Vegetated Panel Interlayer for Moisture Control

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Solution Overview

Problem

Vegetated panels on vertical walls face issues with water accumulation due to capillary phenomena, leading to uneven moisture distribution, and are often heavy and expensive due to multiple structure parts, requiring frequent replacement.

Innovation Solution

The use of a water-permeable interlayer between growth media in the panels, made from materials like recycled plastic or cross-linked polyethylene foam, prevents direct contact and capillary flow while allowing excess water to drain, reducing the need for continuous watering and simplifying maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If growth media are placed vertically superposed without separation, then water flows freely by gravity, but capillary phenomenon causes water accumulation in lower portions leading to uneven moisture distribution

Engineering Contradiction:
Improvemoisture distribution uniformityVSAvoidpanel structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The panel is divided into multiple independent growth media modules separated by interlayers. Each module can be independently managed for water distribution, preventing capillary-driven water accumulation while maintaining structural organization. This segmentation allows controlled water flow and moisture distribution without requiring a completely complex integrated structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An interlayer is introduced as an intermediary element between vertically superposed growth media. This interlayer acts as a mediator that prevents direct capillary contact between media while allowing gravitational water flow, thus resolving the moisture distribution issue without adding excessive structural complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple structure parts are used to prevent water accumulation, then moisture distribution improves, but panel weight increases requiring more operators for handling

Engineering Contradiction:
Improvemoisture distribution uniformityVSAvoidpanel weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The interlayer is designed as a thin, lightweight film or sheet structure rather than a bulky rigid component. This thin-film approach provides the necessary functional separation to prevent capillary water accumulation while adding minimal weight to the panel, allowing easy handling without requiring additional operators.

Inventive Principle:
Principle #30Flexible shells and thin films

3Reliability

If growth media are separated by interlayer, then water permeability is controlled preventing capillary flow, but structure complexity increases

Engineering Contradiction:
Improvewater flow controlVSAvoidpanel structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The interlayer utilizes porous material properties to achieve selective water flow control. The porous structure allows gravitational water flow through the interlayer while preventing capillary-driven lateral flow between media. This natural material property provides effective water flow control without requiring complex mechanical or structural mechanisms.

Inventive Principle:
Principle #31Porous materials

4Adaptability or versatility

If whole panel is replaced to change plants, then plant renewal is achieved, but cost and operator requirements increase

Engineering Contradiction:
Improveplant replacement capabilityVSAvoidmaterial consumption
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The panel is segmented into independent growth media modules separated by interlayers. This segmentation enables individual modules to be removed and replaced without affecting other modules. Operators can replace only the specific growth media containing faded plants rather than the entire panel, reducing material consumption and operational costs while maintaining full plant renewal capability.

Inventive Principle:
Principle #1Segmentation

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

This solution ensures even moisture distribution, reduces the weight and cost of panels, and allows for easier replacement of growth media, making the system more economical and efficient in water usage and operator requirements.

Implementation Method 1

A significant problem is that the water has a tendency to accumulate in the lower portion of the panel, as soon as said panel is made vertical. This is due to the capillary phenomenon.

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

the interlayer is also chosen water permeable, in so far as it lets a part of water (which is the water in excess as explained hereunder) in a first growth medium flow to the second growth medium (notably by gravity).

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP2564689B1Vegetated panel and associated vegetated wall
Publication Date: 2015.10.14 SAINT GOBAIN CULTILENE
  • EP2564689B1 patent drawingFigure 1~2
  • EP2564689B1 patent drawingFigure 3~4
  • EP2564689B1 patent drawingFigure 5~6

AI summary

The invention relates to a vegetated panel comprising at least two growth media (3) for plants, characterized in that said growth media (3) are separated by an interlayer (7). Said interlayer (7) both prevents direct contact between both growth media (3), and is water permeable. The invention also relates to a vegetated wall comprising at least one vegetated panel (1).