Sun-Tracking Light Distributor Walls for Algae Culture Illumination
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Solution Overview
Problem
Existing photosynthetic culture systems, both open-ended and closed, face inefficiencies in light distribution due to static light distributors that do not account for the changing solar position throughout the day and year, leading to suboptimal light penetration and algae production.
Innovation Solution
A sun-tracking light distributor system with adjustable light distribution walls made of transparent materials, forming elongated channels that can change orientation to follow the sun's position, ensuring consistent light distribution across the aqueous volume regardless of time or season.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If static light distributors are used, then the system structure is simple and stable, but light distribution efficiency deteriorates due to inability to track solar position changes
Solution Approach 1:
The light distributor walls are made movable through a displacement system that enables them to change orientation dynamically. The walls can rotate or pivot to track the sun's position throughout the day and across seasons, transforming the static structure into a dynamic one that adapts to varying solar angles while maintaining structural integrity through controlled mechanical movement.
Solution Approach 2:
The orientation parameters of the light distribution walls are changed continuously to match the solar position. By adjusting the angular parameters of the walls relative to the incident sunlight, the system optimizes light capture and distribution efficiency without requiring complete structural redesign, thereby managing complexity through parameter adjustment rather than structural overhaul.
2Productivity
If light distribution walls are made movable to track the sun, then light distribution efficiency is improved, but device complexity and operational difficulty increase
Solution Approach 1:
The displacement system is designed to enable the light distribution walls to track the sun automatically or with minimal intervention. The system may utilize passive tracking mechanisms that exploit natural forces such as thermal expansion, gravity, or elastic deformation in response to solar heating, allowing the structure to self-adjust its orientation without requiring complex active control systems or frequent manual operation.
3Productivity
If the light distributor adapts to solar position changes, then light distribution efficiency is improved, but structural stability may be compromised
Solution Approach 1:
The light distribution system is divided into modular segments or panels that can move independently or in coordinated groups. This segmentation allows individual sections to adapt to solar position changes while the overall structure maintains stability through the interconnected modular units, distributing mechanical stresses and enabling controlled movement without compromising the integrity of the entire structure.
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 enhances light distribution efficiency, maintaining optimal light intensity for algae production by dynamically adjusting to the sun's position, thereby improving photosynthetic culture outcomes in both open and closed systems.
Implementation Method 1
two light distribution walls made of a transparent material allowing sunlight to pass therethrough
Implementation Method 2
a displacement system operatively connected to at least one of the two light distribution walls, the displacement system being adapted to change an orientation of the at least one of the two light distribution walls to track a solar position
Implementation Method 3
Photosynthetic culture in aqueous liquids is often used for the production of algae
Data Source
AI summary
A sun-tracking light distributor system for use in one of an open-ended system and a closed photo-bioreactor for a photosynthetic culture having an aqueous liquid is described. The system comprises: two light distribution walls made of a transparent material allowing sunlight to pass therethrough, the two light distribution walls creating an elongated channel with an interior space adapted to receive the sunlight and an exterior surface adapted to be partly immersed in the aqueous liquid in use; and a displacement system operatively connected to at least one of the two light distribution walls, the displacement system being adapted to change an orientation of the at least one of the two light distribution walls to track a solar position with respect to at least one axis.