Sustained Release Irrigation with Capillary Water Delivery
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Solution Overview
Problem
Conventional overhead irrigation methods are inefficient, leading to water loss through rapid drainage and surface evaporation, and result in algae growth and nutrient leaching, while existing sub-irrigation systems for small-scale plant cultures are bulky and require additional water supply systems.
Innovation Solution
A sustained release irrigation apparatus featuring a reservoir, support structure with perforations, an absorbent surface, and a water-permeable top layer that utilizes capillary action to deliver water to plant roots without waste, allowing easy replacement of the top layer and eliminating the need for an additional water supply system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If overhead irrigation method is used, then water can be delivered to plants, but water loss occurs due to rapid drainage and surface evaporation
Solution Approach 1:
The patent inverts the traditional overhead irrigation approach by implementing sub-irrigation from beneath the soil surface. Water is supplied to the reservoir below the plant container, and capillary action draws water upward through the porous base layer into the soil and plant roots, eliminating surface evaporation and runoff losses associated with overhead irrigation.
Solution Approach 2:
The patent utilizes capillary action, a hydraulic phenomenon, to transport water from the reservoir through the porous base layer into the soil. This passive hydraulic mechanism eliminates the need for pumps or pressurized systems while ensuring efficient water delivery directly to the root zone without waste.
2Quantity of substance
If overhead irrigation is used, then plants receive water, but algae growth and weed growth occur due to water logging on soil surface
Solution Approach 1:
By inverting the irrigation direction to supply water from below rather than above, the patent prevents water from accumulating on the soil surface. This eliminates the conditions necessary for algae and weed growth while still delivering adequate moisture to plant roots through capillary action.
3Quantity of substance
If overhead irrigation is used, then plants are watered, but fertilizer and nutrient leaching occurs from soil
Solution Approach 1:
The patent employs capillary action to deliver water slowly and directly to the root zone through the porous base layer. This controlled hydraulic delivery prevents excessive water application that would cause nutrient leaching, while still providing sufficient moisture for plant uptake and fertilizer effectiveness.
4Loss of energy
If sub-irrigation system is used for small scale plant cultures, then water management is improved, but apparatus becomes bulky and requires additional water supply system
Solution Approach 1:
The patent combines the water storage reservoir, water delivery mechanism, and plant support structure into a single integrated apparatus. The reservoir integrates directly with the porous base layer, eliminating the need for separate piping, pumps, or control systems, thereby reducing overall system complexity and bulkiness while maintaining efficient water management.
Solution Approach 2:
The apparatus utilizes passive capillary action to deliver water from the reservoir to the soil without requiring external pumps, valves, or control systems. This self-service mechanism eliminates complex water supply infrastructure while achieving efficient water management through the inherent physical properties of the porous materials.
5Stability of the object's composition
If water permeable top layer cannot be replaced easily, then structural integrity is maintained, but maintenance difficulty increases when layer becomes soiled or damaged
Solution Approach 1:
The patent segments the water permeable top layer as a separate, removable component that can be independently replaced without affecting the rest of the apparatus. The porous base layer is designed as a distinct element that interfaces with the reservoir, allowing it to be cleaned or replaced while maintaining the structural integrity of the overall system.
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 apparatus effectively manages water for small-scale plant cultures by minimizing water wastage, preventing algae growth, and allowing for easy maintenance, while reducing bulkiness and water supply complexity.
Implementation Method 1
The water collected in the reservoir flows upwards to the water permeable top layer and the soil inside a pot utilizing the capillary action of water
Data Source
AI summary
A sustained release irrigation apparatus for effective water management. The sustained release irrigation apparatus includes a reservoir, a support structure, an absorbent surface, a water permeable top layer and a top opening on the water permeable top layer for filling water in the reservoir. The support structure is positioned on the reservoir and designed to support a potted plant thereon. The absorbent surface is positioned on the support structure and includes an absorbent opening. The top opening positioned on the water permeable top layer receives water from a water source and fills water into the reservoir. The water collected in the reservoir flows upwards to the water permeable top layer and then reaches the soil inside a pot thereby making water available to the roots of the potted plant without any wastage.