 3
the outer layer may be provided from clear and/or transparent materials so as to allow increase heat penetration to the inner lumen of the water heating pipes
Implementation Method 4
the coating may for example include an ultraviolet (UV) selective coating so as to filter any harmful UV rays
Implementation Method 5
the solar panel may further comprise a heat promoting surface, for example including but not limited to reflective surface, to maximize and/or amplify the solar heating effect
Data Source
AI summary
A device and system for solar water heating that comprises a water heating panel with improved heat transfer. The water heating panel comprises a pipe distributer and a manifold having two separate portions comprising an inlet portion and an outlet portion and: a plurality of fluid heating pipes that are configured to be in fluid communication between the manifold and the pipe distributer.