Light Conversion Film for Microalgae Pipeline Cultivation
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Solution Overview
Problem
Existing microalgae cultivation methods face challenges with unstable solar energy, high electricity costs from LED lighting, and difficulties in achieving large-scale applications due to these limitations.
Innovation Solution
A light supplementation and thermal insulation device for microalgae pipeline cultivation, comprising a combined light conversion film body with a bottom opaque film, a middle reflective film, and an upper light conversion film coated with fluorescent powder, which converts white sunlight into deep red light, and a lifting system to adjust the device's position and angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED light is used to supplement light energy for microalgae cultivation, then the light energy for photosynthesis is improved, but the electricity consumption and cultivation cost increase significantly
Solution Approach 1:
The patent introduces reflective films and light-reflecting boards as intermediary elements between the sunlight source and microalgae pipelines. These intermediaries capture and redirect sunlight that would otherwise be wasted, providing supplemental light energy without requiring additional electricity consumption from LED sources
Solution Approach 2:
The system utilizes free sunlight as a self-sufficient light source, combined with passive reflective structures that automatically redirect light throughout the cultivation facility. This eliminates the need for active energy-consuming LED supplementation while maintaining adequate light levels for photosynthesis
2Illumination intensity
If open raceway ponds or closed photobioreactors are used for microalgae cultivation, then sunlight utilization is improved, but the stability of solar energy due to weather, season, and geographical factors reduces cultivation reliability
Solution Approach 1:
The patent employs reflective boards and light-reflecting structures positioned strategically to capture and redirect sunlight in advance, ensuring that microalgae pipelines receive supplemental light even when direct sunlight is reduced due to weather conditions, seasons, or geographical limitations
Solution Approach 2:
The system uses adjustable reflective boards that can be repositioned to track the sun's movement throughout the day and across different seasons, dynamically optimizing light capture and redistribution to maintain stable illumination levels for microalgae cultivation regardless of external solar variability
3Productivity
If LED light is used for microalgae cultivation, then the light energy for photosynthesis is improved, but the cultivation cost increases due to high electricity consumption
Solution Approach 1:
The patent introduces reflective films and light-reflecting boards as intermediary elements between the sunlight source and microalgae pipelines. These intermediaries capture and redirect sunlight that would otherwise be wasted, providing supplemental light without requiring additional electricity consumption from LED sources
Solution Approach 2:
The system replaces expensive LED lighting infrastructure with low-cost passive reflective structures and lightweight insulation materials. These inexpensive components achieve the same productivity enhancement at a fraction of the cost, making large-scale cultivation economically viable
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 enhances the emission intensity of deep red light by 25% to 35%, promoting microalgae growth, increasing OD values, and facilitating early harvesting, while also providing effective thermal insulation during nighttime.
Implementation Method 1
the upper light conversion film comprises fluorescent powder, and the fluorescent powder is fluorescent powder capable of converting white light from sunlight into red light
Implementation Method 2
the combined light conversion film body comprises a bottom opaque film, a middle reflective film, and an upper light conversion film
Implementation Method 3
providing effective thermal insulation during nighttime
Data Source
AI summary
A light supplementation and thermal insulation device for microalgae pipeline cultivation and a method for microalgae pipeline cultivation is provided. The light supplementation and thermal insulation device has a combined light conversion film body, fixing parts located at an upper end and a lower end of the combined light conversion film body, and lifting systems; the combined light conversion film body comprises a bottom opaque film, a middle reflective film, and an upper light conversion film; the bottom opaque film, the middle reflective film, and the upper light conversion film are fixed together as a whole by the fixing parts at the upper end and the lower end; the lifting systems are connected to the fixing parts at the upper end. It solves the problem of difficult light supplementation during the daytime in microalgae pipeline cultivation and also addresses the issue of thermal insulation during the nighttime.