Modular Textile Fish Passage System for Small Hydropower Cost Reduction
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Solution Overview
Problem
Small hydropower facilities face significant costs in providing effective and safe fish passage systems, making them financially unworkable due to the high expense of conventional solutions for allowing migratory fish to navigate dams.
Innovation Solution
A modular fish passage system using high-strength textiles for a chute with adjustable baffles and a flexible conduit configuration, allowing for easy assembly, disassembly, and transport, which can be customized for different sites and fish species, and includes smart fabric sensors for environmental monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fish passage systems are installed at small hydropower facilities, then fish passage effectiveness is improved, but project cost becomes prohibitively high and financially unworkable
Solution Approach 1:
The fish passage system is divided into modular components including interchangeable liners, baffles, and structural elements that can be assembled in different configurations. This segmentation allows the system to be scaled and customized for small hydropower facilities without requiring expensive conventional designs, directly addressing the cost-effectiveness challenge while maintaining fish passage effectiveness.
Solution Approach 2:
The system incorporates interchangeable liners and adjustable baffles that can be modified based on specific site conditions, fish species requirements, and flow conditions. This dynamic adaptability allows the same basic structure to serve multiple purposes and accommodate varying requirements, reducing the need for expensive custom-built solutions at each facility.
2Adaptability or versatility
If fish passage systems are made adaptable to different sites and fish species, then versatility is improved, but system complexity increases
Solution Approach 1:
The system employs universal modular components such as standard-sized liners, baffles, and structural elements that can be configured for different fish species and site conditions. These multi-functional components reduce the need for completely different designs for each application, achieving versatility without proportionally increasing overall system complexity.
Solution Approach 2:
The system achieves adaptability through parameter adjustments rather than fundamental design changes. Interchangeable liners with different surface characteristics, adjustable baffle configurations, and variable flow rates allow the same structural framework to accommodate different fish species and environmental conditions, maintaining simplicity while providing customization.
3Ease of operation
If modular and transportable fish passage systems are used, then ease of installation and maintenance is improved, but structural strength may be compromised
Solution Approach 1:
The system is segmented into modular components connected through robust joining mechanisms. This segmentation enables easy assembly and disassembly for transport and maintenance while the connection design ensures structural integrity when assembled, resolving the contradiction between modularity and strength.
Solution Approach 2:
The system utilizes composite construction combining rigid structural elements with flexible liners and reinforcement features. This composite approach maintains structural strength and durability while allowing modular assembly and disassembly, as the rigid components provide structural integrity and the flexible elements accommodate movement and connection variations.
Data Source
AI summary
A fish passage system having flexible textile materials forming a conduit to transport fish across river barriers encountered during migration. The system can include modular support structures that can be independently secured to riverbeds to form conduit supports, dams, hydropower structures, and the like.