Greenhouse Louver Light Blocking Air Permeable Design
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Solution Overview
Problem
Greenhouse growers face the challenge of balancing light emission regulations by blocking external light while allowing air circulation, as existing solutions fail to effectively combine these contradictory requirements.
Innovation Solution
The implementation of air-permeable, light-blocking means featuring overlapping, profiled louvers that optically block light emission while allowing air passage through defined channels, integrated as a separate construction element on the greenhouse's outside or inside walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the outside wall is blocked to prevent light emission, then light emission control is improved, but air circulation is hindered
Solution Approach 1:
The outside wall is segmented into multiple vertical louvers spaced apart, creating discrete openings between them. This segmentation allows light to be blocked by each louver while air can circulate through the gaps between adjacent louvers, resolving the contradiction between light control and air circulation.
Solution Approach 2:
Different parts of the outside wall have different properties: the louvers provide light blocking where needed, while the spaces between louvers provide air circulation pathways. This local differentiation of functional properties allows simultaneous achievement of light emission control and air circulation.
2Ease of operation
If the outside wall is opened to enable air passage, then air circulation is improved, but light emission control is worsened
Solution Approach 1:
The wall opening is segmented into multiple narrow vertical slots formed by adjacent louvers. This segmentation allows air to pass through the gaps while the louvers themselves block light, achieving both air circulation and light emission control.
Solution Approach 2:
The openings in the outside wall are designed with specific local properties - narrow vertical gaps between louvers that favor air flow while the louver structures block light. This local quality differentiation resolves the contradiction.
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 effectively contains light within the greenhouse, adhering to emission regulations while enabling necessary air circulation, enhancing climate control during lighting hours.
Implementation Method 1
light being emitted by the lighting system in the greenhouse is optically blocked by overlapping parts of said louvers and cannot exit from the greenhouse
Implementation Method 2
adjacent louvers bound respective air channels, so that air can be drawn in from outside the greenhouse or be exhausted from the interior of the greenhouse between the louvers and through the air channels
Data Source
Figure 1
Figure 2~3
AI summary
A greenhouse (1) comprising at least one gutter section (4) and a roof extending from said gutter section, which roof comprises a ridge section (6) and glazing bars which are connected to an edge of the gutter section (4) near one end and to the ridge section (6) near the other end, whilst panes (7) are provided between adjacent glazing bars, which panes are supported in rebates of the glazing bars/gutter section (4) and between two flanges of the ridge section (6), characterised in that an outside wall side (10) of the greenhouse is at least partially provided with air permeable light-blocking means (11) so as to block emission of light from the greenhouse (1) into the atmosphere, said light-blocking means (11) comprising louvers (14) extending parallel to each other,wherein the louvers (14) are profiled, and wherein the profiles of adjacent louvers (14) overlap in transverse direction.